UncleSarge58
NAXJA Forum User
Keep Getting : P1391- Intermittent Loss of CMP or CKP.
Tried 3 Different Crank Pos. Sensors. Get Same Reading.
Engine Runs ROUGH, MisFires & Stalls at Idle.
Also Shifts Erratically & won't Hold OD.
Tried Clearing Codes & Resetting ECM Memory.
Still getting Same Code.
To Try & Cure Misfire & Rough Idle, I Have Replaced:
1) New Distributor w/ New Cam Pos. Sensor plate, Cap & Rotor.
2) New Copper Spark Plugs & 7mm Plug Wires.
3) New CPS, MAP & TPS Sensors. New Idle Control Unit.
4) New Coolant & Manifold Temp. Sensors & New T-Stat.
5) All New 4 Hole Injectors w/ New O-Rings.
6) New Neutral Safety Switch (NSS)
7) New Trans Shift Solenoids, Gasket, Filter & Fluid.
8) New Fuel Pump, Sock & Filter.
9) Antifreeze, Oil & Filter Changed Too.
After All This, Looks Like the Computer (ECM) is Failing.
Any Clues as to, How to Check or FIX the ECM?
Anything I'm Missing Here? Or, Should I just Replace the ECM?
HELP!!! This thing is Costing me a Fortune & Lots of Time.
UncleSarge58
Tried 3 Different Crank Pos. Sensors. Get Same Reading.
Engine Runs ROUGH, MisFires & Stalls at Idle.
Also Shifts Erratically & won't Hold OD.
Tried Clearing Codes & Resetting ECM Memory.
Still getting Same Code.
To Try & Cure Misfire & Rough Idle, I Have Replaced:
1) New Distributor w/ New Cam Pos. Sensor plate, Cap & Rotor.
2) New Copper Spark Plugs & 7mm Plug Wires.
3) New CPS, MAP & TPS Sensors. New Idle Control Unit.
4) New Coolant & Manifold Temp. Sensors & New T-Stat.
5) All New 4 Hole Injectors w/ New O-Rings.
6) New Neutral Safety Switch (NSS)
7) New Trans Shift Solenoids, Gasket, Filter & Fluid.
8) New Fuel Pump, Sock & Filter.
9) Antifreeze, Oil & Filter Changed Too.
After All This, Looks Like the Computer (ECM) is Failing.
Any Clues as to, How to Check or FIX the ECM?
Anything I'm Missing Here? Or, Should I just Replace the ECM?
HELP!!! This thing is Costing me a Fortune & Lots of Time.
UncleSarge58