Hello. I have a 1989 Oldsmobile 88 Royale. It has the 3.8L V6 Series 1. It has 152K on the dash. Since Janurary I am having no start problems. Since then I changed the plugs & wires, ignition coil & module & module connector, crankshaft & camshaft sensor & harmonic balancer. I also redid the vacuums on the motor. I am getting fuel. I changed the filter out 2 months ago. It gets spark sometimes when i check it. It cranks but it wont turn over at all. I just dont know what to do from this point. I was contemplating buying a new ECM, but everytime I do the diagnostic test it says it is working. Only code it gives me now is 12 but maybe because the battery died from me trying to start it. I have a battery charger now tho but before the car quit it gave me a 34 & 41. Could I need a new engine harness? Or a new ECM? I also need a new bolt that goes in my balancer and i dont kno where to buy one other than a junkyard and I dont have a ride & oriley'* is up the street. Someone please help.

It sounds like it may be a ground issue or a problem with the wiring harness, a pain to track down but just check all grounds and wiring.

Sorry I missed this. Have you checked to see if the injectors are firing? You may have fuel in the fuel rail, but if the injectors are not pulsing then the fuel is not getting in to the intake.

found these things the other day for code 41:
"Most common cause of a persistent 041 is that the magnet (interrupter) has fallen off of the cam sprocket."

CODE 41

Trouble Code 41 indicates that the Camshaft Sensor is not functioning properly.

The ignition module uses the Cam Sensor signal for timing the spark firing. The ignition module also passes this signal to the ECM to enable sequential fuel injection. The inability to properly determine engine position from the Cam Sensor will generate Code 41.

The engine will continue to run if the signal is lost from the sensor, however it will not restart after shut down. If the Cam signal from the ignition module to the ECM is lost while running, the ECM will switch to the simultaneous fuel injection mode. The engine can be re-started but will continue to run in the simultaneous mode as long as the fault is present.

The conditions for setting this code are:

the engine is running, and
the Cam Sensor signal is not received by the ECM in the last 1 second interval


Typical causes for this code include:

1) Loose or misadjusted Cam Sensor
2) Defective Cam Sensor-to-ECM connections
3) Defective ECM

Cam sensor installation and adjustment procedures call for very exact tolerances. It is for this reason that it is recommended that the service manual be consulted while performing any adjustment or replacement of the Camshaft Sensor.

what does it gets spark sometimes mean?