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Background. I just bought my first Mustang. It is a 93 LX with tons of mods. GT40 heads, 30lbs injectors, V1 Supercharger, Holly lower intake, Cam, bbk 70mm throttle body, and some other stuff. Here is the ad where I bought it. http://imgur.com/eLn8vKN
After sitting for a few hours I have to give it gas for a few minutes to keep it running otherwise the RPM's will drop <700 and it will die. I took it into the shop and the mechanic replaced the Idle Air Control valve with a stock one. This didn't fix the problem and I think it may be the Mass Airflow Sensor. It has a stock sensor but is running 30lb injectors and a V1 Supercharger. I called the mechanic and he told me it would need a different IAC because of the charger but that sounds like BS to me. He was recommended by my dad but I am not impressed. Anyway, I can see the sensor and it would be easy to replace I just need to know which MAF sensor I need to get. And also will I need a different IAC valve because of the SC?
I performed the koeo test. It gave me codes 31, 81, and 82. It froze here for about 5 minutes and never put out the separator code or the cmm codes. In addition when I performed the koer test it did nothing until the tester eventually turned off. I looked for the EGR and it has been removed but I guess not deleted from the computer so I'm getting the code. Any way what should I do here?
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