i was leaving my house when me car shifted weird i looked down a noticed the "service engine light" on. My car seems to be running fine.anyone have these codes? Whats the life on a automatic trans? how much is this going to cost ?

Throttle Position Sensor (Automatic Transmission)
Front Left Heated O2 sensor
Torque Converter clutch solenoid valve (Automatic Transmission)
Improper Shifting to Fourth Gear (A/T)
Improper Shifting to Second Gear (Automatic Transmission)
Improper Shifting to First Gear (A/T)
Closed Throttle Position Switch

thanks....

 

Suggestions:

1) The 02 Sensor is unrelated, but does need to be addressed.
2) The likely issue regarding your transmission is related to your Throttle Position Sensor being broken, etc, as it can cause the transmission codes. 'Tis best to replace the TPS first and then go from there rather than going ***** out replacing the tranny.
3) The actual scan (Pxxxx) or DTC (xxxx) codes would be more helpful for diagnosis.

Regarding #2, this came up in the past week or so. This thread:

http://forums.maxima.org/showthread....hreadid=143365

Has a post in there by yours truly where I allude to the possibility of the TPS needing replacement INSTEAD of the transmission being the problem. Check those links out for the part number for a new TPS and how to install it. Member StephenD has an excellent post in there that explains it well.

Most likely, you need an O2 sensor anyway.

What I would do is replace the TPS and maybe the O2 sensor, reset the ECU and see if the check engine light returns. You're out probably $100 to $150 if you do both of those..........

 

Thank you very much !

 

five speed swap
i agree wif bill too, swap out the tsp then go from there, if you can see if anyone is willing you to "borrow" the tsp so you could plug that in and see if you still throw codes, if it works, then go buy another tsp, if not then work from there.

 

tsp = tps






Good suggestion mingo.....both on the "swapping" and the 5-speed swap.

 

AUTO FOR LIFE !!!

 

riiiiiiiiiight that's what kevin said too...

 

as much as i want a 5-speed swap i dont think its going to happen anytimesoon.. Anyways the car shifted hard again ... for some reason this only takes place in the morning. any ideas ?

 

Uh, replace the TPS. Then reset the ECU, as stipulated to in my first post here.

 

what is a tps and how easy is it to install/remove? thanks!
and how come i have the problem in the morning ??

 

the tps is the throttle position sensor, it shouldn't be hard to remove and reinstall.

 

As stated in my first post, the info is in this link:

http://forums.maxima.org/showthread....hreadid=143365



I'm feeling like I wasted my time.