Ecu damaged?

Gazza36 · Apr 30, 2013

Hi, whilst gaining access to the glow plug relay so that I could obtain the part number, the ecu touched the positive terminal of the battery, now the glow plug light doesn't come on at all, have I knackered the ecu or relay or both? Any help greatly appreciated.

Datatek · Apr 30, 2013

Gazza36 said:
Hi, whilst gaining access to the glow plug relay so that I could obtain the part number, the ecu touched the positive terminal of the battery, now the glow plug light doesn't come on at all, have I knackered the ecu or relay or both? Any help greatly appreciated.

Most likely

Gazza36 · Apr 30, 2013

Datatek said:
Most likely

Ok cool.

Gazza36 · May 1, 2013

Ok so before I buy a new ecu and/or relay is there any way of confirming which one is shot, I've no idea how to test a relay, the ironic thing is that the glow relay probably was ok, the low voltage at the plugs was maybe because the battery was low because the rf receiver has been going absolutely crazy recently, indicators flashing regularly like some sort of rave pardon the pun. I am at your mercy lol.

Datatek · May 1, 2013

Gazza36 said:
Ok so before I buy a new ecu and/or relay is there any way of confirming which one is shot, I've no idea how to test a relay, the ironic thing is that the glow relay probably was ok, the low voltage at the plugs was maybe because the battery was low because the rf receiver has been going absolutely crazy recently, indicators flashing regularly like some sort of rave pardon the pun. I am at your mercy lol.

Connect it all back up, give it a squirt of easy start and see if it will run. It should start without the glowplugs with easy start. Otherwise diagnostics.

Gazza36 · May 1, 2013

Didn't start with easystart so must be ecu i guess, there's no engine management light coming up on ignition either.

Gazza36 · May 1, 2013

Can't seem to find an ecu ERR7112, the engine originally had an egr but it was removed, could I use a non-egr engine ecu? Cheers, Gaz.

Saint.V8 · May 1, 2013

Don't think so as there is still the MAF input to the ECU.....

Now I don't want this post to be a catalyst for the whole EGR/MAF arguement again...just stating that the ECU may be different is all....

Datatek · May 1, 2013

Saint.V8 said:
Don't think so as there is still the MAF input to the ECU.....

Now I don't want this post to be a catalyst for the whole EGR/MAF arguement again...just stating that the ECU may be different is all....

If it has a MAF, it needs the correct ECU.
OP have you checked all the fuses?

Gazza36 · May 1, 2013

Datatek said:
If it has a MAF, it needs the correct ECU.
OP have you checked all the fuses?

Yeah checked them all.

P38guy · May 1, 2013

Gazza36 said:
Can't seem to find an ecu ERR7112, the engine originally had an egr but it was removed, could I use a non-egr engine ecu? Cheers, Gaz.

If you get stuck I have a spare ECU pm me if you find it is ECU you need

Gazza36 · May 1, 2013

Pm'd. If I manage to source an ecu and/or relay, is it just a case of plug and play or does it have to be programmed to the car? Many thanks to everyone.

Saint.V8 · May 2, 2013

Gazza36 said:
Pm'd. If I manage to source an ecu and/or relay, is it just a case of plug and play or does it have to be programmed to the car? Many thanks to everyone.

Engine ECU will need to be synced to the BeCM and vice versa

Gazza36 · May 2, 2013

Saint.V8 said:
Engine ECU will need to be synced to the BeCM and vice versa

I see. How is this achieved? thanks.

Saint.V8 · May 2, 2013

Gazza36 said:
I see. How is this achieved? thanks.

Diagnostics or SyncMate....

mark1971 · May 2, 2013

Didn't somebody do this last year and put an earth from ecu and it worked again??
Just rings a bell to me but then I hear all sorts in my head lol

Gazza36 · May 2, 2013

mark1971 said:
Didn't somebody do this last year and put an earth from ecu and it worked again??
Just rings a bell to me but then I hear all sorts in my head lol

As in earth the ecu to the car?

Gazza36 · May 3, 2013

Sorted! Many thanks to mark1971, connected a wire from the ecu casing to a mounting bolt on the body and she works again.

mark1971 · May 4, 2013

Gazza36 said:
Sorted! Many thanks to mark1971, connected a wire from the ecu casing to a mounting bolt on the body and she works again.

Excellent!!!
Glad it worked for you matey

Ecu damaged?

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