Advice required about ECU

**Kyser143** · 10th October 2010, 21:08

First of all the pics identical to my car but have used it from another thread as it explains what I need to know in the pic.

I have a Vec C Sri 1.8 LPG 2003 and I have had a recent problem where cylinder 1 is not firing and appears to be on the gas rather than the petrol. I have had vx check it out and they say its a wiring fault and a auto technician has finally diagnosed the fault on one of the pins on the ECU for cylinder one not working. Hence its a new ECU for me.

I want to source one from ebay or scrap and the ECU not working is number 2 in pic its the the pin on the wiring block on the right of the two block in centre. my questions are:

1) Is ECU 2 in pic the main engine ECU and does this also need to be tech2`d of the donating car and tech2`d into mine
2) Is this ECU only in lpg vehicles eg is it different to petrol vehicles as i believe the block with the faulty pin goes into the lpg ECU near the battery as in pic.
3) Do I even need a new ECU or i have some companies on the net that refurb/fix your faulty one??

Any help appreciated.

**Paulrushton** · 10th October 2010, 21:36

Try ecu doctor on Internet. We used them a few years ago and were really good. Brilliant service and reasonable price.

**Paulrushton** · 10th October 2010, 21:39

http://www.the-ecu-doctor.co.uk/

£120 to diagnose and rebuild.

**Kyser143** · 10th October 2010, 21:42

Originally Posted by Paulrushton

http://www.the-ecu-doctor.co.uk/

£120 to diagnose and rebuild.

Cheers that might come in handy mate. saves buying a new one at vx prices...anyone able to help abt the other questions?

**Kyser143** · 11th October 2010, 08:34

Morning bump anyone able to assist with my problem in particular Q1 & Q2

**Kyser143** · 31st October 2010, 15:31

Anyone with some knowledge of LPG ECU`s able to assist...I am trying to find a suitable ECU as mine has a fault not firing cylinder 1. anyway the problem is pinpointed to ECU no.2 in the pic above. But someone tells me this is actually a plug and Play ECU for LPG and hence I dont actually need a engine ECU. Does this mean any LPG ECU (no. 2 in pic) can be removed from another Vectra C lpg car and used as plug and play no need for tech 2 etc etc ...I have found a Vec C LPG in a breakers yard so if anyone can help will be much appreciated...sick of car being in limp mode..already spent £300 and still the same.

**plasma** · 31st October 2010, 16:51

Sorry cant help on this problem. I'll try to think of someone who has an LPG veccy and ask them...

**Kyser143** · 31st October 2010, 22:42

Originally Posted by plasma

Sorry cant help on this problem. I'll try to think of someone who has an LPG veccy and ask them...

Thanks Plasma anyone with an lpg vectra that knows answer please do let me know...pic of actual part (lpg plug and play ecu attached)

**Kyser143** · 4th November 2010, 23:43

In case it helps anyone millbrook have confirmed that the item numbered 2 on the above pic is not an ECU and a plug and play module that connects the gas and petrol.