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1999 Ford Ranger XL 3.0L Misfire, MIL Lamp on
Posted to Ford Driveability on 2/10/2009 6 Replies

Vehicle has somewhat of a rough idle, almost as if a cyl. was down. It has a new cmp sensor and #1 o2 sensor. But after every test drive it throws a po135 and p1309. All tedst performed checked out good. I was seeing if anyone else has seen this problem before...

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car Vehicle Data

1999 Ford Ranger XL

VIN 1FTYR14V6X
Engine3.0 L / 6 cyl / FLEX
Trans5-speed Automatic (Electronic)
DeliveryFI / MPI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways

Trouble Codes

P0135Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction
P1309Accelerator Sensor Circuit High Voltage
Message Closed

car Vehicle Data

1999 Ford Ranger XL

VIN 1FTYR14V6X
Engine3.0 L / 6 cyl / FLEX
Trans5-speed Automatic (Electronic)
DeliveryFI / MPI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways

Trouble Codes

P0135Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction
P1309Accelerator Sensor Circuit High Voltage