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1986 Jaguar XJ12, ECM/Inputs/Outputs Waveform
Posted to the Waveform Library on 6/23/2018

This is hooked up to the fuel pump relay ground wire from the computer, the car was hard to start or no start most of the time. it ran lean with good fuel pressure. the fuel would stay running all the time with key on. it had a bad computer.

 

car Vehicle Data

1986 Jaguar XJ12 5.3L

Engine5.3 L / 12 cyl / GAS
Trans0-speed AutomaticTransmission
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Bad

car Vehicle Data

1986 Jaguar XJ12 5.3L

Engine5.3 L / 12 cyl / GAS
Trans0-speed AutomaticTransmission
DeliveryFuel Injection
SubsystemECM/Inputs/Outputs
Component
ConditionKnown Bad