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It's in the program. You can buy a programmer from many sources and reprogram it yourself. What these things do is raise the rpm limit to increase horsepower and torque. The reason for a limiter in the first place is to guard against overrevving the engine and destroying it.
To remove the rev limiter, you must have your engine control computer reprogrammed, so that means that you will have to take it to the dealer and have their techs reprogram it to your specs.
The rev limiter kicks in at about 6800 RPM to prevent "coast over" to unsafe revs, so I suggest you have a custom programmed PCM that eliminated the rev limiter feature or moves up the RPM limit.
what is the rev count showing at idle? if its lower than service manual specs then adjust and observe. otherwise could be what the other guys said: throttle sensor,IAC valve,fuel filter, plugs or igniter.
have to reprogram iac to specs to do this hold rpm just below rev limiter for 2 minutes then do again should reprogram but turn the light out first by disconnecting negative battery cable
The rev limiter is built into the program of the Engine control module. You will have to replace the ECM with one that doesn't have a rev limiter or reprogram the ecm to eliminate the rev limiter.
The two most likely possibilities are a vacuum leak, or a faulty Idle Air Control (IAC or IDAC) valve.
Inspect the vacuum hoses for cracks or tears. With the engine running, listen for any tell-tale hissing sounds. Make sure there are no leaks in the intake manifold area.
Check the IAC wiring and connector. Use a voltmeter to test its harness. Refer to a manual for the specs of the voltages on the connectors. Also test the IAC itself with an ohmmeter. Again, refer to the manual for the correct resistances across the leads. Another diagnostic is to remove the IAC entirely, leaving the intake open. If the engine idles ok with the IAC removed, this is a sign that the IAC is not opening at idle as it should.
You'd probably have to get a reprogrammed or chipped engine computer. Removing the rev limiter though is a sure fire way to destroy your engine. Even Ferraris and Porches have rev limiters.
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