Yet another Ford bites the dust!
Have a Ford Mondeo 1.6 Zetec (RK)
Year 1994 (P)
Customer says for some time before the main problem surfaced the car would surge when going downhill and would sometimes cut out. Main problem now is that it will not respond to throttle at all. As soon as you push the accelerator the engine dies. When re starting the engine it takes some time before it will start and idle again and the cooling fan would just run for no reason at all.
On inspection found that insulation on harness leading from multiplug to injectors, ISCV, TPS, and Coolant Temp Sensor had disintegrated. Repaired the harness and re-installed it. On checking for management voltages and earths at sensor and actuators, I found that TPS had no earth, so checked back and found that pin in ECU was broken. I had to solder a wire in direct from board out to main multiplug. This cured the earth problem to the TPS and stopped cooling fan from running unnecessarily but engine still does not respond to accelerator and as soon as you push it the engine cuts out.
Checked for management voltage to cam position sensor – no management voltage available but I do have a good earth. I believe these engines do rely on the cam sensor for sequential fuel injection timing. Looking at the diagram I am sure I should be seeing 5 volts going to Cam sensor with ignition on.
Sorry for the long post again!! Any help would be appreciated before this Ford sends me crazy !!!!