EFI Tunning Tips Here - Page 12 - LotusTalk

Kris from DRS · 06-02-2009, 06:51 PM

Quote:

Originally Posted by Solo2Elise

When the problem occurs, I didn't hook up laptop with EFI. Once Power to Win synched with EFI, idle immediately dropped. The idle screw is in perfectly. Throttle cable, IAC, throttle body has been checked/cleaned/replaced. No, stabbing throttle does not help.

I also think it might have a leak somewhere. Maybe fuel injector leak?

Check a few basic things:
1. Is the closed-throttle around 10 Deg?

2. In Idle Constants, What are all the values?
Typical values, are 400 Hz, TPS limit of 11.5 or 12, RPM limit of 1,500 to 2,000 P Gain of 50 to 60, and I gain of 5.

The above are very important. If a condition is exceeds one of these limits the IAC circuit turns off and then the valve will stick open causing a high idle (like a vacuum leak). This type of IAC is essentially a controlled vacuum leak (unlike DBW cars that use the throttle plate).

Also, check the condition of the IAC connector. Do wires look OK? Are the sockets in the housing in good shape? Check for 12V at the green wire. Then try pulling on the wires a little and see if your voltage changes.

regarding your fuel leak. This is dangerous, but second to thatm if there is fuel leaking on the manifold side of the injector this is also a vacuum leak. If this vacuum leak accelerates the engine above the RPM limit mentioned above then the IAC circuit will turn off b/c the ECU thinks it doesnt need to be in idle mode.

More on vaccum leaks and using software tools to help diagnose and protect the engine from over revs as a result of vacuum leaks in my next post.

Kris

Kris from DRS · 06-02-2009, 07:12 PM

More on vaccum leaks and using software tools to help diagnose and protect the engine from over revs as a result of vacuum leaks:

In Accel / Decel:

Accel Constants:

RPM fuel cutoff limit should be from 2,200 to 2,800 range.

The lower the RPM the lower engine revs need to be before fuel injection turns back on.

TPS fuel cutoff limit should be around 11 to 12 for non-DBW cars (8 to 9 for DBW cars not using the controller, and 9-10 for DBW cars using our DBW controller).

If this value is below the closed-throttle position (TPS at idle) the fuel cutoff will not function. This means that when in decel (coasting off throttle the injectors will run at whatever the value is in the fuel map).

This is not a big deal, but is a waste of fuel and could cause some flames to shoot out of the exhaust in a high RPM throttle lift.

In some cases (in a race condition) sometimes the fuel cutoff is intentionally disabled (i.e. enter unobtainable values, such as 12,000 rpm and 125 deg throttle). Some engines can benefit from the cooling effect from the fuel running on into the cylinders. And in turbo engines this (combined with other things outside of the scope of this post) can be used to accelerate the turbine and create an "anti-lag" effect.

Back to the Accel/Decel TPS and RPM limits. If used properly this will not allow the engine to rev without intention. For example, if your throttle is closed, but you open another place in the intake (fuel injector o-ring seal, intake manifold gasket, etc...) the increase in air will have the same effect as if the throttle was opening. It hardly takes any fuel to rev an engine to the rev limiter without load. So, if the ECU knows to cut fuel if TPS is below X degrees while engine is above X RPM this will limit the engine from revving up.

How to monitor this function or test it: 2 easy ways.

In Data Controls you can monitor Injection time in units of Ms. When in decel fuel cut mode the injection time will go to zero.

On the top tool bar in the Editor, Under Syscon, Select System Flags, the Flag Monitor will open, the bottom right most column has the FLGCUT "buttons". When a FLAG is active it will turn on bright green color. The Overrun button indicates the Decel Fuel Cutoff function.

Kris

Kris from DRS · 06-02-2009, 07:16 PM

More info on our site here Dynamic Racing Solutions - Complete ECU Control for the Lotus Elise and Exige S then click on the software guide to the right side of the screen.

This article is still evolving as time permits. Please forward any suggestions or questions to my email, kris@racesolutions.com

thanks
Kris

turbophil · 06-08-2009, 08:55 PM

Great news for ALL EFI users (Including you turbo guys

). Have another new firmware update (attached below). This is a bit of tweak to the most recent. It has greater fuel accel function enhancements and some additional fan hysteresis for those who are controlling their cooling fans with the EFI...

