removing 3000 rpm limiter...HOW?
#1
removing 3000 rpm limiter...HOW?
since i swapped engines i have had a problem with my truck trying to stall out and buck at 3000 rpms, while in all running gears. if i gun it it will go past the limiter of 3000 rpms but that is a pain in the *** when i am usually changing gears at a higher rpm. how do i remoeve or disable this annoyance myself w/o having to pay out the *** for a new computer?
#2
#5
If you can drive through it, it is not a PCM rev limiter. You have some other problem.
What year is the truck, what was year/displacement of the original engine, what year/displacement is the replacement engine and which PCM is in there now?
What year is the truck, what was year/displacement of the original engine, what year/displacement is the replacement engine and which PCM is in there now?
#6
#7
The Camshaft Position sensor (CMP) changed from a Hall Effect (3-pin) in 1998 to a Variable Reluctance Sensor (2-pin) in 1999. The CMP sensor and the engine harness must match the year of the PCM.
If you have the correct combination of sensor, harness and PCM, then check to see if the CMP is timed correctly to the camshaft.
If you have the correct combination of sensor, harness and PCM, then check to see if the CMP is timed correctly to the camshaft.
#8
it has the 99 2-pin cpm that matches the pcm thats in there, nothing has been mismatched in the swap electronically, even have the original throttle body right down to the each sensor.....what if the throttle position sensor has a glitch in it. would that make it do the jump at 2900-300- rpm? i tested it with a voltometer and there was a small glitch in the readout at just about the position the throttle would be when this crap happens.
#12
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