Does anyone know if you can do a 'master reset' on the ECM? Car is an 89 305TPI. I changed the IAC and there's some talk of resetting the ECM.
thanks

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89 GTA
305 TPI
WC 5spd w/3.45 rear
Accel Cap & 8mm Taylor's
MSD6A Ignition
Accel Supercoil
Custom Cold Air Induction
Jet Airfoil
K&N Airfilter
160 deg stat/fan switch
Hypertech Thermomaster Chip
Steel Rad
Cat back 3" Exhaust
HiGh FlOw Dynomax Cat

 

To change/adjust IAC read https://www.thirdgen.org/newdesign/tech/tpimod2.shtml

To "reset" the ECM disconnect tha battery for a coupleof minutes...

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GTA -89:Free flow muffler,dual 3" HF cats, Edelbrock headers, Vette heads, 1.52 RR 7/16, ZZ-9 cam, Big Mouth, AS&M LTB, ported plenum, 52 TB, MSD 6AL, TPIS level V prom, Mod .MAF, Superior shift-kit and some minor mods. and more to come!
http://www.itv.se/tacs/members_cars/m279/m279.html (Swedish Trans Am Club)

 

Steve,

Disconnect power to the ECM for about thirty seconds to clear all retained DTCs and any BLM tables that have been written. The car will run on base lookup tables in the PROM until it gets fully warmed, the integrator and BLM are enabled, and new data table can be written based on your current sensor inputs.

If you have a Theft-Loc radio, try to remove power by unplugging the ECM fuse instead of disconnecting the battery. If you disconnect the battery, disable the radio lock code first.

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Later,
Vader
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"Make Me Bad"
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