Thread: tbi stumbling
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Old 09-12-2009, 07:52 AM   #6
crainholio
 
Join Date: Nov 2004
Location: Randolph
Posts: 198
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Quote:
Originally Posted by chrisfrom nj View Post
i have a 1988 gmc 1500 pick up it had a 350 tbi i recently replaced the engine with a 1995 tbi 305 now the truck stumbles and pops under load i recently replaced the tps,iac,egr switch,spark plugs ,wires ,cap, rotor ,dist control moduel,i dont know what it can be can someone please tell me what it can be
Your ECM thinks there's still a 350 in there, so all the fuel delivery calculation it's doing are dead wrong.

Time for a new MEMCAL or a custom chip.
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1982 Z28 w/ '01 LS1 + T56, TR224 cam, Katech oil pump, JWIS chain
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