Missfire

Alan Sweet · Sep 10th, 2010, 11:33

Hi all again

1999 2.3 T5 V70

I have a problem with a misfire not all the time what happens is the car will hold back and misfire exactly like you are running out of petrol even though the fuel gauge shows 5 gallons left and about 200 miles range left then it will clear and run perfect then for no apparent reason will do it again its very frustrating oh and one more thing every now and then the tick over will play up the engine hunts between 500 and 1500 revs very quickly a few stabs on the throttle normally sorts that out not good as the car is automatic i have striped the inlet manifold of and replaced all the vacuum hoses and cleaned and checked the electronic throttle body (it was replaced 9000 miles ago by main dealer still looks new) all seams OK there there was a one way vacuum valve that was sticky but washed that out and that sorted it out there is no warning lights on.

If anybody has any ideas i would be grateful

Alan

ShadeTek · Sep 10th, 2010, 12:06

If you have a standard distributor cap set up and not coil packs, you should look at this as they are the most common faults for misfires. Replace the cap, rotor and leads if they have not been replaced already.

Check that they did ACTUALLY replace the TB and not just clean it and "update the firmware" on it. I think the replacement ones have a different colour sticker. http://home.comcast.net/~donwillson/tech_info.html

Alan Sweet · Sep 11th, 2010, 09:20

Quote:

Originally Posted by ShadeTek

If you have a standard distributor cap set up and not coil packs, you should look at this as they are the most common faults for misfires. Replace the cap, rotor and leads if they have not been replaced already.

Check that they did ACTUALLY replace the TB and not just clean it and "update the firmware" on it. I think the replacement ones have a different colour sticker. http://home.comcast.net/~donwillson/tech_info.html

Thanks for the reply but I Have Coil Packs no dizy and the Throttle Body is Definitely New it needs to be it cost 570€ plus labour in Spain Ouch.

I would be grateful for any more suggestions

Alan

Chris_Rogers · Sep 11th, 2010, 12:26

Hunting idle & cruise not working suggests ETM.

Sep 10th, 2010, 11:33	#1
Alan Sweet Junior Member Last Online: Jun 1st, 2011 22:32 Join Date: Aug 2010 Location: Albox, Spain	Missfire Hi all again 1999 2.3 T5 V70 I have a problem with a misfire not all the time what happens is the car will hold back and misfire exactly like you are running out of petrol even though the fuel gauge shows 5 gallons left and about 200 miles range left then it will clear and run perfect then for no apparent reason will do it again its very frustrating oh and one more thing every now and then the tick over will play up the engine hunts between 500 and 1500 revs very quickly a few stabs on the throttle normally sorts that out not good as the car is automatic i have striped the inlet manifold of and replaced all the vacuum hoses and cleaned and checked the electronic throttle body (it was replaced 9000 miles ago by main dealer still looks new) all seams OK there there was a one way vacuum valve that was sticky but washed that out and that sorted it out there is no warning lights on. If anybody has any ideas i would be grateful Alan

Sep 10th, 2010, 12:06	#2
ShadeTek Premier Member Last Online: Jun 5th, 2024 17:42 Join Date: Dec 2002 Location: Renfrewshire View Photos By: ShadeTek	If you have a standard distributor cap set up and not coil packs, you should look at this as they are the most common faults for misfires. Replace the cap, rotor and leads if they have not been replaced already. Check that they did ACTUALLY replace the TB and not just clean it and "update the firmware" on it. I think the replacement ones have a different colour sticker. http://home.comcast.net/~donwillson/tech_info.html __________________ Tek-Emo Villis Emo Bis V70 SE NAV 1.6 D2 2015MY POWERSHIFT, D4162T, 93000miles, RED. /VOL FCR/PEPER OBD2/Acron 9135 OBD2/L.E.D Flasher/VDASH/ANCEL BA301/Topdon Top Scan

Sep 11th, 2010, 12:26	#4
Chris_Rogers VOC Member Last Online: Apr 10th, 2017 16:55 Join Date: Jan 1970 Location: South Kent Coast	Hunting idle & cruise not working suggests ETM.

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