regularman Posted June 29, 2005 Share Posted June 29, 2005 Can someone explain the power light and the operation of the awd 4speed automatic transmission. How does the 4wd work on these cars? Quote Link to comment Share on other sites More sharing options...
All_talk Posted June 29, 2005 Share Posted June 29, 2005 The "power" mode raises the shift points for the transmission for better acceleration. A qiuck jab on the throttle peddle will bring it on. The AWD 4EAT uses a variable clutch pack to transfer power to the back wheels as it senses slip in the front. Default is torque split is 90 front/10 rear but will go upto locked 50/50 under slip. Gary Quote Link to comment Share on other sites More sharing options...
NorthWet Posted June 29, 2005 Share Posted June 29, 2005 To clarify a little, the variable clutch pack is a variable-duty-cycle pack; a solenoid varies how often/long (PCM or PWM???) the pack is engaged. Quote Link to comment Share on other sites More sharing options...
Turbone Posted June 29, 2005 Share Posted June 29, 2005 Annnnnnd, a varistor can be attached to the duty soleniod C to adjust the ratio to the rear I havent done it yet, have the part, but some others over at XT6.net have. Quote Link to comment Share on other sites More sharing options...
NorthWet Posted June 30, 2005 Share Posted June 30, 2005 Annnnnnd, a varistor can be attached to the duty soleniod C to adjust the ratio to the rear I havent done it yet, have the part, but some others over at XT6.net have. Mini 'jack: Turbone, unless my belief is wrong, the varistor wouldn't really work very well. Do you have a link, or are you going to make me go to XT6.net and search? :-p End 'jack Quote Link to comment Share on other sites More sharing options...
Turbone Posted June 30, 2005 Share Posted June 30, 2005 Hmm, I could be wrong with the terminology, it could be just a pot. Mr. Radon gave me the unit. Quote Link to comment Share on other sites More sharing options...
regularman Posted June 30, 2005 Author Share Posted June 30, 2005 The "power" mode raises the shift points for the transmission for better acceleration. A qiuck jab on the throttle peddle will bring it on. The AWD 4EAT uses a variable clutch pack to transfer power to the back wheels as it senses slip in the front. Default is torque split is 90 front/10 rear but will go upto locked 50/50 under slip. Gary Well, I just put an ea81 motor in an an ea82 car with this tranny. I think I'm gonna have to hook up the throttle position sensor to the carb on the ea81 for it all to work right. This has been fun. Quote Link to comment Share on other sites More sharing options...
All_talk Posted June 30, 2005 Share Posted June 30, 2005 Yep, TPS is what sets the "power mode". I'd bet you're getting a TCU error code without the TPS. Is the power light always on or flashing? Gary Quote Link to comment Share on other sites More sharing options...
regularman Posted June 30, 2005 Author Share Posted June 30, 2005 Yep, TPS is what sets the "power mode". I'd bet you're getting a TCU error code without the TPS. Is the power light always on or flashing? Gary It was flashing for a while, last time it came on solid. I wonder if I just plugged it in and left it in the idle position if it would take it out of the power mode? Quote Link to comment Share on other sites More sharing options...
All_talk Posted June 30, 2005 Share Posted June 30, 2005 If its on solid from start up and never goes out you're not "in" power mode. The power mode light functions as a "CEL" for the TCU, a CTL I guess. If its always on or flashing its telling you the TCU has stored or active codes. Somewhere here or over on Legacy Central there is a procedure for checking and clearing the TCU codes. Gary Quote Link to comment Share on other sites More sharing options...
regularman Posted July 4, 2005 Author Share Posted July 4, 2005 I finally got the chance to plug in the TPS. I just left it set at the idle postion and tried the car and it seems to shift normally. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.