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Old Oct 1, 2016 | 09:29 PM
  #1  
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89 bronco

I have a 89 bronco with a 5.8l. When you stamp the gas its stalls tell you let off the gas. I changed fuel pump in tank, replaced reservoir on frame, high pressure pump, regulator, tp sensor, cap, rotor, plugs, wires, map, erg valve, fuel filter, it runs better but, still stalls when you stamp the gas. It throws codes 72 and 73 on self test at engin on, and It ideals grate. I just can't figure it out. Anyone mite have a suggestion on where to go from here?
 

Last edited by Crasher907; Oct 1, 2016 at 09:45 PM. Reason: To add more to the post.
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Old Oct 3, 2016 | 03:39 PM
  #2  
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what is your timing set at? have you checked your fuel pressure with a gauge?
 
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Old Oct 3, 2016 | 08:53 PM
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Air filter ok? Does it act differently with the intake tubes removed from the throttle body?
 
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Old Oct 3, 2016 | 10:45 PM
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Have you cleaned the throttle body and IAC valve lately?.
 
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