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Message: <blockquote data-quote="mic_lx" data-source="post: 382521" data-attributes="member: 9847">It's been over a month now and we can't still figure out what is wrong with my 5.0 stang.Heres some backstory. I was driving the car (not flooring it) and when I got to a stop light the car's iddle started to go up and down consistenly and it kept doing this since that day, no matter if it was cold or hot.Had the car checked, at the shop they found that the MAF was damaged (I actually saw it, one of the wires was broken), also the IAC was damaged. They got both things replaced and things really improved but the car was now iddling at almost 1000rpms, but the idle still was noticeable to go up and down slightly... the only difference now is that when we turn on the AC, the car just dies.We can restart the car again with no problems and no with the AC on the car will keep on running but the iddle will still go up and down.They noticed this at the shop but this has been really hard to solve. They say that the TPS is good along now with the new MAF and IAC, so what else can cause this? :dunno:By the way, the EGR is no longer working for this car, the previous owner took out the air pump and all the emissions stuff and was still running great.Besides that mod, it also has a Cobra lower and upper intake, CAI and MSD ignition.Any suggestions or ideas will sure help</blockquote>