Hot and Rough part 2 - LotusTalk

RepsolRoss · 04-23-2008, 10:12 AM

FIXED

Broken wire on the O2 sensor!

OK, so I have asked once what could cause these 2 symptoms. My car is getting worse as time goes on. It's been in the shop now for quite some time and nothing has been found. The Lotus rep is now being brought in to help diagnose.

I had the clutch replaced and afterward this phenomenon has come to light. It runs 7 degrees warmer than it used to and runs rough. Techs have been trying to say it's the Fujita intake, but I don't buy it. The intake was installed 7,000 miles and nearly two years ago and didn't see a problem until post clutch replacement.

I figured last time I posed the question I would get some good feedback with all the Lotus/auto expertise that usually lurks the site.

Anyone?

SweetDaddyD · 04-23-2008, 10:20 AM

I don't see how there is any reason the clutch replacement could make it run rough, or warm.

Is there possible a vacuum line that may of become unattached with the transaxle removal? That's what I would look around for.

JUNGLISTluder · 04-23-2008, 10:22 AM

What temp does the car run? My car usually opperates at 190-210 degrees (been as high as 218 in traffic). Sometimes in the high 180's, but usually around 190.

nitro_rider · 04-23-2008, 10:27 AM

maybe a ground wire or nicked or bent wire

RepsolRoss · 04-23-2008, 10:35 AM

Quote:

Originally Posted by JUNGLISTluder

What temp does the car run? My car usually opperates at 190-210 degrees (been as high as 218 in traffic). Sometimes in the high 180's, but usually around 190.

Ran consistently (not in traffic, not in hot weather) at 185, now runs consistently 192.

RepsolRoss · 04-23-2008, 10:37 AM

Quote:

Originally Posted by SweetDaddyD

I don't see how there is any reason the clutch replacement could make it run rough, or warm.

Is there possible a vacuum line that may of become unattached with the transaxle removal? That's what I would look around for.

I whole-heartedly agree with your first statement.

Vacuum lines and electrical wires have been checked for routing and/or damage.

glb · 04-23-2008, 10:52 AM

Quote:

Originally Posted by RepsolRoss

Ran consistently (not in traffic, not in hot weather) at 185, now runs consistently 192.

You might try bleeding air from the cooling system, in case mechanic didn't get it all.

PS: Mine runs about 185.

jlj3394 · 04-23-2008, 11:00 AM

Quote:

Originally Posted by RepsolRoss

Ran consistently (not in traffic, not in hot weather) at 185, now runs consistently 192.

Could just be the gauge or sender. Ours runs at a consistant 187. If stopped, it will occasionally find the 200's.

Brennon · 04-23-2008, 11:18 AM

Mine is typically at a steady 186, 182 if it's cold out and I'm on the freeway.

HJZ · 04-23-2008, 11:24 AM

Quote:

Originally Posted by Brennon

Mine is typically at a steady 186, 182 if it's cold out and I'm on the freeway.

Hmm... for reference. After my header and exhaust install, with the rear panel delete. It's running from 179 (when it's cold), and 180-181 at highway speeds and warm. Traffic is a different story.

mikecronis · 04-23-2008, 03:44 PM

Mine's 192. I don't think 190-200 is that hot at all. Perhaps the ECU flash didn't take correctly? I recommend a reflash. +1 on loose vacuum line. Very hot weather at 210+ is not uncommon as the fans kick-in around there.

glb · 04-23-2008, 06:41 PM

easiest steps 1st.

It's easy enough to bleed air from coolant, at the least it'll eliminate that as a source.

RepsolRoss · 04-24-2008, 04:10 AM

I'm mentioning the cooling system to them (again) this morning. I don't think they looked at it before, they were so set on it being my intake.

I'm not concerned about the car running 192 degrees. I understand that under 220 is safe in a fuel injected motor. I am concerned that it is now running at that temp with only a clutch replacement, and running rough.

ECU has been changed to Lotus Sport ECU post issue.

Thanks for all the replies, I appreciate them!

FLuXeXigeS · 04-24-2008, 10:43 AM

maybe overfilled tranny fluid after reinstalling the clutch?

bad flywheel?

bad throw out bearing?

just warmer weather in your area?

im just throwing things out there, let us know how it goes

RepsolRoss · 04-29-2008, 10:41 AM

Lotus regional rep diagnosed catalytic converter! Being replaced now, fingers crossed!

RepsolRoss · 04-29-2008, 11:58 AM

Dangit, wasn't the catalytic converter.

FLuXeXigeS · 04-29-2008, 01:50 PM

no way it could have been cat, usually u can start with the easiest and cheapest item, then move up from there

RepsolRoss · 05-08-2008, 04:55 AM

UPDATE: Broken/Pinched O2 sensor wire. I will not be able to pick it up till Saturday, fingers crossed that it is indeed fixed!

RepsolRoss · 05-13-2008, 11:21 AM

FIXED

Broken wire on the O2 sensor!

