Did search, still need help
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From: Sittin on jackstands
Did search, still need help I did an Idle learn on my tune after the HC swap. I thought it idled a little high when in gear (about 575rpm) so I disconnected the PCM and Batt and tried again (not thinking the IAC controlls this duh) Now I get a ses light before it will learn the idle, and its the TPS code. I would think the IAC was the culprit?? I can reset it and it will stay off a while, but it wont learn the idle. When its cold it starts fine, and after you get it to idle its fine, but if you start it warm its a PITA to keep it running for about 30 sec- 1 min. Is there any way to check the TPS and/or IAC. Or other opinions?? I dont have any scanning equipment, but a bud has a predator for checking codes. Thanks 
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I don't a shop manual handy but I would throw an ohm meter on the TPS output and see how it measures up against the specifications.
I understand that with a head/cam (H/C) swap the idle air may have to adjusted by drilling a hole in the TB (throttle body) butterfly. Do a search on this for particulars.
The other thing to try, if the TPS checks out, is adjusting your timing at idle, advancing it a little.
I understand that with a head/cam (H/C) swap the idle air may have to adjusted by drilling a hole in the TB (throttle body) butterfly. Do a search on this for particulars.
The other thing to try, if the TPS checks out, is adjusting your timing at idle, advancing it a little.
Originally Posted by redmist
I don't a shop manual handy but I would throw an ohm meter on the TPS output and see how it measures up against the specifications.
I understand that with a head/cam (H/C) swap the idle air may have to adjusted by drilling a hole in the TB (throttle body) butterfly. Do a search on this for particulars.
The other thing to try, if the TPS checks out, is adjusting your timing at idle, advancing it a little.
I understand that with a head/cam (H/C) swap the idle air may have to adjusted by drilling a hole in the TB (throttle body) butterfly. Do a search on this for particulars.
The other thing to try, if the TPS checks out, is adjusting your timing at idle, advancing it a little.
