90 silverado 5.7 surges at idle and stalls in reverse???

Discussion in 'GM Powertrain' started by jimbo1113, Dec 15, 2012.

  1. jimbo1113

    jimbo1113 New Member

    1990 5.7 v8 TBI automatic 2wd. idle problems and surging when i come to a stop and sometimes stalls out in reverse. have a TPS code. put new sensor on and drove. didnt fix it. can i check the spray pattern of the injectors???
     

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