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Lack of power on acceleration

  • Thread starter Thread starter jameshernandez
  • Start date Start date Aug 30, 2026
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jameshernandez

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Aug 30, 2026
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Aug 30, 2026
#1
  • Aug 30, 2026
  • #1
Hi I have an 02 GT. About a month ago I started noticing a random miss on acceleration over about 1/4 pedal. It was just a slight hiccup. If you weren't driving you wouldn't even notice. It has progressed to bogging down like the traction control is kicking in every gear while under load. At cruising speed it runs just fine, no lights, idles fine, starts up fine. Replacef MAF and TPS sensors already. Any help would be appreciated. Thanks
 

Noobz347

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Aug 30, 2026
#2
  • Aug 30, 2026
  • #2
Have you pulled ECU codes?

What is your fuel pressure when this occurs?
 

Mustang5L5

That is…until I whipped out my Bissell
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Feb 18, 2001
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Sep 2, 2026
#3
  • Sep 2, 2026
  • #3
ECU codes and I would datalog MAF flow as well as fuel pressure. ALso, there are misfire counter PID's that you can monitor that will register a count when you get to one of those hiccups.
 
J

jameshernandez

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Aug 30, 2026
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Sep 6, 2026
#4
  • Sep 6, 2026
  • #4
It ended up being spark plugs. I think they were the original ones. They were pretty worn looking.
 
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