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Originally posted by street_illegal_stang:
start it up at night and spray the plug wire with some water..if you see any spark then I would get new ones..

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I'd try it anyway..I had some new fr 9mm wires that where bad after a few weeks,they're just shitty like that .Check for codes,Usually when a tfi goes,the car will just won't start.Check the tps volts range ,check grounds,vacuum routing of egr system. see if your EGR regulator is working.
If all the above is okay you should put a vacuum gauge on the car where its visable during driving to see if anything funny is going on.
I hate when shit like that happens to my stang..
One time I had your symptoms and fixed the problem by replacing the gas tank as the tank fuel pick up shroud has broken free from the cheap ford tack welds...so when i gased it all the gas would move away from the pick up..
another time was when my vss went. then another time was the bad plug wires nightmare,they all had sparked so i went ahead and replaced alot of sensors thinking the wires where good,I drive it like this for a month the parked it..Someone suggested the spray water trick and bam..
After the replacment all my problems vanished
5.0 mustangs...They're fast and cheap but don't buy them unless you like working on them.

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Originally posted by OneBadHatch:
my car has some new codes since i put the new mas air in now its giving me 44 94 and 13 and im not sure which part of the air intake system i has to do with does anybody know what could cause these codes??

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44 AIR system inoperative (smog code)
94 AIR system inoperative - Transmission TCC circuit/solenoid problem
13 (O) ISC did not respond properly (extends to touch throttle then retracts for KOEO) -
(R) Idle Speed Control motor or Air Bypass not controlling idle properly (generally idle too high)
(M) ISC sticking, open ITS circuit or TP sticking


Sound like you have issues with your smog shit (or it's not hooked up) and your IAC/ISC. If you are having wierd idle then change your IAC/ISC or make sure it is hooked up properly. Next sort out those smog codes

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Originally posted by OneBadHatch:
checked everything possible there are no vacuum leaks.... so if i don't have a smog pump or coal box or anything what am i supposed to connect the smog stuff too

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So what did you do with the vacuum lines that go to the smog equipment?



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93GT DSS331 incon800tti

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Originally posted by GreyLX:
Im gonna guess Vacuum leak. Unmetered air may be slipping into your intake stream.

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Originally posted by OneBadHatch:
if one more person says vacuum leak i swear to god.... there is NO vacuum leak i have checked every little thing for it with carb cleaner there is not even a hint of a leak...can anyone else give me some useful info??

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