With the key "on" I have 12 volts and correct fuel pressure from the fuel pump. Once I start cranking the engine the voltage drops to around 8 volts and I have no fuel pressure. I have replaced the fuel filter, fuel pump, fuel pressure regulator, fuel pump relay, and oil pressure switch. After all this a began to trace the voltage drop starting at the fuel pump all the way up to the fuel pump relay then to the connection on the firewall and still have a voltage drop. According to the schematic (if I am reading it correctly) from the firewall connection (left rear of the engine compartment) it then goes to the ignition switch. Could the problem be in the ignition switch? The engine cranks but will not fire up. I have fire at the plugs and the timing chain appears to be okay. Any sugestions? Thank you!
Feb 15, 2010 at 6:34 PM
