Idles very rough after using passing gear. If I'm at around 55-60 and floor it the engine idles very rough for about 30 miles.
Its a 2000 xj 4.0 auto.
Replaced:
Idle conrtrol motor
Tps
Can sensor cap
Coil pack
Plugs new champion copper
Replaced all injectors.
Wrapped injectors and fuel rail with heat tape.
New battery
New alternator
Cyl 1 tests 130# which was the lowest but within 20# of all the others.
Engine code one day will read missfire on cyl 1, and sometimes it says random missfire. The only sensors not yet replaced are map and crank.
Its a 2000 xj 4.0 auto.
Replaced:
Idle conrtrol motor
Tps
Can sensor cap
Coil pack
Plugs new champion copper
Replaced all injectors.
Wrapped injectors and fuel rail with heat tape.
New battery
New alternator
Cyl 1 tests 130# which was the lowest but within 20# of all the others.
Engine code one day will read missfire on cyl 1, and sometimes it says random missfire. The only sensors not yet replaced are map and crank.