Mitsubishi Pajero I.O. 1.8ltr 1999, 114,00kms.
Problem description When the car is put under load from either driving up a hill with passengers or sometimes just having the air conditioning on the car stops firing on all four cylinders and reports an Error Code #44 (Coil - cylinders #1 and #4). The car rumbles, loses power and the engine warning light comes on. I pull up turn off ignition and re-start and everything will be OK again for a while, again until under load. The load point at which it trips has varied greatly in the six months this problem has persisted.
Work done so far:
- ECU sent away for testing and came back fine.
- All connectors checked.
- Fuel filter replaced.
- Plugs changed.
- Plug leads changed.
- Coils swapped over and error code still reports 1&4 as not firing (therefore assuming coils are fine?).
- All four injector connectors replaced.
- Oxygen sensor replaced.
Current condition (as of 7/4/07)
Now the problem mainly occurs when first driven in the morning. Within
30 seconds of starting the car up it fails at around the same spot, just a few yards up the road. Maybe its starved of fuel? On restart again its fine. Coming home from college after the car has been sitting still all day I sometimes get the problem, but always worse in the morning. What I find odd about this is how the symptoms of the problem appear to have changed. Six months ago driving uphill could set it off, then puttin on the A/C would almost guarantee it failing, now the A/C will operate, though you feel power loss. Its now happening initially starting up within 30 seconds I'll have the problem. Ive spent$1200 trying to fix this, I'm now back at college as a mature student after being made redundant, so would really appreciate any help you may be able to offer.
Many thanks,