Slight miss at idle…any suggestions?

[Plains Drifter]

I have replaced the plugs…removed plugs looked good. Beyond this I’m thinking it could be the plug wires, but do not know how to test them. My scan master numbers are below. If you have any suggestions it would be appreciated.

Thanks,

Patrick


Readings taken when car was at operating temperature.

AF 05
L8 39
INT cycles 123 - 134. Recorded over 1 minute.
BL 146
ATS 102 It’s is hot here.
RPM 775
TPS .42
IAC 67
CC cycles 20 - 254. Recorded over 1 minute.

 

[Bird of Prey]

your iac-value is kind of high. This number should be at about 10-20 i suppose. This is where my car is set, but i have a slight stumble also at idle, so...

 

[JoelGN]

Have you tried searching for a vacuum leak and resetting the IAC/TPS?

 

[87NAT]

High BLM's are almost a sure sign of a vacuum leak. Set the IAC first as per the spring cleaning guide from GNTTYPE. org. Of course the high idle could be from the computer trying to compensate for a lean(extra air) condition.

Then start checking every vaccum line coming off the intake one at a time for a leak.

Be patient and you will find it.

 

[Plains Drifter]

Thanks for the input. I will check for leaks.

Patrick