Greetings All,
After replacing the lower intake manifold gasket on a 1996 Tahoe 5.7L, and re-installing the distributor, the car was throwing code P1345 (cam position and crank position don't agree). The car did run ok, more or less. The proper method to correct is to attach a scanner with cam retard data. I don't have one so I did this:
To clear the code, I did the following with the assumption that the distributor was misaligned. 1) made an alignment mark on the cap to a fixed part of the engine. 2) used scanner to take some base measurements which I didn't need to use. 3) cleared code 4) started engine and counted to see how long it took for the CEL to glow (base iteration - immediate) 5) moved distributor, cleared code, started car, observed time to CEL ... repeat.
Results: 1st iteration = car did not start (in this case counter-clockwise turn on the distributor was incorrect) 2nd iteration = 2-3 seconds for CEL to light, 3rd iteration 4 to 5 seconds, 4th iteration no CEL. Tightened distributor, so far so good.
I hope this helps someone else to get their car better tuned without having to by a new scanner. I believe this applies only to the OBD II trucks (1996 and newer).
Cheers!
After replacing the lower intake manifold gasket on a 1996 Tahoe 5.7L, and re-installing the distributor, the car was throwing code P1345 (cam position and crank position don't agree). The car did run ok, more or less. The proper method to correct is to attach a scanner with cam retard data. I don't have one so I did this:
To clear the code, I did the following with the assumption that the distributor was misaligned. 1) made an alignment mark on the cap to a fixed part of the engine. 2) used scanner to take some base measurements which I didn't need to use. 3) cleared code 4) started engine and counted to see how long it took for the CEL to glow (base iteration - immediate) 5) moved distributor, cleared code, started car, observed time to CEL ... repeat.
Results: 1st iteration = car did not start (in this case counter-clockwise turn on the distributor was incorrect) 2nd iteration = 2-3 seconds for CEL to light, 3rd iteration 4 to 5 seconds, 4th iteration no CEL. Tightened distributor, so far so good.
I hope this helps someone else to get their car better tuned without having to by a new scanner. I believe this applies only to the OBD II trucks (1996 and newer).
Cheers!
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