lsjjn5
NAXJA Forum User
- Location
- Chapman, KS
My '98 Cherokee with a 4.0L pitched a p0505 code. replaced the IAC and now it wants to idle at 1500-2000 rpm. Still has a check engine light. Reset instruction said drive it above 40 mph for at least 5 minutes. I did that and still has the code and idles high. Checked the circuits from the IAC to the PCM and didn't find any opens or shorts. I'm thinking the PCM isn't sending the signal to close the IAC or i got a crappy IAC from autozone, but probably good based on the ohms readings I got. I checked the ohms on the old and new IAC which came out about 5 ohms difference. 47 vs 52. I'm looking for any advice before I take it in and have a shop look at the Jeep. I do not want to have to replace the PCM. Any help would be greatly appreciated.