Code P0125 / Clicking Sound
04-25-12, 07:08 AM
#16
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Join Date: Jun 2005
Location: VA
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GS4 you are the man! Mechanic called me and said the wire going to the rear oxygen sensor was lose after he opened up the housing (it was being connected by 1-2 wires and when he drove it it got lose and messed up) everything is fixed and the code is gone. Hope anyone else who gets this code can get it fixed!!! I know it's been a pain in the *** looking at the check engine light last couple of months. Thanks for everyone's else, especially GS4s. You guys are great! 
04-25-12, 04:13 PM
#18
I JUST went through this po125 and po135 codes. Changed thermostat and replaced with new coolant. CEL is gone. But unfortunately I only drove the car 20 miles since the work and it usually takes at least 50+ miles to come back if there is still a problem.
04-25-12, 04:16 PM
#19
Lol, and he said one of my pre-cat O2 sensors wasnt fully plugged in...it popped out. They were working on re-welding my headers the prior week. So, who knows which item fixed mine. It cost me another 80 bucks though for the t-stat, install and fluid change. Oh well...
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