I've attached a ZIP file that includes special instructions for this update. The instructions include the suggested fuel map changes along with installation instructions.

I added this along with the complete and latest EFI software installation on my website.

If you're not running the latest 7.1.11 editor, you should-- also available on BOE...

Big thanks to Kris for his continued support for this great solution

Enjoy,

Phil

PS- No wise cracks about my amateur instructions

I'm just doing this for the fun of it!

robains · 06-09-2009, 09:06 AM

Phil's lost without his administrative assistant. -- come on you were begging for it.

Just want to confirm, I have the new firmware and it does indeed make throttle response/resolutions considerably better, VERY smooth.

I do a lot of heal/toe while street driving just to keep in practice for track, it's actually MUCH more difficult to do it smoothly on the street -- light input. New firmware has made my practice much easier.

Maypo · 06-18-2009, 09:16 AM

Quote:

Originally Posted by turbophil

Hey All EFI users, I thought I would post up the new VVT firmware instructions...

Look at your “checksum” to ensure that your firmware loaded correctly. It should be 364FH. The checksum is found on the main screen of the editor in the “file folder” window toward the bottom…
Phil

Phil,

After complete installation (Editor, software and firmware) I don't have that checksum value. It's 73... I can see the new VVT table and the car seems to pull stronger at low revs (dyno session slated for tomorrow), but no 364FH checksum.

robains · 06-18-2009, 09:23 AM

Quote:

Originally Posted by Maypo

Phil,

After complete installation (Editor, software and firmware) I don't have that checksum value. It's 73... I can see the new VVT table and the car seems to pull stronger at low revs (dyno session slated for tomorrow), but no 364FH checksum.

That's an old checksum, should read 7B6H. The latest nEditor is actually 7.1.12 if you use Phil's "package" download (.zip).

If you are installing Phil's zip, ignore the _MACOSX file warning (hit skip). I'd also recommend you backup your maps/data and control.def file. Uninstall the older software, then install the new software.

Rob.

turbophil · 06-18-2009, 09:54 AM

I echo what Rob said... Also, I updated the checksum to look for on the website to reflect the newest: BOEFabrication.com | Beyond Original Equipment a bit ago, just a fYI...

I try to keep that site up to date with the latest and greatest. If you're coming from really old version and have only old maps and old wiring harness, you'll need to swap a pin and change some settings on your map for the VVT to work. You may want to send your map to either Rob, Kris, me, etc to make sure the map looks good. Also verify that pin 8 on the large EFI connector is going to your VVT actuator... Pretty simple stuff, just double checking. With the latest FW and correct settings, you should have an OEM feel to the tune...

Best,

tp

PS- my email, phil at boefabrication dot com

Maypo · 06-18-2009, 10:48 AM

Well, the 'package' was sent to me by Kris last month and I loaded the components following your and his instructions.

I'll pull up the Editor tonight and check the version again.

Thanks.

turbophil · 06-18-2009, 10:58 AM

Cool... You're probably just fine then... post/email if you need any help...

Cheers,

TP

Kris from DRS · 06-20-2009, 02:04 PM

Quote:

Originally Posted by Maypo

Well, the 'package' was sent to me by Kris last month and I loaded the components following your and his instructions.

I'll pull up the Editor tonight and check the version again.

Thanks.

The two last versions of firmware updates were very close to each other in date. Shortly after you were sent what was new at that time we released another update. The current one is checksum 7B6H.

Kris

Pk8 · 06-21-2009, 01:48 PM

Quote:

Originally Posted by robains

That's an old checksum, should read 7B6H. The latest nEditor is actually 7.1.12 if you use Phil's "package" download (.zip).

If you are installing Phil's zip, ignore the _MACOSX file warning (hit skip). I'd also recommend you backup your maps/data and control.def file. Uninstall the older software, then install the new software.

Rob.

Question, I'm running 7.1.11 with the firmware version of 7b6h. Should I go ahead and upgrade to 7.1.12? Should I also be using the control file that installs with 7.1.12? I'm not quite sure how the file versions match up. Kris had me just replace my neditor and control file to get me upgraded to 7.1.11 previously.

