i have 4.3 motor i just replaced the check engine light keeps giving me code 32 and 43 .

1993 CHEVROLET CHEYENNE
90,000 MILES
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REDNECKS GARAGE
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  • 2 POSTS
these codes come up after i have driven down the road about 5 miles. it goes off again after sitting a while. when you drive the truck after it shifes out of 1st gear going in to 2 and 3 gear it chockes out and try to die. but if i keep putting on the gas i can get going again at about 55 or 60 it runs smooth. i have changed the knock sensor and the fuel pump. cleaned the egr. new plugs and plug wires. new distrubitor and rotor button. HELP
Mar 16, 2012 at 5:34 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Check the EGR valve and the knock sensor again -disconnect the battery for a few mins-and if the codes will come back
Mar 16, 2012 at 5:47 PM
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REDNECKS GARAGE
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  • 2 POSTS
have already done that seveal times. the code always comes back
Mar 16, 2012 at 6:04 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Inspect and test the wiring back to the computer for short and open circuit none found have the computer checked-
Mar 16, 2012 at 10:20 PM
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