Low idle in gear, codes 45/65
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Joined: Oct 2004
Posts: 34
From: Tennessee
Low idle in gear, codes 45/65
Car 1992 Corvette 383, Automatic Trans
Recent Tune-up
Brand new IAC, Coolant sensor
No vac leaks
When i installed the IAC i cleaned the throttle body up real good (no effect on the problem)
I don't have any kind of scan tool (other than a volt meter) so i can't/don't know how to check counts, but i'm thinking maybe the throttle body blades aren't opened enough. That could cause a lack of air which would want it to stall while making the engine run real rich.
It seems to idle fine in park (maybe a little rich) but goes down when i'm at a redlight.
Any thoughts?
Recent Tune-up
Brand new IAC, Coolant sensor
No vac leaks
When i installed the IAC i cleaned the throttle body up real good (no effect on the problem)
I don't have any kind of scan tool (other than a volt meter) so i can't/don't know how to check counts, but i'm thinking maybe the throttle body blades aren't opened enough. That could cause a lack of air which would want it to stall while making the engine run real rich.
It seems to idle fine in park (maybe a little rich) but goes down when i'm at a redlight.
Any thoughts?
Last edited by captaincaveman; Jun 27, 2007 at 09:39 AM.
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Joined: Nov 1998
Posts: 71,110
From: Hell was full so they sent me to NJ
The codes are for an excessivley rich exhaust. At least that's what the O2 sensors are telling the ECM. You need to find out why. Not likely its related to the IAC. Excessive fuel pressure, faulty IAT or MAP sensors
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