Mike 97
Well-Known Member
- Joined
- February 9, 2002
- Messages
- 152
- Reaction score
- 0
- City, State
- CT
- Year, Model & Trim Level
- 1997 XLT
My truck will idle normally and smooth at 750 with the iac unplugged ( at operating temp). With the iac plugged in it idles around 900 +/- 50rpm. I have replaced the egr ( bad idea) and the iac ( factory part). I have recently replaced the plugs with motorcraft dbl plats and gapped @ .051 -.052" Is there another sensor I am missing? ECT was replaced about 2 months ago and the FPR was relpaced when the fuel pump went bad. PCM is giving no codes - I have the actron scanner so I can't get any other info except for codes. One other thing - if the gas is depressed quickly (similar to kicking down the idle on an older vehicle) it will idle @ 750 rpm for a few sec before going back up to 900rpm. It idles @ 750 in drive - it was lower before but, I don't remember exactly how much lower. Sorry for the length of the post - I wanted to be precise. Thanx.
p.s. the pro-m maf is not on now - it has the stock maf.
p.s. the pro-m maf is not on now - it has the stock maf.