What would make idle 25 higher than set value?
03-10-2004, 07:42 PM
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What would make idle 25 higher than set value? I have programmed the car to idle at 825 and it refuses to do so. It will idle 850 +/- 10 rpm. I had it at 875 and it idled at 900. What could be cause the pcm to make the idle value higher. Values are check by autotap. Thanks.
John
John
03-11-2004, 09:23 PM
#3
Originally Posted by John02SS
I have programmed the car to idle at 825 and it refuses to do so. It will idle 850 +/- 10 rpm. I had it at 875 and it idled at 900. What could be cause the pcm to make the idle value higher. Values are check by autotap. Thanks. John
joel
03-11-2004, 09:35 PM
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Originally Posted by Bink
The set Idle value is a target for the PCM - not an absolute. You might try reducing your IAC value (a small amount) which will reduce airflow at idle. What are your IAC and RAF tables set at 40*C and up?? Alternatively, you could reduce timing advance a couple/few degrees at 1200 ->800 RPM. Hope this helps some.
joel
joel