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Idle stumble

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bluezone

Member
Joined
Feb 9, 2010
Messages
159
I seem to not to be able to get my GN to keep a steady idle, I replace the IAC sensor but I haven't replaced the TPS yet... When the tps is set to .42 she has the shakes so I raise to .44 & it cleared it up alil bit... But once I raise the IAC count to around 15-25 the problem starts to get worse I'm puzzled

We tried, swappin out the ECM & computer no help @ all...
 
Check...

your maf, if you have the flex hose on it there may be a hole or holes in the tube and you are getting unmetered air. also you maf may be going out. If you clean it you must use a cleaner designed for the sensor. oil getting on the sensor can damage it as well. You can ck the maf by slightly tapping the maf to see if it gets worse or the eng. dies. that would be a good indicator that the maf is bad. Check your tps to make sure you have your .42-4.50ohms when you open the throttle body. make sure there is no brakes or skips in the values as they change. the resistance should rise in value w/the opening of the throttle valve.
 
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