Common water damaged Corsa D engine ECU



This engine ECU is a very common failure for the Vauxhall Corsa 1.3 CDTi built from 2006 – 2013, the failure of the ECU is caused by water ingress due to the poor location of the ECU within the water drain channel under the windscreen.

Because the common fault with this Vauxhall Corsa ECU is water damage, we see a wide range of symptoms caused by ECU failure.

Common customer reported fault description:

“Initially the car started to misfire/run rough and the engine management light would come on. Called out a mobile mechanic who came out and performed a diagnostic check and the fault code read injector number 4 faulty. When he came to change the injector the car would not start so he investigated further and found the ECU submerged in water”

Common Failure symptoms:

• Misfire on one cylinder
• Will not rev past 1500 rpm
• Non-start (intermittently)
• Complete non start and no communication via diagnostic.

Common fault codes:

• P0201 - Injector 1 Voltage Low
• P0202 - Injector 2 Voltage Low
• P0203 - Injector 3 Voltage Low
• P0204 - Injector 4 Voltage Low
• P2146 – Capacitor Voltage 1 Low Voltage
• P1600 - Replace ECU
• P1625 - Main Relay Intermittent
• P060B - Replace ECU
• P0608 - Internal Control Module Defective
• P1120 - Pedal Position Sensors Circuit 1
• P1122 – Pedal Position Sensor Circuit 2
• P0683 - Glow Plug Circuit Low Voltage

This is a list of common fault codes, usually a failed ECU will only cause one or two of these codes to be stored.



Affected Vehicles:

• Vauxhall Corsa D 2006 - 2013

Info above from the site below, i have no affiliation with the company.

Corsa 1.3 CDTi ECU

Common water ingress issue for the Corsa D will cause misfire and even non-start

www.ecutesting.com

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Member Flipflip had the same issue as me and posted this on 28/11/2021

The full thread is here - Corsa D (2007) CDTI 1.7 ECU Water Damage



I've since resolved the issue. I ended up sending the damaged ECU off to a company called 'Cartech Telectronics Ltd'. They completed the same procedure as ECU Doctor but for £30 quid cheaper. Total bill incl postage & VAT was £490. Daniel was especially helpful, would recommend. Turned the work around within 48 hours or receipt of the damaged ECU.

I was unable to find a donor ECU myself, otherwise I would have gone down the AutoTronics route. There are very few of these cars being broken, and the ones I did come across had either already sold their ECU's or were looking for £500ish. I did come across a couple of spares in Poland / Romania but even sourcing from this far afield came with a £200-250 price tag (without a flash of existing car data).

When the donor ECU was remounted I had the entire area (inc drains) cleaned out, and also had it fitted on some washers in an attempt to elevate it slightly in the scuttle panel.

After labour for the diagnostic, and refit (£80 inc VAT), my wallet is now £570 lighter. Interestingly.. the rough idle I have previously posted about (which I had thought was an EGR issue, due to associated engine fault codes) has seemingly sorted itself out. So an ECU issue could be something to consider if you're experiencing similar problems.

 

 

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Just to say, I recently bought a 1.3 CDti, joined the forum and was warned about this issue by SXI_1.2.

I've now had the opportunity to inspect mine and I'm pleased to say the scuttle is clean and dry and the drain holes are clear. The previous owner obviously didn't park under trees very much. I didn't take the ECU apart to inspect it because that would have involved breaking the seals. When I have more time and some favourable weather I will look into relocating or at least raising the ECU to make it less prone to water damage by immersion.

If it ever does start faltering due to moisture already having got into it, well, I am an electronics tech by trade and have some experience with repairing PCBs which have been damaged by water ingress, so as long as the damage is not too bad I would probably try to fix it.

 

I've now had the opportunity to inspect mine and I'm pleased to say the scuttle is clean and dry and the drain holes are clear.

Glad to hear that yours is clean sounds like you may get many trouble-free years from the car.

 

With winter now looming the only thing which worries me a little is the prospect of snow getting into the scuttle because that will easily clog the drain holes while the rest of it melts and sloshes around in the scuttle. This potential for water damage to the ECU is such a well known problem by now that it is a wonder it has not been taken up by one of the claims companies and legal action taken against Vauxhall.

mycorsa13CDTiclaim.com, anyone?

(Don't go looking for it, I've just made it up!).

 

I wish I had known about this issue when I had my diesel it was fairly low milage and in good condition for its age and all i got was scrap value.

 

The video most should watch due to the this

Sent from my moto g(8) plus using Tapatalk

 

Brilliant video, how lucky was he finding a dry one.

 

Bump