You have a problem within the engine management system to find out what's causing the CEL to come on scan the computer for code/s this is your starting point.
12 Memory Standby power lost.
13 MAP sensor pneumatic circuit.
14 MAP sensor electrical circuit.
15 Vehicle speed/distance sensor.
16 Loss of battery voltage sense.
17 Engine running too cool.
21 Oxygen sensor circuit.
22 Coolant temperature sensor circuit.
23 Throttle body temperature sensor circuit.
24 Throttle position sensor.
25 AIS motor driven circuit.
26 Peak injector current not reached.
27 Fault in injector driver interface circuit.
31 Purge solenoid circuit.
32 On Calif. Models, EGR diagnosis.
33 A/C cutout relay circuit.
34 Speed control solenoid driver circuit.
35 Fan control relay circuit.
37 Fault in part throttle unlock solenoid driver circuit.
41 Charging system excess or no field circuit.
42 ASD relay circuit.
43 Fault in ignition coil control circuit.
44 Loss of FJ2 to logic board.
46 Battery voltage too high.
47 Battery voltage too low.
51 Oxygen feedback system stuck at lean position.
52 Oxygen feedback system stuck at rich position.
53 Internal logic module problems.
54 Indicates a fault in the distributor high data rate pickup circuit.
55 Completion of fault code display.
62 Indicates unsuccessful attempt to update EMR mileage.
63 Unsuccessful attempt to write to an EEPROM location by the controller.
77 Speed control power relay circuit.
Thursday, August 13th, 2009 AT 6:23 AM