Thanks!

turbophil · 06-21-2009, 02:10 PM

7.1.11 is fine with 7b6h... I still haven't gotten around to running 12, FWIW... The control files are more of convenience than anything, as they relabel things like VANOS to VVTI or "cam settings"... You must have a control file present in every folder that a map is found in, but aside from that, both the older and newer control files will function just fine... Furthermore, the control files are used only for the editor. The EFI itself doesn't use the control files...

I'm not telling you to not be as up to date as possible, just letting you know that if you're slow to getting around to these most recent improvements, nothing bad will happen... The only crucial update to have is an editor that is 7.1.11 or newer before switching to any of the latest and greatest...

Hope that helps,

Phil

robains · 06-21-2009, 05:01 PM

Quote:

Originally Posted by Pk8

Question, I'm running 7.1.11 with the firmware version of 7b6h. Should I go ahead and upgrade to 7.1.12? Should I also be using the control file that installs with 7.1.12? I'm not quite sure how the file versions match up. Kris had me just replace my neditor and control file to get me upgraded to 7.1.11 previously.

Thanks!

What Phil said, 7.1.11 is fine you don't NEED to upgrade to 7.1.12.

Rob

CUP_240 · 07-08-2009, 07:34 PM

Is there any software updates from August 2008 till today ?

Just wanted to check if my spare ecu is current ...

If there is any updates can this be downloaded somewere or do i need to send my Ecu to DRS ...

Im in Australia so fingers crossed i dont need to ship it out if possible ..

Cheers

cstetter · 07-08-2009, 10:22 PM

Guys, my FF Elise is going back to Forcedfed this Saturday to fix the issues I ran into during last Sunday's track day (car would not accept more than 50% throttle). What should I ask Casey to install/update? I'd really like to get the version with the much improved idle... is 7B6H still the latest and is it safe to use with FF275 turbo?

Thanks!

turbophil · 07-08-2009, 10:30 PM

It really depends on your turbo setup... give me a ring (pm me) and we can go over what you've got and what will work.

Take care,

Phil

RCHAD · 08-05-2009, 07:20 PM

hi all, i got the firmware update and with much generous help from phil and some input from kris the car feels even beter than before....still waiting for an open dyno day....could someone in ootah please buy a freakin dynojet and put it a little closer than 100 miles away!
thanks guys!

E.D. · 08-09-2009, 11:50 AM

I updated the EFI in my car yesterday with latest firmware + updated map from Phil.

Because of corrosion in the various plugs, created during the transport US --> Europe (thank you transport company), the electrical system in my car has issues: when pushing the start button car tries to start, but not enough electricity, so start motor quits, electricity goes up again so car tries to start again, not enough electricity, so start motor quits etc.etc. It was sort of oscillating except for one time when the car finally started for about 10sec then died again.
During the time I needed to complete the EFI update this oscillating effect stopped…when pushing the start button nothing happens anymore. Fuses are OK, and it’s not a problem with not properly grounding the car. The mechanic says it looks the alarm process isn’t fully finished: it keeps blocking the start button after turning the key and disabling the alarm, my light of the traction control on the console is also flashing very quickly. Weird. I said the EFI doesn’t do anything with the alarm since this is still controlled by the Lotus ECU. So something else broke coincidentally during the update process.
Q: Is my statement correct about the EFI not having anything to do w/the alarm?

The garage will start looking into this problem later this week, cleaning all contacts further etc. measuring the electrical stuff bit by bit to figure out where the hell the problem is.
After that we only need the repair the front clam, get the front grill and the left rear small plastic vents back on, getting the A/F meter working again. God I love this transport company…I’ll try so also send me the repair bill for all this sh*t problems they created, we’ll see how that will end…

RCHAD · 08-10-2009, 12:55 PM

btw, my fans and ac being stuck on after a short wot is now resolved with the new firmware...however i did have to remove the efi controlled boost controller and go to a manual one (which i think works better for me anyway). the fan turn on point is a little annoying while idling, on-off-on-off-on i did try a higher turn on point...i think it needs a turn on point and a lower turn off point...other than that it works well

