One thing after another....HELP
#1
01-01-2010 | 12:06 PM
Thread Starter
|
Newbie
Joined: Jan 2010
Posts: 1
From: Sacramento Delta, CA
One thing after another....HELP
1996 Z28 V8 383 Stoker with high end mods....all legal....automatic...driving along, foot on accelerator and then rpms but no forward motion. Leave the car overnight, starts up, goes but same again then shuts down, dieseling, and clunk clunk. Tow it home and it looks like the wiring all got pretty hot, no temp showed this, didn't drive it far, maybe 20 feet or more. Changed oil, filter, tranny fluid, filter, flushed radiator, no more problem except high idle, changed TPS still high, and bucks when going into drive. Has 1860 TCC PWM code which no one seems to know about no other codes and now starting problems, jumped it two or three times and then zinggggg, starter blew.....??? What the heck is going on.....and seems to have gotten a nice front seal oil leak in the process.....almost ready to sell her except only 15,000 on motor and 2000 on tranny....
#2
01-01-2010 | 01:23 PM
April 2011 ROTM
Joined: Mar 2009
Posts: 21,759
From: Tokeland, Washington
ROTM Winner's Club
how old is and what kind of opti do u have? im thinkin the code has something to do the the torque converter control. when u had rpms and no go was it like the tranny was out of gear? or more like it was running crapy?
#3
01-01-2010 | 04:23 PM
Tech Droid
Joined: Aug 2005
Posts: 9,215
From: North East PA
One problem seems to be the transmission because the RPM are increasing but the car is not reacting.
The 1860 code is set when the PCM does not get the expected feedback from the TCC solenoid valve which controls the application of the TCC.
When that happens:
The PCM illuminates the malfunction indicator lamp (MIL) during the second consecutive trip in which the Conditions for Setting the DTC are met.
The PCM inhibits TCC engagement.
The PCM inhibits 4th gear if the transmission is in hot mode.
Also:
The PCM freezes shift adapts from being updated.
The PCM records the operating conditions when the Conditions for Setting the DTC are met.
The PCM stores this information as Freeze Frame and Failure Records.
The PCM stores DTC P1860 in PCM history during the second consecutive trip in which the Conditions for Setting the DTC are met.
Check the Freeze Frame data with a scanner.
Changing the TPS is not going to fix the high idle problems. Check the IAC valve, and possible vacuum leaks.
The 1860 code is set when the PCM does not get the expected feedback from the TCC solenoid valve which controls the application of the TCC.
When that happens:
The PCM illuminates the malfunction indicator lamp (MIL) during the second consecutive trip in which the Conditions for Setting the DTC are met.
The PCM inhibits TCC engagement.
The PCM inhibits 4th gear if the transmission is in hot mode.
Also:
The PCM freezes shift adapts from being updated.
The PCM records the operating conditions when the Conditions for Setting the DTC are met.
The PCM stores this information as Freeze Frame and Failure Records.
The PCM stores DTC P1860 in PCM history during the second consecutive trip in which the Conditions for Setting the DTC are met.
Check the Freeze Frame data with a scanner.
Changing the TPS is not going to fix the high idle problems. Check the IAC valve, and possible vacuum leaks.
Last edited by z28pete; 01-01-2010 at 04:32 PM.
Thread
Thread Starter
Forum
Replies
Last Post
