Katana runs rough when cold - LotusTalk

JUNGLISTluder · 05-15-2008, 08:23 AM

Is it normal for my Katana Elise to run really rough until it is warmed up to ~160 degrees? When I first start the car, it will start right up, but when I touch the gas it wants to bog down. I have to really rev it up to keep the car from stalling until it is warmed up. Idling is fine, this is only when I'm pressing the gas. After it is warmed up, it drives very nice.

Thanks!

ZTEC · 05-15-2008, 08:38 AM

Hmmm, My Elise did that when it was NA and actually idles better now with the Katana blower!

fpitas · 05-15-2008, 08:40 AM

Yep, mine does that too. Idle is fine, even when it's bone cold, but the off-idle throttle response is awful until it's completely warm.

fpitas · 05-15-2008, 08:40 AM

Quote:

Originally Posted by ZTEC

Hmmm, My Elise did that when it was NA and actually idles better now with the Katana blower!

Mine idles better, too. This is about throttle response.

beoswene · 05-15-2008, 08:41 AM

Yes mine has started doing exactly the same thing

JUNGLISTluder · 05-15-2008, 08:45 AM

Quote:

Originally Posted by ZTEC

Hmmm, My Elise did that when it was NA and actually idles better now with the Katana blower!

Read my post. I said that my car idles awesome. It just really bogs when I touch the gas from a stop. I have to rev it way up then let out the clutch, otherwise it wants stall. My car also did this when NA, but it is much worse now.

JUNGLISTluder · 05-15-2008, 08:59 AM

Quote:

Originally Posted by fpitas

Yep, mine does that too. Idle is fine, even when it's bone cold, but the off-idle throttle response is awful until it's completely warm.

Sounds exactly like my problem. Wondering why nobody has posted about this yet.

ZTEC · 05-15-2008, 09:00 AM

Quote:

Originally Posted by JUNGLISTluder

Read my post. I said that my car idles awesome. It just really bogs when I touch the gas from a stop. I have to rev it way up then let out the clutch, otherwise it wants stall. My car also did this when NA, but it is much worse now.

I did read your post I just didn't word it properly, I always let my car warm up so, I have not experienced that before!
NZ

exarkun1178 · 05-15-2008, 09:06 AM

has any one spoken to Charlie? id bet he has a fix already.

mpsalm · 05-15-2008, 09:13 AM

When just starting up my car it used to bog down when I touched the gas. Haven't tried lately but right after the S/C install it stopped doing that and revved smoothly. I'll have to try again now with the S/C installed. I have the other kit though.

tvacc · 05-15-2008, 09:18 AM

From the two cars I have seen with the Katana....they are doing the exact same thing. Must be an issue.

JUNGLISTluder · 05-15-2008, 09:21 AM

Ok, well at least this is some comforting news for me; since I'm not the only one.

tvacc · 05-15-2008, 09:32 AM

let me be very clear on this. It only happans for a few seconds when you start it from cold. I would say about 1 min. The car is undrivable for that minute. then it gets progressivly better till it warms up. It is fine after that. No big deal in my opinion, but our owners would like to have it fixed.

JUNGLISTluder · 05-15-2008, 09:37 AM

Quote:

Originally Posted by tvacc

let me be very clear on this. It only happans for a few seconds when you start it from cold. I would say about 1 min. The car is undrivable for that minute. then it gets progressivly better till it warms up. It is fine after that. No big deal in my opinion, but our owners would like to have it fixed.

Yes, exact same issue. Not a major problem, just unexpected. I'll just warm my car up more next time and see what happens.

I've also had an issue a few times now where the shift light will come on around 6k. Not sure why it would do that.

tvacc · 05-15-2008, 09:40 AM

Quote:

Originally Posted by JUNGLISTluder

Yes, exact same issue. Not a major problem, just unexpected. I'll just warm my car up more next time and see what happens.

I've also had an issue a few times now where the shift light will come on around 6k. Not sure why it would do that.

The shift light will always come on at 6K until the engine warms up. That is normal. If you mean it comes on after it warms up...then that is not normal and we have not seen that in the two cars we have done.