04-23-2008, 10:12 AM	#1 (permalink)
RepsolRoss Registered User Join Date: Apr 2006 Location: Pflugerville, TX (Austin area) Posts: 212	Hot and Rough part 2 FIXED Broken wire on the O2 sensor! OK, so I have asked once what could cause these 2 symptoms. My car is getting worse as time goes on. It's been in the shop now for quite some time and nothing has been found. The Lotus rep is now being brought in to help diagnose. I had the clutch replaced and afterward this phenomenon has come to light. It runs 7 degrees warmer than it used to and runs rough. Techs have been trying to say it's the Fujita intake, but I don't buy it. The intake was installed 7,000 miles and nearly two years ago and didn't see a problem until post clutch replacement. I figured last time I posed the question I would get some good feedback with all the Lotus/auto expertise that usually lurks the site. Anyone? __________________ 05 Saffron Yellow Elise: Hard Top, Black Exige Wheels, Lotus Sport ECU, Stage 2 Exhaust, Fujita Intake, ACT clutch, ForcedFed Half Carbon Fiber Front Spoiler, Lotus Sport Mats, Painted Shift Knob, Painted Engine Covers, Saffron Center Console, Leather HandBrake Gaiter, Lotus Sport Windshield Banner Last edited by RepsolRoss : 05-13-2008 at 11:22 AM.

04-23-2008, 10:20 AM	#2 (permalink)
SweetDaddyD Sticker Guy Join Date: Jan 2005 Location: ATL, GA Posts: 5,788	I don't see how there is any reason the clutch replacement could make it run rough, or warm. Is there possible a vacuum line that may of become unattached with the transaxle removal? That's what I would look around for. __________________ "Starshield" Group Buy: http://www.lotustalk.com/forums/showthread.php?t=51323 ChuforiaGraffix.com Custom decals, magnetics, banners, stripes, racing numbers,etc.SweetDaddyDelicious@hotmail.com

04-23-2008, 10:22 AM	#3 (permalink)
JUNGLISTluder High Roller Join Date: Aug 2007 Location: Alexandria, VA Posts: 634 Images: 6	What temp does the car run? My car usually opperates at 190-210 degrees (been as high as 218 in traffic). Sometimes in the high 180's, but usually around 190. __________________ 06 Lotus Elise - AR/Blk, Touring, Premium, TC, HT, DRL Delete, X-Pel, TS Pro1 Exhaust, TS Pro1 Intake, BBmod, Saikou Michi OCC, 6000k HIDs, Stealth Bulbs, 07+ Letters, Re-grooved Bilsteins, LG Stone Guards, CR Engine Covers, S111 Folding Tow Hook, FF CF Spoiler, 17" PIAA FR-7s, CharlieX 06 ECU V2.0, Greddy/BOE Supercharger 88 BMW 528is - Blue/Llama Beige, M20 stroker motor, Alpina SW, 3.73 LSD, BavAuto Springs, Bilstein Sports, M3 SSK, 16x8 BBS, 225/245 tires, shadowline

04-23-2008, 06:41 PM	#12 (permalink)
glb Unattractive Nuisance Join Date: May 2005 Location: Chester, NJ Posts: 3,231	easiest steps 1st. It's easy enough to bleed air from coolant, at the least it'll eliminate that as a source. __________________ 05 elise (PES chip, SSRs, Sirius, shift tower reinforcement, Multivex; HID low beams) 05 Corolla XRS; 72 Elan Sprint, 170 hp (Sold) "I can resist anything except temptation" O. Wilde. "Political language is designed to make lies sound truthful and murder respectable." G. Orwell, 1946.

04-24-2008, 04:10 AM	#13 (permalink)
RepsolRoss Registered User Join Date: Apr 2006 Location: Pflugerville, TX (Austin area) Posts: 212	I'm mentioning the cooling system to them (again) this morning. I don't think they looked at it before, they were so set on it being my intake. I'm not concerned about the car running 192 degrees. I understand that under 220 is safe in a fuel injected motor. I am concerned that it is now running at that temp with only a clutch replacement, and running rough. ECU has been changed to Lotus Sport ECU post issue. Thanks for all the replies, I appreciate them! __________________ 05 Saffron Yellow Elise: Hard Top, Black Exige Wheels, Lotus Sport ECU, Stage 2 Exhaust, Fujita Intake, ACT clutch, ForcedFed Half Carbon Fiber Front Spoiler, Lotus Sport Mats, Painted Shift Knob, Painted Engine Covers, Saffron Center Console, Leather HandBrake Gaiter, Lotus Sport Windshield Banner

04-23-2008, 10:27 AM	#4 (permalink)
nitro_rider Registered User Join Date: Oct 2006 Location: st. charles Posts: 31	maybe a ground wire or nicked or bent wire

04-23-2008, 11:18 AM	#9 (permalink)
Brennon Registered User Join Date: Nov 2006 Posts: 1,110	Mine is typically at a steady 186, 182 if it's cold out and I'm on the freeway.

