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When giving my 1995 GMC Sierra gas when the light goes green it falls plum on its face like its overloaded with fuel but feather the gas pedal it clears up and runs fine anyone have any ideas. Done replaced wires,plugs,cap,button,fuel filter added injection cleaner to gas. PLEASE HELP

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  • Cars & Trucks Master
  • 42,120 Answers

Have the fault codes read. Replace the faulty units with
genuine one because most aftermarket units are not set for OEM cpu units and are not completely compatible.. Check for mass air flow sensor fault.

Posted on May 11, 2013

  • Troy Gates May 11, 2013

    Had one code found vacuum leak on rubber boot from pcv valve going into TB replaced still no help how do I check mass air flow sensor because no other codes showing

  • Bill Boyd May 11, 2013

    Check fuel pressure at fuel rail. check throttle position sensor. Check ambient air sensor. Check crank position sensor. Check the ECM as you have a fault that it should be reporting. Have you replaced anything with non genuine items as some CPU do not work well with non genuine items.

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: 1995 GMC Sierra

check you ideler sensor i had the same problem on

Posted on Oct 07, 2008

  • 599 Answers

SOURCE: Service Engine Soon Light and Rough Idle (Below 1200 rpms)

do you get check engine codes?..have you done a leak down test and compression test to determine mechanical engine health?

Posted on Oct 07, 2008

co7196
  • 3433 Answers

SOURCE: 1995 honda accord v6 tack jumps sometimes, but sometimes fine.

It is what you call hunting. Carb or throttle body injection?. more than likely TBI. Could be the throttle position sensor,The mass air flow sensor, fuel pressure regulator. have the fuel pressure ck'd first.. then the throttle position sensor. then the maf sensor. Have the maf sensor cleaned, They are very expensive. Make sure the air cleaner is clean, clean. it and the maf work together. - good luck, Ned

Posted on Jun 23, 2009

  • 148 Answers

SOURCE: 96 gmc sierra hard to crank after 12-14 hours

that has a votec engine in it the fuel pressure is droping at knight and it takes 60 psi before the injectors will fire most likely cause fuel pump ,leaking injector ,or a feul pressure regulator

Posted on Jul 14, 2009

  • 6 Answers

SOURCE: 1993 gmc sierra 4wd 5.7L running rough mostly

timing might be off a little...or your low idle control might not be functioning. try unhooking your idle control module on throttle body, if it doesnt change idle when you disconnect it, its faulty.

Posted on Jan 29, 2010

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