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Author Topic: OMEGA 2.2 - WON'T START  (Read 1640 times)

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windhoek_boy

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OMEGA 2.2 - WON'T START
« on: 08 January 2017, 18:35:52 »

Hi guys. I done. Really. I'm even trying to see if it is still worth the trouble of trying to revive Omega 2.2 16v (2002 Model)

We moved this engine from my other identical Omega and put it and engine started without a miss on first start, 5 months ago and it been running well.

Issue is car had a mechanical fault after not getting enough oil because we nodifed an oil pump which was not original. In the end Oil pump was replaced and crankshaft was redone and also 1 conrod. Mechanic put the whole engine together again best as he knows how (my usual mechanic who also owns a Omega 2.6 v6).

PROBLEM: After all put together car won't start. Stick in a Code Reader and it found coolant temperature sensor not connected. We reconnected it and error was cleared. No other errors found as far as engine is concerned. Reader reported error communicating with gearbox. Which we don't think is really problem why it is not starting. We have tried to trouble shoot and check all relays, injectors, coil, computer box and all. We even have swapped crank sensors, computer boxes, coils since we have spare parts but we cant figure it out. Everything looks normal and works well. But only problem is when you try to start it will crank forever and never start. We are sure it is not getting a Spark on the plugs but the cause of that we can't get to the bottom of it.

We just thinking there is an electrical problem somewhere. maybe wires were pulled and somewhere we cant get to figure out which one.

ANY IDEAS  :'(

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Doctor Gollum

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Re: OMEGA 2.2 - WON'T START
« Reply #1 on: 08 January 2017, 20:11:51 »

Did you swap the ecu from the donor car?
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windhoek_boy

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Re: OMEGA 2.2 - WON'T START
« Reply #2 on: 09 January 2017, 10:12:26 »

Did you swap the ecu from the donor car?

Yes we did and made sure all things match. We marked them so we would not get them all mixed up
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Re: OMEGA 2.2 - WON'T START
« Reply #3 on: 09 January 2017, 19:48:50 »

How much fuel in it?

Double check everything and report back ;)
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windhoek_boy

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Re: OMEGA 2.2 - WON'T START
« Reply #4 on: 09 January 2017, 20:16:43 »

How much fuel in it?

Double check everything and report back ;)

OK there is some fuel in the car. But however we will add just to be on the safe side.

The car is priming properly with enough fuel.

But if you wait  a few seconds, after priming, try to crank it, then there is no fuel coming + no spark.

I hope that i explained it properly :)

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windhoek_boy

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Re: OMEGA 2.2 - WON'T START
« Reply #5 on: 09 January 2017, 20:29:59 »

Just a thought...

What is the standard resistance of the crank sensor and the CAM shaft Sensor?

Could it also be the Cam Sensor?

Is there any way of getting the electrical diagram for Omega 2.2 apart from those available for the Pre-Face Lift Omega from Haynes Manual?



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Nick W

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Re: OMEGA 2.2 - WON'T START
« Reply #6 on: 09 January 2017, 20:56:53 »

How much fuel in it?

Double check everything and report back ;)

OK there is some fuel in the car. But however we will add just to be on the safe side.

The car is priming properly with enough fuel.

But if you wait  a few seconds, after priming, try to crank it, then there is no fuel coming + no spark.

I hope that i explained it properly :)


That is almost certainly an immobiliser problem. Don't forget that the engine ECU, chip in the key and the reader around the ignition lock are a matched set.
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windhoek_boy

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Re: OMEGA 2.2 - WON'T START
« Reply #7 on: 09 January 2017, 21:08:42 »

How much fuel in it?

Double check everything and report back ;)

OK there is some fuel in the car. But however we will add just to be on the safe side.

The car is priming properly with enough fuel.

But if you wait  a few seconds, after priming, try to crank it, then there is no fuel coming + no spark.

I hope that i explained it properly :)


That is almost certainly an immobilizer problem. Don't forget that the engine ECU, chip in the key and the reader around the ignition lock are a matched set.

Most Certainly it is not immobilizer issue. Because - long before we did our engine transfers and discarded one of the Omegas, we labelled Our ECU, Keys and Key Reader to make sure the 2 Sets were not mixed up. Before engine overhaul was done and refusal to start problem, we even tested each set separately on the one running car thus proving we have working spare Set. Besides if you mix them up the spanner will blink on Dashboard.
« Last Edit: 09 January 2017, 21:12:31 by windhoek_boy »
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Re: OMEGA 2.2 - WON'T START
« Reply #8 on: 10 January 2017, 00:22:31 »

For trouble shooting purposes, Haynes 2.0 16V diagrams will be OK.

Was the donor the same model year?
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windhoek_boy

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Re: OMEGA 2.2 - WON'T START
« Reply #9 on: 10 January 2017, 12:56:05 »

For trouble shooting purposes, Haynes 2.0 16V diagrams will be OK.

Was the donor the same model year?

YES. both scraped Omega and the patient are 2.2 16v Auto. identical i think.
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GrahamT

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Re: OMEGA 2.2 - WON'T START
« Reply #10 on: 10 January 2017, 13:04:00 »

If the issue is no spark but you are getting no error codes have you checked the simple things like you are getting a switched live to the coil pack?

I had this issue when I did my first X20XEV conversion into an astra. I forgot the black switched live in the round multi plug and got exactly the same symptoms you describe.

Thanks
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Re: OMEGA 2.2 - WON'T START
« Reply #11 on: 10 January 2017, 14:14:43 »

I know it sounds stupid, but it is in park/neutral and gearbox wiring securely plugged in?
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Re: OMEGA 2.2 - WON'T START
« Reply #12 on: 10 January 2017, 14:27:57 »

I know it sounds stupid, but it is in park/neutral and gearbox wiring securely plugged in?
I *think* (without looking) that kills power to starter, rather than stopping a cranking engine firing.


OP - what code reader are you using, as 2.2 can be fussy.
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Re: OMEGA 2.2 - WON'T START
« Reply #13 on: 10 January 2017, 14:37:17 »

I know it sounds stupid, but it is in park/neutral and gearbox wiring securely plugged in?
I *think* (without looking) that kills power to starter, rather than stopping a cranking engine firing.


OP - what code reader are you using, as 2.2 can be fussy.
It does, the no crank/no fuel is normal behaviour, but if the shift linkage is out of whack it might not behave rationally  :-\
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Marne

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Re: OMEGA 2.2 - WON'T START
« Reply #14 on: 10 January 2017, 20:47:18 »

Hallo guys... I am the mechanic working on the this particular car.
I just re-ran tests  on the car and I believe it is the crank sensor...

Actually I replaced the original sensor with a second hand sensor I had. We will have buy a new sensor and then we will let everyone know the outcome.   :y
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