P 1870 code, can this code be tied to programming???
Thread Starter
Pro
Joined: Nov 2001
Posts: 731
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From: Austin TX
P 1870 code, can this code be tied to programming???
I'm getting this code on the highway. I had recent
programming and this code started showing up shortly
there after.Could it be associated with shift firmness
on an A-4?
If not, any suggestions? Is it safe to program this
code out. I know it's used to detect slippage in the trans.
Thanks in advance... :confused: :confused:
Melting Slicks
Joined: Feb 2002
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From: Winston Salem NC
Re: P 1870 code, can this code be tied to programming??? (CAracer)
That code also shows up when the programming for new gears and TC is needed. Are you lossing power when you get the code?
Thread Starter
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From: Austin TX
Re: P 1870 code, can this code be tied to programming??? (jfpilla)
NO, performance is the same. It does shift very hard
under very light throttle, until I clear the code.
It seems to show up on extended highway driving
only. Driving around town does not cause any
issues or set codes.
It's a stock trans and I was just thinking I may have
too much shift firmness programmed into the trans?
under very light throttle, until I clear the code.
It seems to show up on extended highway driving
only. Driving around town does not cause any
issues or set codes.
It's a stock trans and I was just thinking I may have
too much shift firmness programmed into the trans?
Thread Starter
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Joined: Nov 2001
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From: Austin TX
Re: P 1870 code, can this code be tied to programming??? (jfpilla)
This is CAracer, the originator of this post. I took the
car back to the programmer and he made some
adjustments and the car performs great. No more
codes... I believe he programmed the converter to stay
locked longer and made some other adjustments to the
program. Anyway, he did a great job.
car back to the programmer and he made some
adjustments and the car performs great. No more
codes... I believe he programmed the converter to stay
locked longer and made some other adjustments to the
program. Anyway, he did a great job.
Team Owner
Joined: Apr 2001
Posts: 54,204
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From: S.W. Ohio. . . . . . NRA Life Member
Re: P 1870 code, can this code be tied to programming??? (CAracer)
the P 1870 code says there's more slippage in the drivetrain than what's considered "normal".
IMO you need to drive awhile with the TC locked before it will throw the code. I don't think the "slip determination" is made while the TC is not locked... that's why it generally takes a long drive on the highway to set the code.
If there is no malfunction with the A4 tranny or the TC; then it's most likely due to a rear axle ratio change that would of required reprogramming but didn't get it (or it wasn't done properely).
[Modified by Mike Mercury, 12:35 PM 6/14/2003]
IMO you need to drive awhile with the TC locked before it will throw the code. I don't think the "slip determination" is made while the TC is not locked... that's why it generally takes a long drive on the highway to set the code.
If there is no malfunction with the A4 tranny or the TC; then it's most likely due to a rear axle ratio change that would of required reprogramming but didn't get it (or it wasn't done properely).
[Modified by Mike Mercury, 12:35 PM 6/14/2003]
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Joined: Nov 2001
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From: Austin TX
Re: P 1870 code, can this code be tied to programming??? (Mike Mercury)
Hi Mike, Before the reprogramming, it would set the
code in as little as two or three miles at freeway
speed. I took the same route after the reprogramming
and no codes. I'm pretty sure it's corrected. In the past
at freeway speeds with a slight grade, the p 1870 code
would always come up.
The programmer subjected the car to a 30% load while on
the dyno. The converter stays locked until the trans down
shifts to third.
Thanks again for all you help. :) :)
code in as little as two or three miles at freeway
speed. I took the same route after the reprogramming
and no codes. I'm pretty sure it's corrected. In the past
at freeway speeds with a slight grade, the p 1870 code
would always come up.
The programmer subjected the car to a 30% load while on
the dyno. The converter stays locked until the trans down
shifts to third.
Thanks again for all you help. :) :)
