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        General >> Problems >> holds back
        
(Message started by: dave19 on Feb 29^th, 2008, 4:17pm)

Title: holds back
Post by dave19 on Feb 29^th, 2008, 4:17pm

hi all, put new plugs .coilpacks, renewed wiring. temp sender, on my 96, 2.0l dohc,problem is it ticks over brill,if i build up revs steady brill ,its when i come to drive its like holding back underload,had emissions done all ok lamba sensor ok can anybody help its just a mystery now,cheers dave

Title: Re: holds back
Post by harry.m1byt on Feb 29^th, 2008, 6:27pm

Just a guess...

Have you checked the fuel filter?

Title: Re: holds back
Post by cueball57 on Feb 29^th, 2008, 6:31pm

It could be the Brakes binding i had that with my 2.9 12v

Title: Re: holds back
Post by TiberiuS on Feb 29^th, 2008, 11:17pm

Misfire of some kind maybe? Could be a million things, would help to have a bit more info like how was it running before etc.

Holding back under load? Again, is it a kind of misfire, hesitation or just listless?

What was the lambda value on the MOT?

Had any OBD codes read yet? If it's a fuel issue it'll be running lean and that'll show on the OBD :).

Regards, Bruce.

Title: Re: holds back
Post by dave19 on Mar 2^nd, 2008, 12:31pm

hi bruce, its fine on tick over, but its hesitating while driving normal not a lot but you can feel it,as a kind of holding back,lamba value was1.o1, co level0.03. c02 level 15.35%vol. 02 level0.18%. oil temp 11 degrees cent. hc level15ppm, cheers dave.

Title: Re: holds back
Post by jonnycab on Mar 3^rd, 2008, 1:28am

You said that you replaced the coil packs.... were they new ones or second hand ?

Also......did you replace the two HT plug leads as well ? :)

Title: Re: holds back
Post by TiberiuS on Mar 3^rd, 2008, 10:57pm

Was it an entire new engine loom? Double check everything is connected ok, worth pulling the plugs and putting them back snug just to make sure. Also double check coilpacks as Jonny said, the windings sometimes break down under load and cause a misfire. Could even possibly be a lazy injector, mine used to have a bad misfire if left standing for a week, never solved it but with hindsight I reckon it was a sticking injector pintle that freed up when hot.

How was it running before the work? An OBD scan would be the best thing now, you really need some fuel trims and things, you're working blind without any info from the engine, you could replace half the d**n engine and still have the problem :(

Good luck.