L69 Monte Carlo ecm in my bird
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Junior Member
Joined: Nov 2011
Posts: 71
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From: Washington D.C. area
Car: 1986 Pontiac Firebird s/e
Engine: 305 Chevy
Transmission: 700r4
Axle/Gears: 2.77 for now
L69 Monte Carlo ecm in my bird
Sirs,
Has anyone tried to run a Monte Carlo ss L69 ecm in their 3rd gen LG4. I've got a cam swap in my Quadrajet 1986 bird, 212@ .050s (Comp Cams 260H), and a performer intake, and headers. I'm looking for a cheap way to run a ecm that is closely calibrated to my specs of my car. Any thoughts here, guys?
Has anyone tried to run a Monte Carlo ss L69 ecm in their 3rd gen LG4. I've got a cam swap in my Quadrajet 1986 bird, 212@ .050s (Comp Cams 260H), and a performer intake, and headers. I'm looking for a cheap way to run a ecm that is closely calibrated to my specs of my car. Any thoughts here, guys?
Joined: Nov 2002
Posts: 6,642
Likes: 403
From: Oyth
Car: 89RS vert
Engine: Erod
Transmission: 4L65e
Axle/Gears: BW, 3.27
Re: L69 Monte Carlo ecm in my bird
The ECMs aren't all that different between the LG4 & L69.It's the chip that makes the difference.As long as the ecm #s are the same, then itll be fine
If you meant the chip on the other hand, then probably a slim to none chance it working well for you.
If you meant the chip on the other hand, then probably a slim to none chance it working well for you.







