749 with P/H
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Supreme Member
Joined: Aug 1999
Posts: 2,441
Likes: 1
From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
749 with P/H
Will change from 730ECM to p/h with a 749 and wonder if I got this right
1. Wire up the 749 like sy/ty
2. Change inj drivers and sense resistors
3. Add a "internal" jumper between C10-C14
Injectors connects to
1,3,5,7 to C11 and C12
2,4,6,8 to C10 and C14
jumper wires between D5-D6 and C13-C15
Edit.....
Also make sure to remove D7.......
/N.
1. Wire up the 749 like sy/ty
2. Change inj drivers and sense resistors
3. Add a "internal" jumper between C10-C14
Injectors connects to
1,3,5,7 to C11 and C12
2,4,6,8 to C10 and C14
jumper wires between D5-D6 and C13-C15
Edit.....
Also make sure to remove D7.......
/N.
Last edited by gta324; Jul 16, 2005 at 10:14 AM.
Thread Starter
Supreme Member
Joined: Aug 1999
Posts: 2,441
Likes: 1
From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
I switched from -165ECM to -730ECM ($8D) and then to ($58) and then I did the p/h injector mods for the -749ECM and I didnt get the fueling to work properly so I checked all the wiring and found that I had to remove D7 from my ECM to get p/h to work correct, so now its only tuning left............
/N.
/N.
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