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1

Omega General Help / Re: injector immediately open when ignition on

« on: 20 June 2008, 13:27:38 »

Not too bad buddy £112 for the ecu including vat and carriage and £80 diagnostics/labour . Could have been much worse
Cheers Steve

2

Omega General Help / Re: injector immediately open when ignition on

« on: 20 June 2008, 10:37:56 »

Hi eveeryone just a short note to say thanks to all who suggested possible cures for this problem . It was traced to number 5 injector opening as soon as the ignition was turned on . An internal ecu fault with the injector driver . Now cured with 2nd hand ecu car runs superbly .
All the best thanks again Steve  

3

Omega General Help / Re: injector immediately open when ignition on

« on: 28 May 2008, 16:58:42 »

Thank you for that if I get offered a second hand one will try to ensure it comes with transponder and key chip . Otherwise a reprogramme via tech 2
Kevin you mention changing the injector drive chip is that something that can be done easily enough . It sounds like you have experience of this job and would a driver chip from a similar if not identical part number ecu do the job ?
Thanks guys sorry to be a pain do appreciate the help though
Cheers Steve  

4

Omega General Help / Re: injector immediately open when ignition on

« on: 28 May 2008, 15:05:10 »

Just got off the phone from them helpfull guys but I'm going to be looking at £295 to repair which is a little steep compared to a secondhand part if I can find one .
As you said very helpfull though
Cheers Steve

5

Omega General Help / Re: injector immediately open when ignition on

« on: 28 May 2008, 14:48:39 »

To all who have posted advice and suggestions thank you very much the wiring checks out and it would seem that an injector driver has failed in the ecu . I will try the phone number supplied for repair of the ecu but am somewhat fearfull of the cost involved . I have trade acounts at several local motor factors and the cost via their people was horrendous .
Did try to post a wanted but ran into the 250 posts problem which seems to affect a number of people when new to the site . I can follow the reasoning behind it though .
Dont suppose anyone has a bosch motronic 90457097  0261203270/271 transponder and chip they wish to sell.
If this breaks the rules I apologise bit desperate to get my car sorted
Cheers guys Steve

6

Omega General Help / Re: injector immediately open when ignition on

« on: 27 May 2008, 15:53:53 »

Thank you folks have spoken with my chap he's done the tests on wiring as suggested and the wiring is fine hence your suggestion that the driver has failed seems to make perfect sense . Am looking for a correct second hand ecu currently as well as enquiring about repair to the existing ecu .
Thanks Steve

7

Omega General Help / injector immediately open when ignition on

« on: 27 May 2008, 08:59:35 »

Hi there ,have been trying to sort out a sick 1996 omega estate 2.5 v6 which seemed to have all the symptoms of plug/leads/dis missfire .have checked though and found that as soon as the ignition is switched on one of the injectors is immediately open and allowing fuel through at an alarming rate . this seems to account for the poor running missfire and huge amounts of smoke/fuel in exhaust. Has anyone else encountered this before ? also as my mechanic friend feels that the problem seems internal to the ecu if I can source one to fit my car will I need additional parts like the key chip / transponder for immobiliser in order for the car to be started after ecu change ?
Did think that there was a wiring issue like the injector wiring was earthing on the one at fault but think he has checked the wiring continuity and this seems fine hence the belief that its an ecu issue that we are looking at .
Can anyone help please ?
Cheers guys Steve

8

Omega General Help / Re: missfire and enormous smoke

« on: 09 May 2008, 13:51:10 »

Thanks for sparing the time to consider this problem folks . The eml comes on and goes out as it should so no trickiness regarding that has been done . Will run the paperclip test as soon as I can and without electrocuting myself figure out which cylinder is down change the spark plug and lead on that one before moving to the DIS unit which I understand to be a bastard to get at / change . Thats assuming the paperclip test doesn't show a code that pinpoints something else
Really appreciate everyones help on this .
I love the car its 80000 miles one doctor owner and has a full history together with near mint body and interior so if I can fix this fault I'm going to be loving using it as a family estate .
Will keep you posted thanks again
Steve

9

Omega General Help / thank you

« on: 09 May 2008, 09:28:22 »

thanks for that I will run the diag paperclip test first and go with the simple stuff plugs leads and dis unit first as you suggest . It seemed a lot of smoke and a lot of fuel prescent at the back box I didn;t know if this was common when a missfire fault developed . The miss is completely across the range so nothing being injected into whichever cylinder is the culprit is being burnt . I guess these cars like a drop of fuel so the unburnt in the exhaust is probably consistant with this .
Thanks for taking the time to reply will go in the direction you suggest.
All the best Steve

10

Omega General Help / Re: missfire and enormous smoke

« on: 08 May 2008, 20:19:15 »

Thanks guys not driving it currently the smoke is from the exhaust I guess in the form of unburnt or part burnt fuel smoke wondered if this was symptomatic of the electrical missfire topic that features large here or whether the excessive smoke was pointing to something else . Should I be looking towards an injector and fuel problem . I guess the question would be given the symptoms where should I start ?
Thanks all Steve  

11

Omega General Help / missfire and enormous smoke

« on: 08 May 2008, 10:46:48 »

Hi everyone I'm at a bit of a loss with my 1996 P v6 tourer . Just bought the car and did so knowing that it had a missfire problem . Read a lot of the posts and great advice that I saw here and felt pretty confident that I would know what to check/ do . I still need to run the paper clip test and make absolutely certain that there is no oil in plug holes . However there visually appears no leaks at all from the rocker cover gaskets and the engine seems mint clean and has covered 80000 miles .
What is concerning is the amounts of unburnt fuel coming out of the exhaust I put my finger in the end of the exhaust and what I found was neat petrol also the amounts of smoke when the car is running is beyond a joke .I was hoping that someone had encountered similar or maybe this smoking is a normal symptom of a spark plug / leads / dis unit problem .
I absolutely love the feel of the car and its all round in excellent condition so to cure this is high priority .
A mechanic friend also suggested an injector problem perhaps just hosing fuel into the cylinder or cylinders as the car smells like an arabian oil field and the volume in the exhaust of unburnt fuel
If someone could help I would be very grateful
Cheers guys all the best Steve