When I put the A/C on the idle drops and on occasion the car stalls. This is a mild build--outside of cleaning the IAC and/or raising the idle what else could it be?
Make sure your TPS is set below 1V.
Also make sure you're setting your idle after the engine is at full operating temp and the IAC is unplugged.
Obviously check for vacum leaks.
I meant that it was OFF 300 at idle--or are you pulling my chain...:rolling:+1 and your tach should not be 300 RPMs at idle.
PCM isn't the issue, the overall tune is. May as well plan on getting it tuned to fix it, or raising the idle to mask it.
...when I had my last dyno session, Conley's in Houston set my timing way into the 19-21* range: the a/f was monitored/adjusted and I got no detonation. When it got hot (!) in Texas, I started to detonate and so I pulled out some timing in two stages--but (now that I remember) I did not change my fuel pressure. I am now at 15* and am processing my sitch by first adjusting my fuel pressure. I also borrowed a 73mm C&L to see if this maf will help any over my 77 Bullet. I think, as I said earlier, its going to need a bit of TuneLC.:lol1:Unplug the IAC, start the car, allow it to get to op temps, check the TPS voltage, set timing, set idle. Shut car off, plug in IAC and restart. Thats how I've always done it. If thats not right to begin with, everything will act up. Hope this helps. :beer:
btw - I think your a/f mix is on the rich side.
Also. Cant stress enough on checking for air leaks.