p0505 problems
#21
Did you clean the IAC port out real good? Any bit of crap in there can cause this to malfunction. Also check wiring to it as well. Make sure there isn't a break in it. Also, double check for a vacuum leak. This can allow more air in and cause idle to be faster than it should and PCM is reactin to that. A good scanner will help identify the issue if you can find someone with one.
#22
#23
IAC port is immaculate, I used acetone to clean the entire throttle body, stuff is a miracle. Brand new IAC, installed to specifications on included card. Wiring is good, intermittent issue, sometimes works, sometimes don't. My money is on a vacuum leak, but how to find? I have a similar problem with my 98' ford explorer and can't find the vacuum leak to save my life.
Just curios, what brand IAC did you purchase? And was the negative battery cable disconnected when you cleaned TB and installed new IAC?
#24
affirmative, the neg- cable was disconnected during installation. Durajunk "duralast" brand IAC, same one that came off it. I believe that the instructions inside the box say to be sure to install with "X" clearance, which is a little over one inch if memory serves. I may just end up removing it and sendin it back to Autojunk "autozone" I'll try the vacuum trick, thanks
#25
#27
Replace the IAC with at least a Standard Motor Products brand. Don't screw with it like the directions say. Just install it, reconnect the negative battery cable and turn the key to the on position 10 times(without starting). The eleventh time, start it, and go from there.