Omega Owners Forum

Chat Area => General Car Chat => Topic started by: irratic on 25 June 2012, 20:25:26

Title: Astra misfire on no 2 sparkplug
Post by: irratic on 25 June 2012, 20:25:26

Hi folks , really hoping for some guidance ..
Astra G . 1.4 .. Misfiring on second cylinder ... Changed coilpack and tested it on another car .. Changed plugs ... Still misfire on second cylinder ... Plug getting damp ... Turned over with coilpack out and plugs in .. No spark at no2 ... Now the only thing I can think it is is the ECM/ecu ... Dodgy tech2 read says wiring to no2 coilpack ... Any ideas ? Cheers

Title: Re: Astra misfire on no 2 sparkplug
Post by: JamesV6CDX on 25 June 2012, 20:49:27

Any codes?

Compression readings?

:y

Title: Re: Astra misfire on no 2 sparkplug
Post by: irratic on 25 June 2012, 20:59:52

Can remember readings but compression was good on all 4 cylinders and prety much all the same ... Code reading was done with pedal method and that Hungarian tech 2 and both came up with the same code .... 352 I think ... Which turned out to be wiring to or from no2 coil ... No breaks in wires as checked continuity from the coil pack plug to the ecu plug ... Can another sensor kill the feed ? Egr valve faulty or something ? Cheers

Title: Re: Astra misfire on no 2 sparkplug
Post by: henryd on 25 June 2012, 21:01:54

If that Astra has its ecu fixed to the back of the engine then yes they do play up giving the symptoms that you are having,if you try and wiggle the wiring plugs when its running it may come back to life briefly,ECUtesting.com or bbareman can sort them :y

Title: Re: Astra misfire on no 2 sparkplug
Post by: irratic on 25 June 2012, 21:34:47

Thanks , I was hoping it would be something easier ... It's an old car for my son so didn't want spend too much on it .
Thanks for all your help

Title: Re: Astra misfire on no 2 sparkplug
Post by: henryd on 25 June 2012, 21:38:29

I don't think it costs a fortune to sort out,a friend had one done at a company in plymouth for around 100 notes

Title: Re: Astra misfire on no 2 sparkplug
Post by: irratic on 26 June 2012, 17:46:08

another question as iv rang around for a second hand unit.. iv been told that the numbers on the ecu make no difference so long as it comes from a z14 engine with air con..??? is this correct ??