LMAO ****IN STEVE..


this is really good info u guys are postin here, and as much as im learning... any ideas on the original topic

try burping the coolant system, could be air in there.

Its super easy to do and doesn't cost a thing.

well, have you done what we told you to do? if so, post the results, then we can get closer to a sol'n for you.

I tried the IACV off a ITR, cleaned my throttle body, checked for vacuum leaks, changed to dizzy (now it doesnt die on me). tried a new TPS, new MAP, but it still idles all freakin weird...

so results: same thing! rpm needle does alot of bouncin and then gets stuck at 1500rpm

yea zeeman i think i should give that a try, but ive never done it b4...

someone told me to run seafoam to clean my injectors and stuff.. any input on this?

thanks everyone

seafoam is a good idea either way... def try it out

however, your idle problem is not going to be related to a fuel injector problem.

when code p0505 or p1508 are not indicated on a scan tool, check:
ALT FR signal
air cond signal
brake switch signal
starter switch signal
hoses and connections
iac valve and it's mounting o rings

possible causes:
IAC mechanical failure
Throttle body clogged port, improper adj
Intake mani gasket leak
Intake air hose loose
Vacuum hose leak
ECT sensor incorrect output
Throttle pos sensor incorrect output

take the intake tube off and plug the upper air port with your finger.... then plug the lower one with your finger. what happens in each case?

thanks ill def try this tonight when i get home..

So you swapped TPS's?

Did you calibrate it? I bet not, if so.. you have to tap into the sensor clip wires (red+green, i believe), when the throttle is closed it should read 0.4 or 0.5V (I forget which one it is excatly) At WOT should read 4.5V

okay thanks, im gonna try this 2morrow when i got time, but im gonna bleed my coolant first