94 S10 4.3 Z TBI won't start

1994 CHEVROLET S-10

SHOOBYDOUP

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2 POSTS
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I have a 1994 S10 4.3 vin Z TBI started missfiring going down the road and then backfiring thtough the throttle body and exhaust then died, would only backfire when trying to start, now nothing it just turns over, have code 43, plenty of gas through throttle body, spark to all plugs, pulled all plugs and cleaned and made sure they were getting spark, good compression, i keep getting conflicting stories on the code 43, some say ESC (which would make sense) others say knock sensor (Parts store said no ESC on truck just knock sensor) I am BAFFLED

Oct 30, 2007 at 10:57 AM

SHOOBYDOUP

MEMBER
2 POSTS

after thinking about this I pulled the distributor cap and rotor and found a combination of things clearance between cap and rotor and rust build up on rotor conection, replaced cap and rotor, truck started to pop but sounded flooded so i unhooked wires to throttle body and tried again truck started and burned fuel out of the cylinders, hooked throttle body back up and truck ran fine. Easy fix was just weird because it was running down the highway at 60 mph when it quit

Oct 30, 2007 at 1:57 PM

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