juser250

I reset my computer and when I checked the codes, 10-pcm came up. What is that? Thank you

BruceF

That's just the category section. You need to let it scroll or manually page through the display to see what, if any, codes are actually set.

juser250

ok it said 1 code P1715H under 10-pcm . i am having a problem with my rpms stopping at 5-5 is htis because of this code.

thanx

BruceF

Sorry. I don't have P1715 listed in my 1999 manual. What year is your car. Maybe someone else can look it up for you.

Also, what do you mean that your "RPMs are stopping at 5-5"?

juser250

Sorry, the code that is wrong is P1571H, which is the Traction Control Torque Request Circuit. The problem only occurs when traction control is enabled (turned on) The problem, if you didnt understand it, is that under acceleration, when the tach reaches 5500 rpm's, i hear a loud pop, or boom sound, and then acceleration slows very fast and then takes around a few more seconds to reach 6,000 rpms. Could this have someting to do w/ traction control or what? Please someone must have had this problem> thank you,
Ian

BruceF

When P1571 gets set, it usually doesn't cause a problem. However, before this gets set, the PCM will have a few seconds in which it thinks there is too much torque and it cuts back on the injectors. That's probably the popping you heard.

I recall in one of your other posts on this that you have a 97. I recall something about this code and 97s. I don't think there is a bulletin on it. But, there is probably some preliminary information. Your dealer should be able to look it up in the SI2000. And they may have to call the tech support number for more details.

c4c5specialist

HI there,
Bruce is correct here, as the 1571h is a normal characteristic of the 97 calibration, and it NOT a problem.\
This is a known condition, and GM technical can confirm this through your dealer.
Best to you, c4c5