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gmc jimmy fullsize

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Old 11-07-2011, 08:02 PM
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Default gmc jimmy fullsize

high idle tried everything help its an 88 fullsize 5.7 4x4 tbi injection checked the iac tps any vacuum leaks ,cat converter,fuel pressure injectors new ecm it still has the orig. prom getting good spark
 

Last edited by fuzzmando; 11-29-2011 at 11:33 AM.
  #2  
Old 11-07-2011, 08:55 PM
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What year, motor, etc?
 
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