Changing ECU On 87 350tpi L98
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Junior Member
Joined: Jan 2012
Posts: 35
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From: Corona
Car: 89 Z28 T-Top
Engine: 305
Transmission: T5
Axle/Gears: 3.27 posi
Changing ECU On 87 350tpi L98
i was wondering if there is anything specific i have to do after replacing the ecu on my 87 Camaro 5.7 350tpi.. reason being is because it would crank and start with old one now this new one it just cranks and cranks.. why am i changing it? because i was told it had a short & and thats why my tps didnt have no power at all & stay ideling at 400+.. thanks for looking.
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Joined: Mar 2003
Posts: 851
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From: vacaville,ca
Car: 1988 camaro z28,1997 camaro lt1
Engine: 355 afr 195 heads,tpis big mouth
Transmission: 700r-4 built by me 3-4 z pack
Axle/Gears: 3.42
Re: Changing ECU On 87 350tpi L98
Did the new one Ecm come with a new prom/chip?
Thread Starter
Junior Member
Joined: Jan 2012
Posts: 35
Likes: 0
From: Corona
Car: 89 Z28 T-Top
Engine: 305
Transmission: T5
Axle/Gears: 3.27 posi
Joined: Oct 2001
Posts: 12,216
Likes: 1,141
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Changing ECU On 87 350tpi L98
You have to use the cars orginal chip. Not the one from the "new" ECM.
Unless you got super lucky and its the same chip.
Unless you got super lucky and its the same chip.
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