Originally Posted by
Fabrik8
Get rid of the SAFC. You don't need it, you already have a tuneable P28. Go get it tuned somewhere. And don't say "it's already tuned", because if it was, it wouldn't run like shit.
Running like that isn't anything to do with being a built motor, you don't have big lumpy cams or anything like that. It's not stock, but it's made with stock parts, there is nothing that can't be properly tuned with that ECU.
It's also possible that you have a sensor problem, or an idle air control valve (IACV) problem, but I doubt it. IACV problems are fairly easy to troubleshoot thought.
I'd get rid of the SAFC and go from there, there's no reason to have one and it's just going to complicate (and possibly interfere with) your ECU tuning.
Or, he could have a bad MAP sensor, as a good friend of mine with a TypeR did the other day! His was doing exactly as described!
However - I doubt that's the problem in this case. Just giving you shit man, cause you're cool!