Check Lights with codes

[preludeachris]

Hey I've recently bought a 95 GST and iv got it running pretty good now thanks to this forum. I just have a few more little things I need to take care of, two of which are the two codes on my check engine light.

First one is Po 125- Coolant temp for closed loop fuel control
Second one is Po170- fuel trim bank 1

I believe the 1st code is throwing the second code... but I could be wrong. I did a little bit of searching but I couldn't come up with anything that helped. Do I need to replace anything or is this a ECU thing that can be fixed with programming?
everything on the car is stock... except the BOV, the car runs pretty well for the most part except it dies every once and a while and it seems like its "jeerky" under throttle deceleration if that makes any sense? ... and yes the BOV is recirculated. and its boosts just fine..thanks for the input

not even a reply?

 

[banishedmunk]

Change the coolant temp sensor for the ECU as it is causing both the CEL's.

 

[preludeachris]

gotcha thanks

 

[preludeachris]

Seems to have cleared up my problem

 

[preludeachris]

NOTE:

My light came back on the next day it ended up being a front o2 sensor.