strange loss of power P30 454
P30 1991 454 Chevrolet with TBI. Banks Kit, Passes CA. smog test. Normally runs fine. When pulling a grade, at about 3/4 throttle "there is no more power increase " If I back off the throttle the pow...
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EGR valve sticking in one position.
Also if the 02 sensor has more that 60K on it you will notice a performance improvement by replacing it (they get lazy and slow to respond). And for that year they're cheap.
Also if the 02 sensor has more that 60K on it you will notice a performance improvement by replacing it (they get lazy and slow to respond). And for that year they're cheap.
