Nov 072009

i just installed a 89 chevy tbi in an 84 chevy crew cab. it has a very rough idle and is running very rich, shakes like heck under 1200 rpm. i have put a new regulator,iac vavle,plugs, wires, cap,o2 sesor in. it is not give any trouble codes

  2 Responses to “1989 chevy truck 350 tbi”

  1. I do want to ask if you swapped the computer and wiring including O2 sensors and such? Was the ’84 carbureted?

  2. Did you ever get you problem solved? I have a similar prob.

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