2001 Jeep Laredo FUEL INJECTOR CHECK

109,000 MILES • V8 • 2WD • AUTOMATIC
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LAURAL21
  • MEMBER
  • 1 POST
I hooked up and got 3 different trouble shooting codes 3 feul injectors po204 205 206 car is missing bad. what could it be
Oct 17, 2009 at 1:16 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
This is going to sound strange but you need to have the throttle position sensor (TPS) checked with a scan tool or lab scope.
It has been shown that a TPS with 0.02v or more may cause injector fault codes. If there is a speed control switch input to the Powertrain Control Module (PCM) that is shorted to voltage, it may cause the same problem.
Nov 9, 2009 at 2:13 AM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
This is going to sound strange but you need to have the throttle position sensor (TPS) checked with a scan tool or lab scope. It has been shown that a TPS with 0.02v or more may cause injector fault codes. If there is a speed control switch input to the Powertrain Control Module (PCM) that is shorted to voltage, it may cause the same problem.
Nov 9, 2009 at 2:13 AM
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