need help please running out of hope
#1
need help please running out of hope
i have a 91 short bed chevy with a 90 model 350 tpi when i plug in the est wire it starts missing and running hot have replaced knock,fuel pump,tps,regulator,cap,plugs,ecm,icm,o2,please any help would be very much appreciated
#2
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Car: Turbo Z31, RX7, and 2 F-bodies
Engine: 1.LS1, 2. L98
Transmission: 1.4L60E, 2. 700r4
Axle/Gears: 1. 3.23, 2. Unknown
Re: need help please running out of hope
Pulling up and checking out any and all codes would definitely help before throwing money at something without knowing what's wrong exactly.
#7
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Car: 87 iroc
Engine: 305 tpi
Transmission: t5
Axle/Gears: 3.73 posi
Re: need help please running out of hope
Shld set the timing at 6 degrees but I run my 305 tpi at 8 and its fine. Maybe the coil bad when they get hot they start acting up.
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#9
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Car: 91' Firebird SOLD
Engine: 350 TPI +bolt-ons
Transmission: 700r4
Axle/Gears: 3:42
Re: need help please running out of hope
Let me ask you this: Are all your plug wires good? Start it up at night and look to see if you have any blue sparks on the outside of your wires (arching). This would act like a miss.
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Car: 87 iroc
Engine: 305 tpi
Transmission: t5
Axle/Gears: 3.73 posi
Re: need help please running out of hope
I have seen coils do this if they r bad an start getting hot they will arc jus like a plug wire does. Best to have a few spare parts laying around for trial and error.
#11
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Car: 91' Firebird SOLD
Engine: 350 TPI +bolt-ons
Transmission: 700r4
Axle/Gears: 3:42
Re: need help please running out of hope
Thats true too. Mine had a blue spark going across it once. Coulnd't see it until it was dark outside tho. Thats how i found my bad plug wires too.
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Car: check
Engine: check
Transmission: check
Re: need help please running out of hope
RBob.
#16
Re: need help please running out of hope
Check the spark timing once the EST/BYPASS is re-connected and the engine is restarted. If it retards (likely) the pickup coil wires to the ICM are reversed. Note that you will need to key-off for at least ten seconds after re-connecting the EST/BYPASS connector, then restart the engine.
RBob.
RBob.
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