I have a 2001 GT with full bolt ons, ported heads and cams. Last year around December my car was tuned and we had a recurring stalling issue after the tune where the car would stall when I slowed down...eventually the tuner adjusted the throttle screw on my accufab throttle body after trying many things in the tune to fix it and that solved it for months. About a month ago I started having idle issues while driving where the car would idle high at 1300-1400rpm. That lasted for a couple weeks and eventually went away. Now I'm starting to have occasional stalls or the car attempts to stall under the following conditions:
Car has to be at full running temp and it will only stall or attempt to stall when I come to a complete stop and it doesn't do it every time. When I start to slow down the rpm's will hang around 1200 and when I come to a complete stop it will either drop to the normal 900rpm idle or drop to 400-500 and attempt to stall or completely die. Never does it with the air on which I assume it's due to the extra RPM's I gain from running it.
I attempted to adust the throttle screw myself and bumped it up a little bit but it was idling a little high but it kept if from stalling. I figured it might be general maintenence so I removed my CAI and cleaned out and lubricated the throttle body, put some seafoam through the vacuum lines as well as in the crank case which after that was done my car was idling about 200rpm higher than before so I bumped back down the throttle screw to compensate. That was good for a few days but it still attempts to die and actually stalled a couple of time in the last two days. I replaced the IAC in Jan so that is only a few months old. I don't know if this has anything to do with it but my stock MAF crapped out on me last week and I had to have a new stock one put in. I feel it might be a mechanical/electrical issue but I'm not sure where else to look...you have any ideas as to what it might be? Is it possible that the EGR is giving me issues? I appreciate any help or suggestions you can offer.
Thanks
Car has to be at full running temp and it will only stall or attempt to stall when I come to a complete stop and it doesn't do it every time. When I start to slow down the rpm's will hang around 1200 and when I come to a complete stop it will either drop to the normal 900rpm idle or drop to 400-500 and attempt to stall or completely die. Never does it with the air on which I assume it's due to the extra RPM's I gain from running it.
I attempted to adust the throttle screw myself and bumped it up a little bit but it was idling a little high but it kept if from stalling. I figured it might be general maintenence so I removed my CAI and cleaned out and lubricated the throttle body, put some seafoam through the vacuum lines as well as in the crank case which after that was done my car was idling about 200rpm higher than before so I bumped back down the throttle screw to compensate. That was good for a few days but it still attempts to die and actually stalled a couple of time in the last two days. I replaced the IAC in Jan so that is only a few months old. I don't know if this has anything to do with it but my stock MAF crapped out on me last week and I had to have a new stock one put in. I feel it might be a mechanical/electrical issue but I'm not sure where else to look...you have any ideas as to what it might be? Is it possible that the EGR is giving me issues? I appreciate any help or suggestions you can offer.
Thanks