on friday night my AFM packed in, came up with a fault code so i borrowed a known working one and it solved the problem. Then i went out to buy a new one to fit, the car was running very rich, it used about £10 of fuel for 40miles or so of driving!
But before i got to the place i pulled over and stopped the engine. then when it was restarted it just cut out after a few seconds, did this a few times, then it did start and stayed running until i revved it to move off then it died again and kept doing that a few times. Then it wouldnt start at all, not even try. But i noticed when the engine was running for the few seconds the ecu light was flickering fast
I got hold of the afm (cheers fenix) and fitted it but its made no difference, that cant be the problem now. I just cant get it to start, checked everything i can think of. I noticed the ignition coil is getting no power to it on the black/red wire (its getting power on the black switched live wire only), and the fuel pump is getting no power on the red/blue wire (both are getting a good ground). ive replaced the fuel pump relay twice now and it made no difference. ive tested the wiring with a multimeter and its all ok, no breaks or shorts as far as i can see. all the connects are clean and the engine has a good ground. but its getting no spark or fuel because half of the engine doesnt seem to have power!
also the ecu light doesnt light up anymore when the engine is off like it should, since it started flickering its gone dead. it never lights up anymore at all, so no fault codes can even be read if there are any. so maybe the ecu doesnt have power.
Could the ecu be at fault? can the ecu keep the fuel pump and ignition coil off even when trying to start? could the engine running so rich affect anything like this? I removed a spark plug and it had heavy deposits so it was rich!
the engine does turn over on the starter but thats all.
cheers for any help, really need to get it working, this weekends been one thing after another failing! so far, master cylinder has broke, AFM, and now whatever this is!