Z-dculus · 05-15-2008, 09:42 AM

mine does it N/A

fpitas · 05-15-2008, 09:47 AM

Mine eventually warms up and quits doing it when the weather is warm, say over 70F, but it never goes away when it's colder than that. It's kind of annoying, to say the least.

JUNGLISTluder · 05-15-2008, 09:54 AM

Quote:

Originally Posted by tvacc

The shift light will always come on at 6K until the engine warms up. That is normal. If you mean it comes on after it warms up...then that is not normal and we have not seen that in the two cars we have done.

Yes, I'm talking about after it is warmed up. One example, I was cruising on the highway and downshifted to 3rd at 60mph. The shift light came on at 6k.
Very wierd.

fzust · 05-15-2008, 10:17 AM

Quote:

Originally Posted by JUNGLISTluder

Yes, I'm talking about after it is warmed up. One example, I was cruising on the highway and downshifted to 3rd at 60mph. The shift light came on at 6k.
Very wierd.

Check the connectors for your cam sensors. If they get disconnected it won't rev above 6k.

turbophil · 05-15-2008, 10:25 AM

Sounds like an 06 issue. the 05s for sure do not do that. Starts and runs smooth regardless of temp. All that cold weather bucking the car did stock went away with the Katana.... Yet another reason why the 05 is better than the later DBW cars

Cheers,

P

05-15-2008, 08:23 AM	#1 (permalink)
JUNGLISTluder High Roller Join Date: Aug 2007 Location: Alexandria, VA Posts: 808 Images: 6	Katana runs rough when cold Is it normal for my Katana Elise to run really rough until it is warmed up to ~160 degrees? When I first start the car, it will start right up, but when I touch the gas it wants to bog down. I have to really rev it up to keep the car from stalling until it is warmed up. Idling is fine, this is only when I'm pressing the gas. After it is warmed up, it drives very nice. Thanks! __________________ 96 Ferrari F355 Berlinetta 06 Lotus Elise Supercharged - SOLD 88 BMW 528is

05-15-2008, 08:38 AM	#2 (permalink)
ZTEC Third Eye Open Join Date: Jan 2006 Location: Florida Posts: 1,737 Images: 3	Hmmm, My Elise did that when it was NA and actually idles better now with the Katana blower! __________________ GO: Vision Function Stage II Intercooled Bliss with Charlie's ECU magic and Ronin's Tenacity! STOP: DBA 4000's, Porterfield R4! TURN: Nitron S/A's Toyo RA1's 225/245 on Rota's!

05-15-2008, 08:40 AM	#3 (permalink)
fpitas User, Registered Join Date: Sep 2005 Location: Leesburg, VA Posts: 1,827	Yep, mine does that too. Idle is fine, even when it's bone cold, but the off-idle throttle response is awful until it's completely warm. __________________ Francis 2006 Chrome Orange Elise: LSD/TC, Nitron SAs with 425/650 springs, BWR 7/8" Front Bar, Eliseparts bumpsteer kit, VF Stage 2, 2bular Header + Sport Cat + 8x24 GT3 Muffler, ECU Tune by Jermaine, Smaay's fuel rail, ACT XT clutch, Saikou Michi dual catch can, Moroso pan, Manly's mount inserts & FF Engine Damper 2000 Black Integra Type R: - 213,000 miles...running again!

05-15-2008, 09:06 AM	#9 (permalink)
exarkun1178 Registered User Join Date: Feb 2007 Location: Point Pleasant Beach, NJ Posts: 4,286	has any one spoken to Charlie? id bet he has a fix already. __________________ [Ovarian Odorist] 11:12 pm: why did you ever get into your business rob...you have such great potential in the adult porn industry..

