3.42 gear help!!!!
Thread Starter
Intermediate
Joined: Jan 2004
Posts: 26
Likes: 0
From: Walnut Creek Ca.
3.42 gear help!!!!
I am having a problem with the car computer. When I changed to 3.42 gear in my 2003 automatic I keep getting the code 1870.
A guy used a H.P. programer to change the computer. It seems to work for about 75/100 miles then the code comes back.
I do have the LS1 program but have not used it yet, because I don't know how.
Can anyone help or tell me what to do ?
A guy used a H.P. programer to change the computer. It seems to work for about 75/100 miles then the code comes back.
I do have the LS1 program but have not used it yet, because I don't know how.
Can anyone help or tell me what to do ?
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
A guy used a H.P. programer to change the computer. It seems to work for about 75/100 miles then the code comes back.
P1870 means that the TCC slip error tables were not changed during the reprog and the PCM thinks there is a malfunction (excessive slippage) in the tranny or TC - when there really isn't any problem with the tranny/TC.
Before you double check the programming - are you certain the TC is locking - and actually not slipping excessively ?
Melting Slicks
Joined: Feb 2002
Posts: 2,613
Likes: 0
From: Winston Salem NC
Originally Posted by jack 7220
I am having a problem with the car computer. When I changed to 3.42 gear in my 2003 automatic I keep getting the code 1870.
A guy used a H.P. programer to change the computer. It seems to work for about 75/100 miles then the code comes back.
I do have the LS1 program but have not used it yet, because I don't know how.
Can anyone help or tell me what to do ?
A guy used a H.P. programer to change the computer. It seems to work for about 75/100 miles then the code comes back.
I do have the LS1 program but have not used it yet, because I don't know how.
Can anyone help or tell me what to do ?
Thread Starter
Intermediate
Joined: Jan 2004
Posts: 26
Likes: 0
From: Walnut Creek Ca.
I have the LS-1 Edit, I have not used it. The guy I went to had the H-P and had used it before so he used that one. He has moved out of town. How can I use the LS to make the right adjustments ?
Melting Slicks
Joined: Feb 2002
Posts: 2,613
Likes: 0
From: Winston Salem NC
Originally Posted by jack 7220
I have the LS-1 Edit, I have not used it. The guy I went to had the H-P and had used it before so he used that one. He has moved out of town. How can I use the LS to make the right adjustments ?
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Melting Slicks
Joined: Feb 2002
Posts: 2,613
Likes: 0
From: Winston Salem NC
Originally Posted by jack 7220
I have the LS-1 Edit, I have not used it. The guy I went to had the H-P and had used it before so he used that one. He has moved out of town. How can I use the LS to make the right adjustments ?
