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4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

Weird stutter problem

Old 01-31-2019, 10:11 PM
  #21  
Flash gt
 
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The oil pressure looks a little low also. My car the needle stays past the half way point.
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Old 02-02-2019, 10:30 AM
  #22  
casual man mann
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I already cleaned and replaced the IAC during my weeks of troubleshooting so it is good. I believe the issue is related more to the automatic ECU trying to make adjustments to the IAC when it shouldn't, thus causing my weird drivability issues. Unplugging it caused it to run great except Idol is that about 1100 but that is fine by me.

and as far as the oil pressure gauge, from what I understand it's more of an on-off gauge and as long as it doesn't read 0 you have good pressure.
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Old 02-02-2019, 12:02 PM
  #23  
Urambo Tauro
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Originally Posted by casual man mann View Post
...I just picked up a 96 gt 5 speed...
Originally Posted by casual man mann View Post
...I just checked the door tag and it's a factory manual. I'm also throwing a damn torque conver code...
Originally Posted by casual man mann View Post
...Just got it back from Firestone and it's a pcm from a Lincoln Town car...
Originally Posted by casual man mann View Post
Ok I have the right pcm on the way from rock auto with the correct calibration code. The eBay one I ordered just showed up and it isn't the right code but I tried it anyway since it's from the same car...
Originally Posted by casual man mann View Post
...Just took the new pcm from rock auto to ford and they flashed it, but the car won't run...​​​​​​
Originally Posted by casual man mann View Post
...I believe the issue is related more to the automatic ECU trying to make adjustments to the IAC when it shouldn't, thus causing my weird drivability issues...
Wait, are you still trying to run the car with an automatic PCM/ECU? What happened to the correct manual one?
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Old 02-18-2019, 07:47 PM
  #24  
casual man mann
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Originally Posted by Urambo Tauro View Post
Wait, are you still trying to run the car with an automatic PCM/ECU? What happened to the correct manual one?
Yes I was. The new correct ecu wouldn't run the car because it was missing the transceiver. But it's all good now!
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Old 02-18-2019, 07:50 PM
  #25  
casual man mann
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Final update :
I went this morning to the junkyard and pulled the PATS module, transceiver from a 96. The codes didn't match up completely but i called Ford and they said it was compatible. They wouldn't cut me keys because the car is too old I guess. I just called a locksmith and he came and cut me 2 new keys and programmed for $150 and she runs!!!!

Haven't driven her yet but she's good to go. Thanks for the help guys.
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Old 02-20-2019, 01:04 PM
  #26  
Derf00
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Thank you for the update. Glad to see it's running properly now.(?) Hopefully your experience and posting of the solution will help someone else in the future!
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