05-15-2008, 09:18 AM	#11 (permalink)
tvacc Head LOONY Join Date: Apr 2004 Location: Buffalo, NY Posts: 2,225	From the two cars I have seen with the Katana....they are doing the exact same thing. Must be an issue. __________________ Tony Vaccaro 2005 Ardent Red, Katana Supercharger, Touring, Hardtop, Driving Lights, HIDs, Rear Window Shield, Red Mounts, Laser Shifters, V1, LETSLA Shifter, www.lotusowners.com LOONY (Lotus Owners of New York) and the Church of the HolyLotus Supplier of Polycarbonate Shield for Rear Window IN STOCK , Drive Fast Take Chances

05-15-2008, 08:41 AM	#5 (permalink)
beoswene Registered User Join Date: Jun 2007 Posts: 9	Yes mine has started doing exactly the same thing

05-15-2008, 09:13 AM	#10 (permalink)
mpsalm BANNED Join Date: Jun 2006 Posts: 1,348	When just starting up my car it used to bog down when I touched the gas. Haven't tried lately but right after the S/C install it stopped doing that and revved smoothly. I'll have to try again now with the S/C installed. I have the other kit though.

05-15-2008, 09:21 AM	#12 (permalink)
JUNGLISTluder High Roller Join Date: Aug 2007 Location: Alexandria, VA Posts: 808 Images: 6	Ok, well at least this is some comforting news for me; since I'm not the only one. __________________ 96 Ferrari F355 Berlinetta 06 Lotus Elise Supercharged - SOLD 88 BMW 528is

05-15-2008, 09:32 AM	#13 (permalink)
tvacc Head LOONY Join Date: Apr 2004 Location: Buffalo, NY Posts: 2,225	let me be very clear on this. It only happans for a few seconds when you start it from cold. I would say about 1 min. The car is undrivable for that minute. then it gets progressivly better till it warms up. It is fine after that. No big deal in my opinion, but our owners would like to have it fixed. __________________ Tony Vaccaro 2005 Ardent Red, Katana Supercharger, Touring, Hardtop, Driving Lights, HIDs, Rear Window Shield, Red Mounts, Laser Shifters, V1, LETSLA Shifter, www.lotusowners.com LOONY (Lotus Owners of New York) and the Church of the HolyLotus Supplier of Polycarbonate Shield for Rear Window IN STOCK , Drive Fast Take Chances

05-15-2008, 09:42 AM	#16 (permalink)
Z-dculus Derriere Extraordinaire Join Date: Nov 2006 Location: US OF A! Posts: 2,311	mine does it N/A __________________ 2006 KG-Sport Pack, LSD, TC, SS, RAC Monolites, Sector CF Roof, Carbon 3 Element Diffuser, V3 Panel eliminator (p-coated), Odyssey PC680, Boomerang , HIDs, CF Console, Multivex, Lotus Stage II, CF Zoom Rear View, Sector LidBone, Darth Holder (thanks Kestrel!), Sector 4Tress Harness Bar/CRD Mount, couple exige trim pieces- KGB Authenticated 2009 VeeDub Jetta (new kid on the block) 1978 Chevrolet Caprice Classic -(relegated to 'project car' status)

05-15-2008, 09:47 AM	#17 (permalink)
fpitas User, Registered Join Date: Sep 2005 Location: Leesburg, VA Posts: 1,827	Mine eventually warms up and quits doing it when the weather is warm, say over 70F, but it never goes away when it's colder than that. It's kind of annoying, to say the least. __________________ Francis 2006 Chrome Orange Elise: LSD/TC, Nitron SAs with 425/650 springs, BWR 7/8" Front Bar, Eliseparts bumpsteer kit, VF Stage 2, 2bular Header + Sport Cat + 8x24 GT3 Muffler, ECU Tune by Jermaine, Smaay's fuel rail, ACT XT clutch, Saikou Michi dual catch can, Moroso pan, Manly's mount inserts & FF Engine Damper 2000 Black Integra Type R: - 213,000 miles...running again!

05-15-2008, 10:25 AM	#20 (permalink)
turbophil Plug Whisperer Join Date: Dec 2005 Location: Kansas City/ Overland Park Posts: 2,544 Images: 6	Sounds like an 06 issue. the 05s for sure do not do that. Starts and runs smooth regardless of temp. All that cold weather bucking the car did stock went away with the Katana.... Yet another reason why the 05 is better than the later DBW cars Cheers, P __________________ \| '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*

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