trouble codes

  #1  
Old 08-23-2011, 03:01 PM
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Default trouble codes

1995 z71 I keep checking code 22 tps fault, I've replaced the ecm and eprom 4 times,I've had it to the chevy dealership and thats what they replaced since then. Everytime this happens there is a stumble in the engine, the tach drops 300 rpms,then it faults to code 22 and the engine idles at 1500 rpms. anyone have any ideas b4 I replace it all again?
thanks for any help
 
  #2  
Old 08-23-2011, 07:28 PM
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Have you replaced or tested the TPS?
 
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