Help Needed

[95Grand-Am]

I have a 4T60-E that I want to lock in 1st gear for racing on a short oval track. Does someone have a wiring diagram so I can control the trans with toogle switches? Thank you very much for your help.

[GutlessSupreme]

Too bad you don't have a 4T60, they do that on their own

[bszopi]

DESCRIPTION
The PCM controls automatic transmission shift points by use of solenoid operated fluid valves inside the transaxle. The solenoids get power when the ignition is "ON," and become energized when the PCM completes the circuit to ground.

OPERATION
When the transmission is placed in "D" range, the PCM energizes both shift solenoids to engage first gear. The PCM constantly monitors engine speed, vehicle speed and throttle position to determine shift points. When vehicle speed and throttle position sensor signals reach calibrated values, the PCM turns solenoid "A" "OFF," forcing a shift to second gear (second gear - only solenoid "B" is energized). When a third gear shift is required, the "B" solenoid is turned "OFF" (third gear - solenoids "A" and "B" are "OFF"). In fourth gear, only solenoid "A" is energized. The PCM ignores all positions of the "PNRLDL" switch except for manual low. When the gear selector is in the manual low position, the PCM will keep both solenoids "A" and "B" energized until the engine reaches 5,400 rpm, when the PCM will turn solenoid "A" off and force a first-second shift. This is to avoid engine and transmission damage.

[gpse3400]

theoretically... at the connector, the blue wire is soleniod A and the green wire is solenoid B going into the connector. Grounding out both A and B will hold 1st. My fsm for your year transmission is packed away right now....Some here could verify the wiring????

1st AB
2nd B
3rd off
4th A

[bszopi]

This is for a 94 Beretta, but a 95 GA should be very similar.

[95Grand-Am]

I would like to thank you for the information. So on longer tracks that I want to hold 2nd gear it will shift into 3rd if the engine turns over 5400rpm, more matter were the shiter is at.

[IsaacHayes]

I don't know how your's is setup but mine stock has OD, D, and L. If I have it in L then it will shift early into 2nd, but after in 2nd if you pull it into L it will hold 2nd until the rev limiter. I have done this to wind out 2nd a little more on 1/4mile tracks.

[95Grand-Am]

Thanks IsaaHayes, I hope mine works like yours.

[IsaacHayes]

Check out this, it explains it just as well as I could:

http://www.angelfire.com/super/ghettoretta/trans.htm

[95Grand-Am]

Your wiring diagram shows A & B to be the shift solenoid control. I have other wiring diagrams showing G & F to be the shift solenoid control but the two that I found were for a 3.4L DOHC and a 3.8L. I would have thought that they would have used the same locations. Is there a way for me to be able to tell? There are several cars that I want to lock into 1st gear. which include 95 grand prix, 95 monte carlo 3.4L,and a 95 grand am. the color of the wire on the 95 Grand prix include A) green B) Yellow black C) brown D) pink black E) brown F) yellow G) black white. IF A B is corect for the Grand Prix I would use green and yellow black. The colors on your diagram are very simualr to mine unlike the diagrams that I found for the 3.4 and 3.8. Any thoughts on this would be appecated, thank you.