06-02-2009, 07:12 PM	#222 (permalink)
Kris from DRS Dynamic Racing Solutions Join Date: Oct 2006 Location: La Habra CA Posts: 343	More on vaccum leaks and using software tools to help diagnose and protect the engine from over revs as a result of vacuum leaks: In Accel / Decel: Accel Constants: RPM fuel cutoff limit should be from 2,200 to 2,800 range. The lower the RPM the lower engine revs need to be before fuel injection turns back on. TPS fuel cutoff limit should be around 11 to 12 for non-DBW cars (8 to 9 for DBW cars not using the controller, and 9-10 for DBW cars using our DBW controller). If this value is below the closed-throttle position (TPS at idle) the fuel cutoff will not function. This means that when in decel (coasting off throttle the injectors will run at whatever the value is in the fuel map). This is not a big deal, but is a waste of fuel and could cause some flames to shoot out of the exhaust in a high RPM throttle lift. In some cases (in a race condition) sometimes the fuel cutoff is intentionally disabled (i.e. enter unobtainable values, such as 12,000 rpm and 125 deg throttle). Some engines can benefit from the cooling effect from the fuel running on into the cylinders. And in turbo engines this (combined with other things outside of the scope of this post) can be used to accelerate the turbine and create an "anti-lag" effect. Back to the Accel/Decel TPS and RPM limits. If used properly this will not allow the engine to rev without intention. For example, if your throttle is closed, but you open another place in the intake (fuel injector o-ring seal, intake manifold gasket, etc...) the increase in air will have the same effect as if the throttle was opening. It hardly takes any fuel to rev an engine to the rev limiter without load. So, if the ECU knows to cut fuel if TPS is below X degrees while engine is above X RPM this will limit the engine from revving up. How to monitor this function or test it: 2 easy ways. In Data Controls you can monitor Injection time in units of Ms. When in decel fuel cut mode the injection time will go to zero. On the top tool bar in the Editor, Under Syscon, Select System Flags, the Flag Monitor will open, the bottom right most column has the FLGCUT "buttons". When a FLAG is active it will turn on bright green color. The Overrun button indicates the Decel Fuel Cutoff function. Kris __________________ Motorsport Components and Expert Service. Complete Lotus maintenance, installations, track preparation and specialty services.

06-02-2009, 07:16 PM	#223 (permalink)
Kris from DRS Dynamic Racing Solutions Join Date: Oct 2006 Location: La Habra CA Posts: 343	More info on our site here Dynamic Racing Solutions - Complete ECU Control for the Lotus Elise and Exige S then click on the software guide to the right side of the screen. This article is still evolving as time permits. Please forward any suggestions or questions to my email, kris@racesolutions.com thanks Kris __________________ Motorsport Components and Expert Service. Complete Lotus maintenance, installations, track preparation and specialty services.

06-09-2009, 09:06 AM	#225 (permalink)
robains 2007 Exige S Join Date: Jul 2007 Location: CA, Bay Area Posts: 1,820	Phil's lost without his administrative assistant. -- come on you were begging for it. Just want to confirm, I have the new firmware and it does indeed make throttle response/resolutions considerably better, VERY smooth. I do a lot of heal/toe while street driving just to keep in practice for track, it's actually MUCH more difficult to do it smoothly on the street -- light input. New firmware has made my practice much easier. __________________ '07 Exige S (Track Pack & LSD) + EFi 550ci injectors + Mahle 9:1 + DRS Port + SuperTech Valves + Weapon R Header + 2.9" pully + TODA Clutch + FF Engine Damper + RLS IC + Greddy catch cans + opened roof slot + RTD brace + Milled steering arms + Larini 8" + FF air intake + Moroso oil pan + Ultradisc 2 piece front/rear + Reverie 1650mm wing + ReVerie front splitter + IQ3 Dash + 4pt ASM + Pioneer AVIC-N2 nav + rear camera + RAC monolites 888s 195/225 + Lotus LSS Hoosier R6 205/225 @ 1921 lbs

