Reduced engine power

Question

I have replaced the Throttle Body, still had reduced engine power come up, replced pedal position sensor, still same problem, I put a new PCV valve and ran good with no problems for about a week before the Reduced Engine power came up again. Not sure what the problem is.

Answer 1

Reduced Engine Power

One of the most common cause for a Reduce Engine Power is the connection  Chevy has a TSB for this condition  TSB # PIP3089B

 On this Chevy 6.0 there where 2 codes P2135 and P1516, After clearing the codes, P2135 was able to be duplicated just by wiggling the wire for the throttle body. Using this TSB it was determned that the wire sure enough had poor connection less than 1/4 to the connection  The fix was to recrimp the connection for this throttle body. You can also get a harness connection kit from the dealer