help with ecu

rangerwheelinmike · #1 05-12-2010, 12:17 PM

i want to install a torque converter lock up switch but i cant find out what pin 53 in the engine management harness is any help?

Jp7 · #2 05-12-2010, 01:19 PM

awesome idea. What is the color of the pinout - i can maybe help you.

FireRanger · #3 05-12-2010, 02:00 PM

This sounds cool. Explain what this does? You can do that manually?

Jp7 · #4 05-12-2010, 02:10 PM

Quote:

Originally Posted by FireRanger

This sounds cool. Explain what this does? You can do that manually?

The ECU simply uses software and mapping to determine how your powertrain operates. Using a pinout to force voltages for whatever output you want is the oldest trick in the book. Only better trick is to rewrite the software to give you the results you want. (I do this with ecuflash XML all day)

FireRanger · #5 05-12-2010, 02:24 PM

Understood. What is the advantage (and disadvantage) of doing this? Is it just +12 or ground locks it up?

rangerwheelinmike · #6 05-12-2010, 02:27 PM

Quote:

Originally Posted by FireRanger

Understood. What is the advantage (and disadvantage) of doing this? Is it just +12 or ground locks it up?

i figerd it out and got it to work pin 53 in the ecu tap in to that wire and run it to a switch and from the other side of the switch to a ground when the switch in on your convertor will stay locked when in 3 and 4 gear then when the switch in off it will be like it allways was it took me abought 20 mins to do

FireRanger · #7 05-12-2010, 02:30 PM

My limited knowlege of transmissions tells me this would be great for cruising on the highway, bad for they city, and really bad if you need to slam on the brakes?

05RangerEdge · #8 05-12-2010, 02:34 PM

Cool idea! Hows it working out? if you dont turn the switch off and slowdown will your truck stall out? any negative effects people should know about?

rangerwheelinmike · #9 05-12-2010, 02:37 PM

theres rilly no down side to it because if u slam on the brakes when it kicks in to second gear it will un lock, when u are cursein 70 down the e way and you take your foot of the gas for a sec it will not unlock but in city driving you wouldn't want to leave it locked o just turn the switch off and it will be like u never even did anything

FireRanger · #10 05-12-2010, 02:38 PM

I think that is exactly what will happen. I would probably wire with an interlock to the brake pedal. That way if I step on the brake, it disconnects.

rangerwheelinmike · #11 05-12-2010, 02:38 PM

Quote:

Originally Posted by 05RangerEdge

Cool idea! Hows it working out? if you dont turn the switch off and slowdown will your truck stall out? any negative effects people should know about?

nope will not stall it is better for the trannie becouse with it kicking in and out that is ware and heat

rangerwheelinmike · #12 05-12-2010, 02:39 PM

Quote:

Originally Posted by FireRanger

I think that is exactly what will happen. I would probably wire with an interlock to the brake pedal. That way if I step on the brake, it disconnects.

dont have to cuz when u step on the brake and it kicks down to second gear or even first gear it will un lock becouse there in no lock up in first or second gear

Jp7 · #13 05-12-2010, 02:46 PM

I'm sure the software monitors the brake pedal as it is. That's why modifying the software is a better way to do this.

rangerwheelinmike · #14 05-12-2010, 02:48 PM

Quote:

Originally Posted by Jp7

I'm sure the software monitors the brake pedal as it is. That's why modifying the software is a better way to do this.

im veary happy with it save gas now lol

05RangerEdge · #15 05-12-2010, 07:01 PM

Maybe you could post some pics of what you did exactly(how to)?.....I do a lot of interstate driving and I hate the shifting during 75-80. I think this would be a great mod for me or do i have the wrong idea here?