Auto electrician ?
Discussion
I had an issue with my 944 recently, after an hour or so driving I stopped for fuel and afterwards only got a few hundred yards before the car coasted to a halt. Tried a couple of things but it wouldn't restart so had to call the RAC. The guy checked for a spark first by putting the coil lead to earth while I turned the engine over, must have been a spark as he reconnected the lead, told me to try again, and it fired straight up. I drove home without issue and the strange thing is the car was running better than before and the air fuel ratio was spot on whereas before it had been a little rich. So what did shorting the coil lead do ?
Whilst working 24 hour emergency breakdown services in the mid nineties, over the space of a couple of years I had a spate of Sierras and Cavaliers failing to start, I used to connect a test lamp to -lt on coil and short to earth, vehicle would then start fine, according to a friend seriously into electronics it was caused by a problem with the firing points on the electronic pick ups in the distributor.
ch427 said:
blade7 said:
I watched him disconnect the coil lead, it was fully in.
You said it was difficult to remove, maybe it had some light corrosion on it?Around 15 years ago was the last time I had to call the RAC when my 93 Audi 2.6 wouldn't restart, they tried various things the last was disconnecting the battery leads and touching them together, it worked. I believe this either resets the ECU and or discharges the capacitors. My 944 hasn't died since but a couple of times the AFR went rich and the engine stumbled for a couple of minutes. I temporarily disconnected the battery leads and connected them with a fused wire and all seems fine at the moment...
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