Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: SteveB on 31 December 2007, 23:01:25

Title: New Engine
Post by: SteveB on 31 December 2007, 23:01:25
[size=14] ::)Hi
I have just fitted a replacement engine in my 2001 2.5 cdx. All the sensors, wiring loom, diss unit etc fitted from original engine. Replacement purchased from a reputable salvage dealer with guarentee. Inspected car the engine came from (1999).

The problem is it will not start. The engine turns over no problem, there is fuel, pulled a plug lead and there was no spark.
Could it be the alarm/ immobiliser or something completely different.
I have been playing with these cars for years and done a number of engine transplants but never had this problem before.[/size] ::)

Cheers

SB
Title: Re: New Engine
Post by: tunnie on 31 December 2007, 23:27:25
have you done a paperclip test? the replacement engine may have a duff crank sensor.

read the codes, if you get a 19, thats your problem  :y
Title: Re: New Engine
Post by: TheBoy on 01 January 2008, 10:51:32
did you change the ecu, if so, is the eml flashing (assuming bulb works) - immobiliser is coded to ecu
Title: Re: New Engine
Post by: SteveB on 01 January 2008, 14:04:14
Hi
The ecu is the original one never had to change one before with an engine change.
Have done the paper clip test and the results are
12
12
12
144
144
144
31
31
31
Each set of numbers came up three times per rotation.
When the light flashed four times there was a pause and then another four.
is the result 144 or 18 ?

Cheers

SB ::)
Title: Re: New Engine
Post by: TheBoy on 01 January 2008, 15:12:22
144 is immobiliser realted.  Is the EML flashing when you turn ign on
Title: Re: New Engine
Post by: Andy B on 01 January 2008, 17:23:25
Have you been opening up keys? That's how I'd managed to lose the transponder chip from one of my keys. Which was another reason I couldn't get it to satrt.  :-[
Title: Re: New Engine
Post by: SteveB on 01 January 2008, 19:20:45
Hi Thanks for the reply's.
No the EML does not flash and no I have not had the key apart.

Cheers

Steve ::)
Title: Re: New Engine
Post by: mick-1975 on 03 January 2008, 18:47:03
hi  i had the same problem  i had a 1996 n.reg engine went
  changed it not a problem but like u said would not start.

 anyway phoned vauxhall and they said the engine
i had brought was slightly different with the oil pick up
and different timings for the sensor,s .
 had 2 get another engine then spot on..

 hope you get it sorted
mick
 :y
Title: Re: New Engine
Post by: SteveB on 04 January 2008, 13:52:49
Hi
Have spoken to Vauxhall and they have told me that it is an imobiliser problem they think??
Title: Re: New Engine
Post by: Marks DTM Calib on 04 January 2008, 13:59:54
I assume you have used the original ECU, immobiliser and key.....in which case it cant be.

Title: Re: New Engine
Post by: SteveB on 04 January 2008, 14:12:12
Hi
As I do not know the year of the new engine I have used all the original sensors ECU etc. the only thing changed was the basic engine.
Title: Re: New Engine
Post by: Marks DTM Calib on 04 January 2008, 14:13:33
Its not immobliser then.....I assume the obvious has been checked....all connections, spark plug leads in the right holes on the dis pack, all supplys connected up......the three earths on the back of the 2-4-6 head connected.....
Title: Re: New Engine
Post by: JamesV6CDX on 04 January 2008, 14:22:05
I had the same issue when I transplanted a 2.0 engine once.

Turns out, after a LOT of faff,  that the transponder had fallen outta the key!!

Title: Re: New Engine
Post by: Andy B on 04 January 2008, 17:04:07
Quote
I had the same issue when I transplanted a 2.0 engine once.

Turns out, after a LOT of faff,  that the transponder had fallen outta the key!!


Re what I posted before. I'd got my shed running but when I was persuading the 'new' gearbox in, as I was sat on the floor I found a chip.  :-?
Title: Re: New Engine
Post by: SteveB on 07 January 2008, 09:53:34
Hi
Is there anyone out there with software to reset the electronics on the car. I have a laptop and connecting lead.
If not doe s anyone know where I can get it looked at other than a dealer. :-/

Cheers

Steve
Title: Re: New Engine
Post by: TheBoy on 07 January 2008, 10:04:48
Quote
Hi
Is there anyone out there with software to reset the electronics on the car. I have a laptop and connecting lead.
If not doe s anyone know where I can get it looked at other than a dealer. :-/

Cheers

Steve
The electrics 'reset' themselves.