06-18-2009, 09:54 AM	#228 (permalink)
turbophil Plug Whisperer Join Date: Dec 2005 Location: Kansas City/ Overland Park Posts: 2,544 Images: 6	I echo what Rob said... Also, I updated the checksum to look for on the website to reflect the newest: BOEFabrication.com \| Beyond Original Equipment a bit ago, just a fYI... I try to keep that site up to date with the latest and greatest. If you're coming from really old version and have only old maps and old wiring harness, you'll need to swap a pin and change some settings on your map for the VVT to work. You may want to send your map to either Rob, Kris, me, etc to make sure the map looks good. Also verify that pin 8 on the large EFI connector is going to your VVT actuator... Pretty simple stuff, just double checking. With the latest FW and correct settings, you should have an OEM feel to the tune... Best, tp PS- my email, phil at boefabrication dot com __________________ \| '05 GG LSS Elise \| A Track Chariot \| BOE ClamHinge \| BOE TVS SuperCharger 280whp/180wtq \| EFI Standalone Engine Management \| BOE Fuel Surge System \| BOE Lotus Tow Package See my car at BOE Fabrication: www.boefabrication.com *----->Last Updated: 9/25/2009* If something ain't worth doing right, it ain't worth doing... *Whoever thought working on a Lotus is hard, clearly hasn't tried it. Pick up a wrench and get some grease under your nails*

06-18-2009, 10:48 AM	#229 (permalink)
Maypo Registered User Join Date: Jan 2007 Location: Up in the corner. Posts: 134	Well, the 'package' was sent to me by Kris last month and I loaded the components following your and his instructions. I'll pull up the Editor tonight and check the version again. Thanks. __________________ 2006 PB Exige (Solo II ASP) 2001 M3 (daily driver) 1998 328i (wife's car) 1992 V6 Miata (grin factory) 'Ferrari 308s and F16s -- these are the conveyances of free men.' - P.J. O'Rourke

06-18-2009, 10:58 AM	#230 (permalink)
turbophil Plug Whisperer Join Date: Dec 2005 Location: Kansas City/ Overland Park Posts: 2,544 Images: 6	Cool... You're probably just fine then... post/email if you need any help... Cheers, TP __________________ \| '05 GG LSS Elise \| A Track Chariot \| BOE ClamHinge \| BOE TVS SuperCharger 280whp/180wtq \| EFI Standalone Engine Management \| BOE Fuel Surge System \| BOE Lotus Tow Package See my car at BOE Fabrication: www.boefabrication.com *----->Last Updated: 9/25/2009* If something ain't worth doing right, it ain't worth doing... *Whoever thought working on a Lotus is hard, clearly hasn't tried it. Pick up a wrench and get some grease under your nails*

06-21-2009, 02:10 PM	#233 (permalink)
turbophil Plug Whisperer Join Date: Dec 2005 Location: Kansas City/ Overland Park Posts: 2,544 Images: 6	7.1.11 is fine with 7b6h... I still haven't gotten around to running 12, FWIW... The control files are more of convenience than anything, as they relabel things like VANOS to VVTI or "cam settings"... You must have a control file present in every folder that a map is found in, but aside from that, both the older and newer control files will function just fine... Furthermore, the control files are used only for the editor. The EFI itself doesn't use the control files... I'm not telling you to not be as up to date as possible, just letting you know that if you're slow to getting around to these most recent improvements, nothing bad will happen... The only crucial update to have is an editor that is 7.1.11 or newer before switching to any of the latest and greatest... Hope that helps, Phil __________________ \| '05 GG LSS Elise \| A Track Chariot \| BOE ClamHinge \| BOE TVS SuperCharger 280whp/180wtq \| EFI Standalone Engine Management \| BOE Fuel Surge System \| BOE Lotus Tow Package See my car at BOE Fabrication: www.boefabrication.com *----->Last Updated: 9/25/2009* If something ain't worth doing right, it ain't worth doing... *Whoever thought working on a Lotus is hard, clearly hasn't tried it. Pick up a wrench and get some grease under your nails*

07-08-2009, 07:34 PM	#235 (permalink)
CUP_240 08 Exige S 240 Join Date: Jun 2008 Location: Australia Posts: 67	Is there any software updates from August 2008 till today ? Just wanted to check if my spare ecu is current ... If there is any updates can this be downloaded somewere or do i need to send my Ecu to DRS ... Im in Australia so fingers crossed i dont need to ship it out if possible .. Cheers Last edited by CUP_240 : 07-08-2009 at 07:41 PM.

