OBDII code help
#1
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Location: Long Island, NY
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Year: 1999
Model: Cherokee
Engine: 4.0 I6
OBDII code help
Hey so i just bought my jeep and it was throwing multiple codes, I pluged it into my scanner and found out it was the radiator fan relay, a/c clutch relay, the O2 sensor was unplugged, the EVAP purge solenoid, and the nuetral saftey switch.
I fixed all the problems expect the evap solenoid and the NSS (havnt bought them yet) but when I plug my scanner in it reads code P0121 TPS pedal position.... any ideas on how to fix that or waht to do?
Truck is a 99 xj Sport 4DR 4.0L I6
I fixed all the problems expect the evap solenoid and the NSS (havnt bought them yet) but when I plug my scanner in it reads code P0121 TPS pedal position.... any ideas on how to fix that or waht to do?
Truck is a 99 xj Sport 4DR 4.0L I6
#2
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Location: Richmond, VA
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Year: 2000
Model: Cherokee
Engine: 4.0 liter
All I can tell you is I got a code 121 and 123 a few weeks back (as well as high idle speed on start up, lock up torque converter not locking up and cruise control not working).
I replaced the TPS and that didn't fix it. I cleaned the inside of the throttle body with carb. cleaner and a toothbrush.
Right now its running fine again (no codes and everything works) with the original TPS re-installed.
There was a black ring of crud built up in the throttle body. That's what the carb cleaner and toothbrush cleaned out.
I replaced the TPS and that didn't fix it. I cleaned the inside of the throttle body with carb. cleaner and a toothbrush.
Right now its running fine again (no codes and everything works) with the original TPS re-installed.
There was a black ring of crud built up in the throttle body. That's what the carb cleaner and toothbrush cleaned out.
#3
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Year: My Jeep is a GMC
NSS can be cleaned (I guess you have not yet priced a new one!)
http://www.jpmagazine.com/techarticl...tch/index.html
http://www.jpmagazine.com/techarticl...tch/index.html
#4
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Year: 1999
Model: Cherokee
Engine: 4.0 I6
yea my friend works at a wholesale autopart store so i ordered a new NSS and im gunna see if that solves my problem, ill let you know how it goes.
Thanks for the help guys!
Thanks for the help guys!
#5
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Year: 1997
Model: Cherokee
Engine: 4.0
for the purge sol. the pcm probably needs to be updated with new software.the code is P0443? evap purge circuit? there is an update
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