Gauges still work if no ECM is there?
Thread Starter
Supreme Member
Joined: Jul 1999
Posts: 1,827
Likes: 1
From: Indianapolis, IN
Car: 2000 Trans Am
Engine: LS1
Transmission: T56
Gauges still work if no ECM is there?
Im going to be ditching my stock ECM very soon. Im replacing it with a Speed Pro ECM. I dont want to spend the extra to get an adaptor harness and the way it comes, it replaces the underhood wiring harness and the ECM of course.
If I get rid of the stock ECM, will my dash gauges stil work? The ones I am concerned with are fuel level and volts. The others I have replaced with mechanical gauges. Which in the end, I may just go to a custom gauge panel and use an AUTO METER fuel guage and volt meter. *shrug*
Oh yeah, I have a cable driven speed so that isnt an issue.
Just wondering though.
Thanks
------------------
-86 IROC
a few mods
this years goal: 10.50 @ 130+ mph
-=ICON Motorsports=-
If I get rid of the stock ECM, will my dash gauges stil work? The ones I am concerned with are fuel level and volts. The others I have replaced with mechanical gauges. Which in the end, I may just go to a custom gauge panel and use an AUTO METER fuel guage and volt meter. *shrug*
Oh yeah, I have a cable driven speed so that isnt an issue.
Just wondering though.
Thanks
------------------
-86 IROC
a few mods
this years goal: 10.50 @ 130+ mph
-=ICON Motorsports=-
Supreme Member
Joined: Dec 2000
Posts: 1,536
Likes: 0
From: Springfield, MO, USA
Car: 1986 Trans Am, 1991 Firebird
Engine: 355 TPI, 3.1L V6
Transmission: 700R4 in both
My friend has an '89 Formula and he swapped from TBI to Carb and his gauges still work w/out the ECM!! Even the speedo...and it's ELECTRIC!
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