04-23-2008, 03:44 PM	#11 (permalink)
mikecronis Registered User Join Date: Apr 2007 Location: Thornton, CO Posts: 301 Images: 1	Mine's 192. I don't think 190-200 is that hot at all. Perhaps the ECU flash didn't take correctly? I recommend a reflash. +1 on loose vacuum line. Very hot weather at 210+ is not uncommon as the fans kick-in around there.

04-24-2008, 10:43 AM	#14 (permalink)
FLuXeXigeS broke as a joke Join Date: Jul 2007 Location: SoCal/AZ/NV Posts: 3,761	maybe overfilled tranny fluid after reinstalling the clutch? bad flywheel? bad throw out bearing? just warmer weather in your area? im just throwing things out there, let us know how it goes __________________ -Coi- '07 AR Exige S+Gotham, Von Hep, corner balanced&tuned SACHS, 6k HID, JVC KD-NX5000, Alpine 4ch. amp, JL stealth box, s111 rear towhook and harness bar, Starshield, TG4 1/4 turn fasteners, SS brake lines, bling bling eng bay, painted calipers, TD 1.2 wheels w/ Toyo R888, Safecraft harnesses, DRL delete, + more to follow Join Lotuscar.ning.com for LA Lotus social events also add me: www.myspace.com/kandyredcoi

04-29-2008, 10:41 AM	#15 (permalink)
RepsolRoss Registered User Join Date: Apr 2006 Location: Pflugerville, TX (Austin area) Posts: 212	Lotus regional rep diagnosed catalytic converter! Being replaced now, fingers crossed! __________________ 05 Saffron Yellow Elise: Hard Top, Black Exige Wheels, Lotus Sport ECU, Stage 2 Exhaust, Fujita Intake, ACT clutch, ForcedFed Half Carbon Fiber Front Spoiler, Lotus Sport Mats, Painted Shift Knob, Painted Engine Covers, Saffron Center Console, Leather HandBrake Gaiter, Lotus Sport Windshield Banner

04-29-2008, 11:58 AM	#16 (permalink)
RepsolRoss Registered User Join Date: Apr 2006 Location: Pflugerville, TX (Austin area) Posts: 212	Dangit, wasn't the catalytic converter. __________________ 05 Saffron Yellow Elise: Hard Top, Black Exige Wheels, Lotus Sport ECU, Stage 2 Exhaust, Fujita Intake, ACT clutch, ForcedFed Half Carbon Fiber Front Spoiler, Lotus Sport Mats, Painted Shift Knob, Painted Engine Covers, Saffron Center Console, Leather HandBrake Gaiter, Lotus Sport Windshield Banner

04-29-2008, 01:50 PM	#17 (permalink)
FLuXeXigeS broke as a joke Join Date: Jul 2007 Location: SoCal/AZ/NV Posts: 3,761	no way it could have been cat, usually u can start with the easiest and cheapest item, then move up from there __________________ -Coi- '07 AR Exige S+Gotham, Von Hep, corner balanced&tuned SACHS, 6k HID, JVC KD-NX5000, Alpine 4ch. amp, JL stealth box, s111 rear towhook and harness bar, Starshield, TG4 1/4 turn fasteners, SS brake lines, bling bling eng bay, painted calipers, TD 1.2 wheels w/ Toyo R888, Safecraft harnesses, DRL delete, + more to follow Join Lotuscar.ning.com for LA Lotus social events also add me: www.myspace.com/kandyredcoi

05-08-2008, 04:55 AM	#18 (permalink)
RepsolRoss Registered User Join Date: Apr 2006 Location: Pflugerville, TX (Austin area) Posts: 212	UPDATE: Broken/Pinched O2 sensor wire. I will not be able to pick it up till Saturday, fingers crossed that it is indeed fixed! __________________ 05 Saffron Yellow Elise: Hard Top, Black Exige Wheels, Lotus Sport ECU, Stage 2 Exhaust, Fujita Intake, ACT clutch, ForcedFed Half Carbon Fiber Front Spoiler, Lotus Sport Mats, Painted Shift Knob, Painted Engine Covers, Saffron Center Console, Leather HandBrake Gaiter, Lotus Sport Windshield Banner Last edited by RepsolRoss : 05-08-2008 at 06:36 AM.

05-13-2008, 11:21 AM	#19 (permalink)
RepsolRoss Registered User Join Date: Apr 2006 Location: Pflugerville, TX (Austin area) Posts: 212	FIXED Broken wire on the O2 sensor! __________________ 05 Saffron Yellow Elise: Hard Top, Black Exige Wheels, Lotus Sport ECU, Stage 2 Exhaust, Fujita Intake, ACT clutch, ForcedFed Half Carbon Fiber Front Spoiler, Lotus Sport Mats, Painted Shift Knob, Painted Engine Covers, Saffron Center Console, Leather HandBrake Gaiter, Lotus Sport Windshield Banner

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