ok so...
If I adjust the Dist housing retarded, it does not throw a code but runs with what feels like less higher RPM power. I am trying to get it as far clockwise as I can without a code and then go from there I guess.
Can advancing Cam 4deg, cause a P1391 code
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rwkhaussupply
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jeepxj3
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Re: Can advancing Cam 4deg, cause a P1391 code
You advanced the cam 4* and
'Advancing the camshaft timing in relation to the crankshaft will lower the power curve range on your engine. This means that the power curve will start at a lower rpm. Retarding the cam timing, increases the power curve - the power curve will start later at a higher rpm'.
Isn't that what you are seeing, less upper rpm power?
Why not take out the 4* advance that you put in and then run it and time it with the toothpick method. Wouldn't your cam/crank sync then be within range/spec and no code.
'Advancing the camshaft timing in relation to the crankshaft will lower the power curve range on your engine. This means that the power curve will start at a lower rpm. Retarding the cam timing, increases the power curve - the power curve will start later at a higher rpm'.
Isn't that what you are seeing, less upper rpm power?
Why not take out the 4* advance that you put in and then run it and time it with the toothpick method. Wouldn't your cam/crank sync then be within range/spec and no code.
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