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If system was opened to the atmosphere it will have to be evacuated prior to charging
There is no ignition module on a 1987 5th ave. The spark control computer is on the air cleaner with a vacuum line hooked to it.
No but the pump runs only when air enters the Mass Air Flow meter. In other words the Mass Air Flow turns on the fuel pump.
The P1135 is set when the Engine Control Module detects a heated oxygen sensor heater circuit malfunction. This could be caused by a faulty air-fuel ratio sensor or a faulty engine control module.
The 2003 Ford F3 50 air conditioning clutch relay switch can be found on the firewall in the engine compartment. The air conditioning clutch relay switch will be on the passenger side of the firewall.