07-08-2009, 10:22 PM	#236 (permalink)
cstetter Nothing witty to say Join Date: Oct 2005 Location: San Jose, CA Posts: 1,443	Guys, my FF Elise is going back to Forcedfed this Saturday to fix the issues I ran into during last Sunday's track day (car would not accept more than 50% throttle). What should I ask Casey to install/update? I'd really like to get the version with the much improved idle... is 7B6H still the latest and is it safe to use with FF275 turbo? Thanks!

07-08-2009, 10:30 PM	#237 (permalink)
turbophil Plug Whisperer Join Date: Dec 2005 Location: Kansas City/ Overland Park Posts: 2,544 Images: 6	It really depends on your turbo setup... give me a ring (pm me) and we can go over what you've got and what will work. Take care, Phil __________________ \| '05 GG LSS Elise \| A Track Chariot \| BOE ClamHinge \| BOE TVS SuperCharger 280whp/180wtq \| EFI Standalone Engine Management \| BOE Fuel Surge System \| BOE Lotus Tow Package See my car at BOE Fabrication: www.boefabrication.com *----->Last Updated: 9/25/2009* If something ain't worth doing right, it ain't worth doing... *Whoever thought working on a Lotus is hard, clearly hasn't tried it. Pick up a wrench and get some grease under your nails*

08-05-2009, 07:20 PM	#238 (permalink)
RCHAD 400HPFOCUS Join Date: Jul 2007 Location: RIVERTON UTAH Posts: 167	hi all, i got the firmware update and with much generous help from phil and some input from kris the car feels even beter than before....still waiting for an open dyno day....could someone in ootah please buy a freakin dynojet and put it a little closer than 100 miles away! thanks guys! __________________ "HE WHO SAYS IT CANNOT BE DONE SHOULD NEVER INTERRUPT THE ONE WHO IS DOING IT" R.R.E RIP

08-09-2009, 11:50 AM	#239 (permalink)
E.D. Registered User Join Date: Jul 2007 Location: Amsterdam Posts: 715	I updated the EFI in my car yesterday with latest firmware + updated map from Phil. Because of corrosion in the various plugs, created during the transport US --> Europe (thank you transport company), the electrical system in my car has issues: when pushing the start button car tries to start, but not enough electricity, so start motor quits, electricity goes up again so car tries to start again, not enough electricity, so start motor quits etc.etc. It was sort of oscillating except for one time when the car finally started for about 10sec then died again. During the time I needed to complete the EFI update this oscillating effect stopped…when pushing the start button nothing happens anymore. Fuses are OK, and it’s not a problem with not properly grounding the car. The mechanic says it looks the alarm process isn’t fully finished: it keeps blocking the start button after turning the key and disabling the alarm, my light of the traction control on the console is also flashing very quickly. Weird. I said the EFI doesn’t do anything with the alarm since this is still controlled by the Lotus ECU. So something else broke coincidentally during the update process. Q: Is my statement correct about the EFI not having anything to do w/the alarm? The garage will start looking into this problem later this week, cleaning all contacts further etc. measuring the electrical stuff bit by bit to figure out where the hell the problem is. After that we only need the repair the front clam, get the front grill and the left rear small plastic vents back on, getting the A/F meter working again. God I love this transport company…I’ll try so also send me the repair bill for all this sht problems they created, we’ll see how that will end… __________________ Enrico '06 Laser Blue/Magnolia Lotus Elise BOE TVS SC * EFI * Lots of other things '07 Graphite Grey/Tan BMW 335i w/JB3 tune, Helix IC and BMS DCI

08-10-2009, 12:55 PM	#240 (permalink)
RCHAD 400HPFOCUS Join Date: Jul 2007 Location: RIVERTON UTAH Posts: 167	btw, my fans and ac being stuck on after a short wot is now resolved with the new firmware...however i did have to remove the efi controlled boost controller and go to a manual one (which i think works better for me anyway). the fan turn on point is a little annoying while idling, on-off-on-off-on i did try a higher turn on point...i think it needs a turn on point and a lower turn off point...other than that it works well __________________ "HE WHO SAYS IT CANNOT BE DONE SHOULD NEVER INTERRUPT THE ONE WHO IS DOING IT" R.R.E RIP

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