Author Topic: MK3 GTi 8v ECU No Communication  (Read 299 times)

Offline Lux

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MK3 GTi 8v ECU No Communication
« on: 20 February 2019, 18:24 »
So, Christmas Day my car cuts out on the motorway - no warning signs. I’m recovered home.

I’m not so mechanically minded but had a look a few days later; it will crank but will not start. I’m getting no fuel and no spark at the plugs. My neighbour is a mechanic for Audi and has plugged it into his diagnostics but reads something along the lines of “cannot connect to ECU”.

I have replaced the ECU relay and coil pack so far.

The crankshaft sensor was replaced around 4 months ago. My neighbour had ordered this from Germany as he could not find a good quality one here.

Any other common failures or pointers of where to look next? Any help is appreciated.

Thanks

Offline itavaltalainen

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Re: MK3 GTi 8v ECU No Communication
« Reply #1 on: 20 February 2019, 19:02 »
Which engine code is it? 2E, AGG, ADY?

Does it have an alarm? Factory fitted by any chance?
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Offline Lux

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Re: MK3 GTi 8v ECU No Communication
« Reply #2 on: 20 February 2019, 20:09 »
AGG.

Toad alarm and immobiliser.