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2001 Acura MDX 3.5L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on
Posted to Asian Driveability on 8/2/2007 8 Replies

Vehicle came into shop running on about 3 cylinders. We had tested all of ignition and fuel pressure. All codes listed about existed. Pulled and cleaned all egr ports in upper plenum. Vehicle does run a little better. Now have code p1399=Any cylinder misfiring...

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Message Closed w/FIX

car Vehicle Data

2001 Acura MDX

VIN 2HNYD18212
Engine3.5 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

P0301Cylinder 1 Misfire Detected
P0304Cylinder 4 Misfire Detected
P0305Cylinder 5 Misfire Detected
P0700Automatic Transaxle System Malfunction
Message Closed w/FIX

car Vehicle Data

2001 Acura MDX

VIN 2HNYD18212
Engine3.5 L / 6 cyl / GAS
Trans5-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

P0301Cylinder 1 Misfire Detected
P0304Cylinder 4 Misfire Detected
P0305Cylinder 5 Misfire Detected
P0700Automatic Transaxle System Malfunction