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Author Topic: OMEGA 2.2 - WON'T START  (Read 11976 times)

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Doctor Gollum

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Re: OMEGA 2.2 - WON'T START
« Reply #15 on: 10 January 2017, 20:56:55 »
Hopefully that will see it back on the road :y

It's always tricky trying to diagnose things remotely,  and being 12 hours flying from most of the people here really doesn't help...

A thought has just flashed through my mind... (it's ok, I am sitting down ::))

Was it the ecu coolant sensor that raised the code?

If yes, was the correct plug attached? When changing the loom on my 3.2, I managed to confuse the purge valve plug with the ecu temp sender... plugs are the same and close to each other... but they use different voltages... ecu sensor runs at 5v, not 12v so get it wrong and it fries the ecu temp sensor.

Net result is that car starts perfectly when cold, (it was February here when I did this), but once warm it floods as the ecu thinks that it's -40°C and that's it, game over until the battery goes flat.

So couple of things to test...

1. Ecu temp sensor loom voltage... 5v.
2. Check the plugs for any wetness following a start attempt.

What ever you do, don't try to force it to fire with Ezy Start, parafin etc... will do far more harm than good ;)
« Last Edit: 10 January 2017, 21:06:47 by Doctor Gollum »
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Marne

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Re: OMEGA 2.2 - WON'T START
« Reply #16 on: 11 January 2017, 13:46:37 »
Thanx for the tip man... I will double check again.  The thing a out the temp sensor was just because of the plug not clicking tight onto the sensor resulting in the error code...

Perhaps the other thing worth noting is that there code reader mentioned that the injection relay is inactive... Could it be anything else apart from the crank sensor?
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Marne

Doctor Gollum

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Re: OMEGA 2.2 - WON'T START
« Reply #17 on: 11 January 2017, 14:00:55 »
Either one of the two purple relays next to the ecu...

Swap them and see if the pump still primes...

If it doesn't then you've found your problem ;)
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zirk

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Re: OMEGA 2.2 - WON'T START
« Reply #18 on: 11 January 2017, 14:39:58 »
Also worth checking / swapping Cam Sensor.

Never had a 2.2, but if its the Double Plug Engine ECU, did you connect the external black Earth wire to the ECU?
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windhoek_boy

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Re: OMEGA 2.2 - WON'T START
« Reply #19 on: 13 January 2017, 15:02:54 »
Hi all. Thanks for the input .much appreciated.  :)

We will try to also swap Cam Sensor you guys suggested.

In the meantime we ordered a new Crankshaft Sensor from nearby South Africa, they have better options there (ordering and availability) than Namibia. We have 2.5 million people here  :) therefore Omega is a rare sight.

GM South Africa wants R2.125.00 (Rands) more or less = £129.00

Dealership is really ridiculous...

Cranksensor might be shipped on Monday overnight to Namibia (Up the road from the South Africa).

We will sure give feedback. 
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Doctor Gollum

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Re: OMEGA 2.2 - WON'T START
« Reply #20 on: 13 January 2017, 19:24:14 »
Have you swapped the purple relays yet?
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windhoek_boy

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Re: OMEGA 2.2 - WON'T START
« Reply #21 on: 20 January 2017, 07:26:15 »
Just to give feedback to you all.

NO. JOY.  :(

Got a new crankshaft sensor which was the right fit as it was sourced by part number ( I think it is from Standard). Still car would not start.

Mech thinks it must be a very small issue we just can't figure out because all big things we thought were the cause are working just fine.

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Doctor Gollum

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Re: OMEGA 2.2 - WON'T START
« Reply #22 on: 20 January 2017, 08:16:15 »
Quote from: Doctor Gollum on 13 January 2017, 19:24:14
Have you swapped the purple relays yet?
...
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windhoek_boy

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Re: OMEGA 2.2 - WON'T START
« Reply #23 on: 21 January 2017, 22:33:41 »
Quote from: Doctor Gollum on 20 January 2017, 08:16:15
Quote from: Doctor Gollum on 13 January 2017, 19:24:14
Have you swapped the purple relays yet?
...

