02-09-2014, 05:33 AM
(This post was last modified: 02-09-2014, 06:25 AM by Darth-Jesus.)
Thanks for the prompt response - I greatly appreciate the help.
Blocked the IAC port (there's two, I only blocked the port you indicated) and NO drop in idle until operating temp was met. No change from before - RPM started above 2k, and eventually hit 800.
Idle screw - I only looked at it, and its pretty deeply set - so unclear if it has ever been touched. Did not adjust because when warm it is idling at 800.
Throttle cable - I've removed it to make sure that it wasnt the problem - there is zero tension at idle.
Throttle valve stop - I've never touched it, doesnt mean PO didnt. But when I cleaned the TB with cleaner, it collected and didnt leak past the TV.
VSV - If i pinch the evap line the idle drops ~100RPM whether the idle is at cold 2k, or warm 800.
I again tried carb-cleaner spray method to find leaks and am finding nothing.
You mentioned O2 sensor and TPS. Should that be where I look next? TPS cal?
(Edit - just calibrated TPS - checked out ok for all feeler gauge sizes - needed minor adjustment - zero change regarding idle)
Also - I forgot to mention in my original post that I did put a new 190deg tstat and used the appropriate gasket and weep hole orientation.
Blocked the IAC port (there's two, I only blocked the port you indicated) and NO drop in idle until operating temp was met. No change from before - RPM started above 2k, and eventually hit 800.
Idle screw - I only looked at it, and its pretty deeply set - so unclear if it has ever been touched. Did not adjust because when warm it is idling at 800.
Throttle cable - I've removed it to make sure that it wasnt the problem - there is zero tension at idle.
Throttle valve stop - I've never touched it, doesnt mean PO didnt. But when I cleaned the TB with cleaner, it collected and didnt leak past the TV.
VSV - If i pinch the evap line the idle drops ~100RPM whether the idle is at cold 2k, or warm 800.
I again tried carb-cleaner spray method to find leaks and am finding nothing.
You mentioned O2 sensor and TPS. Should that be where I look next? TPS cal?
(Edit - just calibrated TPS - checked out ok for all feeler gauge sizes - needed minor adjustment - zero change regarding idle)
Also - I forgot to mention in my original post that I did put a new 190deg tstat and used the appropriate gasket and weep hole orientation.