Hello to everyone, while trying to hunt for a solution to my problem I found the site so thought it the best place to be as a two Skoda family, well one at the moment.

 

I have a 1.4 mpi 2001 with 60k on it. My wife was out in it a few weeks ago and it just cut out suddenly refusing to restart. I realised that the the fuel pump was not working.

 

I have a basic scanner which will not connect to the vehicle, it did before this ok and read the ECU. We had the car recovered to a local garage who shrugged after their scanner did the same, did little for a week, then said the ECU must have had it and suggested getting rid of it, which was nonsense, leaving me £70 out of pocket.

 

someone I know had a brief look at it and manually activated the fuel pump relay, the car started on the button and ran perfectly, he said the ecu is fine if the car is running like that. I was/am hoping they were going to come back but they are just too busy and it has been dragging on, the MOT has run out and I desperately want to get it back on the road.

 

I have checked all the fuses to the various things and all are fine, disconnected and reconnected the ECU, hunted everywhere for any sign of wiring amiss but can see nothing I tried another relay just in case, but rarely that easy, it turns over fine and the tacho moves when cranking, the lack of reading the ECU and the none operation of the fuel pump must be linked as far as I can understand

 

Can anyone give me any pointers, I am hampered by not being very able with modern car electrics, I have a 1960's classic car and that I can manage.

 

Thanks in advance

Edited 28 July, 20187 yr by TND
missed a bit

There's a blue/yellow wire connecting pin 80 of the (engine) ECU connector, and pin 1/Mot of the fuel pump relay socket. If you have a multimeter, a piece of wire to extend one of the leads sufficiently, and an assistant for a minute, try to find out if that wire is intact, by measuring resistance from end to end.

 

I'm not 100% sure the relay socket will have pin numbers/names, but these may appear on the base of the relay (or the lid).

Edited 28 July, 20187 yr by Wino

Thanks,  I have got my hands on a multimeter and other bits, will give it a go

Do these cars have an impact sensitive relay for the fuel pump that could have tripped.

Otherwise you could bodge another temporary relay to the fuel pump, switched off a handy unrelated ignition live to keep you mobile.

Rain stopped any attempt today,  typical. I had a quick look at the pins on the Ecu, I couldn't see any numbers apparent is there a diagram or am I missing something,  thanks

Edited 29 July, 20187 yr by TND
Typo

decided in the end to get the ECU tested, advised it was damaged by a voltage spike and is now being repaired. The car was being driven at the time, no jump starting, messing with battery was involved.

 

I am waiting to see if there are any clues as to what caused this from the damage caused, my fear is putting it back on and it happening again, at which point the car will be binned.

 

Is there any known issues with this model ?, the car has only 60000 miles on it, so is running on everything original under the bonnet as far as I know, any thoughts would be appreciated 

Normally the voltage regulator in the alternator.

it has made me think it may be prudent to replace something like that for safety, it is manky looking and will be the original, could something like that be a random spike or is there a way of testing it prior to refitting the repaired ecu ?

For the cost of it id be tempted to put an exchange one on.

after refitting the repaired ecu the faults P0140 P0141 and P0230 were logged, I knew the second sensor had produced the first two codes a few weeks before and it was going to be changed when I went over the car pre MOT so left it till then. I spoke to the people who repaired the ecu and they said the chip related to the Lambda was the issue