First complaint stated no spark. Additional complaint stated no fuel delivery from injectors.
Fuel pressure at engine should read 40-45 psi. If not, filter could be plugged or pump bad.
Are you sure your check engine /service engine light is actually operating when you turn key on? If not then you need to be sure you checked for codes with an approved code reader.
No codes would indicate at least 2 possible scenarios. One is either the computer (ECM/PCM) has failed completely and is not delivering any codes.
The other is that what ever is causeing the problem has nothing to do directly with the computer in order to operate ie. Anything mechanical or electrically independant of computer control.
To not have spark or fuel delivery you should have at least one of the following codes:
19 Crankshaft position sensor or circuit.
33, 34 Mass Air Flow sensor or circuit.
41, 51 PROM, MEM-CAL or ECM problem.
42 Electronic Spark Timing circuit.
52, 53 CALPAK or ECM problem.
54 Fuel Pump circuit.
63, 64 Manifold Absolute Pressure sensor.
Humor me a little and try this: Spray a little carb cleaner or starting fluid into the throttle body and then see if the engine tries to fire. If it does then you have a fuel delivery problem. If it does not fire then we are back to the previous discussion.
Other than the above suggestions, the only other thing to do would be to take it to the dealer service dept. They have a way to coax hidden codes out of the system.
Give feedback and let me know what happens.
Saturday, March 15th, 2008 AT 9:07 PM