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Author Topic: HELP please!! Possible ECU fault?  (Read 2092 times)

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eliteomegaman

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HELP please!! Possible ECU fault?
« on: 30 March 2010, 19:12:30 »
I'm a newbie but u were too at the beginning!
Have BIG problems with my Omega 2.5 facelift model yr 2000. Have misfiring issue  :-? -
Coil pack replaced but problem not cured
Crank shaft sensor replaced but still problem not cured
Tech device plugged in & fault code showing 'ECU'
All the above done by my trusty mechanic cos i'm thick :-[
Have spotted an identical ECU on ebay from same car, same yr & more importantly same Bosch No. & Vauxhall No.  :y
Just been told by a Vauxhall mechanic that there should be no problems BUT once fitted the car won't start unless i also get the 'immobiliser' pack with chip for key  :-/
So, sorry to have taken forever to get to my point! but IF i need the 2 items where abouts does the immobiliser thing go in the engine bay (i know where to put the ecu).
Any help appreciated  :'(
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tunnie

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Re: HELP please!! Possible ECU fault?
« Reply #1 on: 30 March 2010, 19:15:38 »
welcome, can you get your 'trusty' mechanic, to post all fault codes being read  :y
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jonathanh

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Re: HELP please!! Possible ECU fault?
« Reply #2 on: 30 March 2010, 21:12:47 »
and you don't even need to visit your mechanic for faulk codes.  provided you have a 2.5 (not 2.6) you can flash them out with a paperclip - see paperclip test on here somewhere - i can never find the link!
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Entwood

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Re: HELP please!! Possible ECU fault?
« Reply #3 on: 30 March 2010, 21:17:09 »
Quote
and you don't even need to visit your mechanic for faulk codes.  provided you have a 2.5 (not 2.6) you can flash them out with a paperclip - see paperclip test on here somewhere - i can never find the link!

and if it IS a 2.6 use the "pedal trick"

http://www.omegaowners.com/forum/YaBB.pl?num=1189022687

:)
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Elite Pete

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Re: HELP please!! Possible ECU fault?
« Reply #4 on: 30 March 2010, 21:17:41 »
Hi and welcome to the forum.
Cant see it being your ECU. Do a paperclip test and post the codes up.

http://www.omegaowners.com/forum/YaBB.pl?num=1189022687
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Zuffenhausen

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Re: HELP please!! Possible ECU fault?
« Reply #5 on: 30 March 2010, 21:18:16 »
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Zuffenhausen

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Re: HELP please!! Possible ECU fault?
« Reply #6 on: 30 March 2010, 21:18:53 »
Pete your quicer than me ;)
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MutantCav

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Re: HELP please!! Possible ECU fault?
« Reply #7 on: 30 March 2010, 21:20:33 »
I sense a degree of warranted sarcasm in Tunnie's reply...VERY unlikely to be the ECU and sounds a lot like your trusty mechanic is just guessing

As said...do the paperclip test and report back the codes :y Its very easy to do
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eliteomegaman

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Re: HELP please!! Possible ECU fault?
« Reply #8 on: 31 March 2010, 16:46:04 »
 :o WOW!! Did the paper clip test & u've got to realise that i lead a very sad life so have to say that that test was better than having sex  :P!!!!
Anyway back to being sensible. Ok the 2 codes that came up were -
12 - diagnostic check
31 - No RPM
Then i turned the engine on (V6) as advised & the only code showing was -
12 - diagnostic check!!
So now i know, as most of u guessed  :y that its NOT the ECU, thanks for that.
So now my problem reverts back to my original query -
The engine is misfiring! :-/
Coil pack replaced & crank shaft sensor replaced but still misfiring!
I'd pull my hair out if i had any!!   >:(
Can anyone come up with a solution?
Only thing thats NOT been done is the changing of the spark plugs & leads - cud that help? (sorry not mechanically minded!)
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henryd

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Re: HELP please!! Possible ECU fault?
« Reply #9 on: 31 March 2010, 16:49:25 »
plugs/leads could cause your problem as could spark plugs wells being full of oil due to leaking cam cover seals
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tunnie

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Re: HELP please!! Possible ECU fault?
« Reply #10 on: 31 March 2010, 16:50:17 »
12 & 31 are normal, 12 is the start, 31 is there because the engine is not running  :)

Back to basics, check the plug wells for water / oil, and check the condition of the spark plugs themselves, any idea when they were last changed?
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CaptainZok

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Re: HELP please!! Possible ECU fault?
« Reply #11 on: 31 March 2010, 17:39:00 »
If you want to bring it over Halliwell I'll get the apprentice to cast an eye over it for you mate.
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eliteomegaman

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Re: HELP please!! Possible ECU fault?
« Reply #12 on: 31 March 2010, 17:43:06 »
Only just bought the car but according to the service book its not been serviced for a while  :'(
I'll take your advice & start from scratch, spark plugs etc
Cheers for that, much appreciated :y
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eliteomegaman

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Re: HELP please!! Possible ECU fault?
« Reply #13 on: 31 March 2010, 17:46:09 »
Cheers CaptainZok  :y
How much??
Or how about us swopping cars ........
I don't mind honestly  ;D
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CaptainZok

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Re: HELP please!! Possible ECU fault?
« Reply #14 on: 31 March 2010, 17:59:37 »
You have a PM.
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