Possible to program LG4 prom?
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Joined: Aug 1999
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From: Rowlett, TX
Car: 1988 GTA
Engine: 5.0 TPI
Transmission: T5
Axle/Gears: 9 Bolt, 3.45
Possible to program LG4 prom?
Is it at all possible to program an LG4 ECM? The reason I ask is because I am using the stock LG4 ECM with my 400.
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Joined: Jul 2001
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From: San Antonio, TX
Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
i believe it's not. i have asked before and the results were no. the ccc system is what i'm going to use on my 355. lets see what happens.
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Supreme Member
iTrader: (1)
Joined: Aug 1999
Posts: 2,842
Likes: 6
From: Rowlett, TX
Car: 1988 GTA
Engine: 5.0 TPI
Transmission: T5
Axle/Gears: 9 Bolt, 3.45
I wouldnt recommend it. While it does work fine with my 400, i am sure i am losing power due to using an LG4 fuel map and spark curve. Plus the quadrajunk carb is not my favorite...
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iTrader: (2)
Joined: Jul 2001
Posts: 1,823
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From: San Antonio, TX
Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
i'll be using an 86 L69 PROM, Harness, & ECM. knock sensor woo-hoo. not an LG4: 
. the q-jet isn't that bad... compared to that edelcrock performer
i had on there before.
. the q-jet isn't that bad... compared to that edelcrock performer i had on there before. 
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