Yes we did and there is still nothing at all
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Doctor Gollum

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Re: OMEGA 2.2 - WON'T START
« Reply #24 on: 21 January 2017, 23:01:12 »
Quote from: windhoek_boy on 21 January 2017, 22:33:41
Quote from: Doctor Gollum on 20 January 2017, 08:16:15
Quote from: Doctor Gollum on 13 January 2017, 19:24:14
Have you swapped the purple relays yet?
...

Yes we did and there is still nothing at all
1. Simply swapped over or 2. swapped with ones from donor car?

If 1. then do you still have fuel pressure, if not, only switch out the fuel pump relay.

If 2. and it still primes, then only switch the injector relay.

Repeat until it fires... the relays are identical, but it only takes one to stop the car running as one switches the fuel pump feed, and the other switches the injector feed. The ecu wiring to the injectors is simply to fire them, power comes from the relay :y
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windhoek_boy

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Re: OMEGA 2.2 - WON'T START
« Reply #25 on: 22 January 2017, 14:47:30 »
Quote from: Doctor Gollum on 21 January 2017, 23:01:12
Quote from: windhoek_boy on 21 January 2017, 22:33:41
Quote from: Doctor Gollum on 20 January 2017, 08:16:15
Quote from: Doctor Gollum on 13 January 2017, 19:24:14
Have you swapped the purple relays yet?
...

Yes we did and there is still nothing at all
1. Simply swapped over or 2. swapped with ones from donor car?

If 1. then do you still have fuel pressure, if not, only switch out the fuel pump relay.

If 2. and it still primes, then only switch the injector relay.

Repeat until it fires... the relays are identical, but it only takes one to stop the car running as one switches the fuel pump feed, and the other switches the injector feed. The ecu wiring to the injectors is simply to fire them, power comes from the relay :y

Will try that and give feed back
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windhoek_boy

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Re: OMEGA 2.2 - WON'T START
« Reply #26 on: 01 February 2017, 14:14:18 »
Just another update concerning the Omega that wont start

The coil and the injectors and we also just found out throttle body are all not responding. is it normal for throttle body to just be quiet (no action) after cranking once?

...car has no spark still no spark still.

Mechanic insists he has checked all wiring inside engine bay and all electrical wiring is working.

 :(
« Last Edit: 01 February 2017, 14:29:36 by windhoek_boy »
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plym ian

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Re: OMEGA 2.2 - WON'T START
« Reply #27 on: 16 February 2017, 10:10:39 »
Quote from: windhoek_boy on 01 February 2017, 14:14:18
Just another update concerning the Omega that wont start

The coil and the injectors and we also just found out throttle body are all not responding. is it normal for throttle body to just be quiet (no action) after cranking once?

...car has no spark still no spark still.

Mechanic insists he has checked all wiring inside engine bay and all electrical wiring is working.

 :(
Have you tried the coil pack?
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windhoek_boy

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Re: OMEGA 2.2 - WON'T START
« Reply #28 on: 01 May 2017, 17:51:40 »
Hi Everyone.  :) Feedback on this original starting post - OPEL OMEGA 2.2 NOT STARTING

HOW WE SOLVED IT

Cam Sensor &  Crank Sensor connectors were connected vice versa. We switcheed it back correctly and car started without hesistation. The connectors on these 2 sensors on my Omega are exactly the same with 3 pins and same color orange. Could any color coding be helpful? so the whole time they were connected wrongly. ::)

Thank guys for all the input
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John-Ha

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Re: OMEGA 2.2 - WON'T START
« Reply #29 on: 13 September 2017, 18:13:49 »
You are not alone.

It reminds me of a time many years ago - it was a friend's Standard Companion.  It needed a new clutch ... which meant you had to take the engine out ... which meant you had to drop the front suspension.  My friend was going away, but needed the car on his return so two of us said we would do it for him and, as the engine was out, we might as well get it re-bored.

We put it all back together and couldn't turn it over.  We knew it would be a bit stiff so eventually we tried towing it round the block.  The clutch was perfect but each time we released it the rear wheels skidded - they just would not turn.  We tried in reverse - same result.  It would go a bit forwards and then a bit backwards but it always locked solid.

After much head scratching we decided there was no option but to take the d*mn thing apart again.

We had put the con rods on the crankshaft back to front and they were doing half a turn and then fouling the crankcase  :(
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