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2G Couple codes P0170, P0125 and P0135

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Ceezdsm99

Proven Member
108
17
Mar 11, 2022
California
My CEL light came on for three codes and I’m not sure if it’s one problem or 3 separate ones.

First one is P0170 which I know is the 02 sensor, ordered one but it wasn’t the right fit, had no choice but to run with the old one. After erasing the code and driving around No codes appeared. But after 15 min more of driving the CEL came back on for two extra codes, p0125 and p0135. I know p0125 is for the temp sensor, but I actually replaced that and did a coolant flush. Hoping this didn’t add more problems for me . Getting a new 02 sensor in tomorrow.

Symptoms : Once warmed up the car idles low and stalls out when I stop, When I turn on the condenser fans it idles better and keeps the rpm’s up and it dosent stall. GST is fully stock, with stock turbo .. most likely is blown out. I have another turbo it’s the 16 g, have all piping for it. Just never messed or worked on turbos before so I don’t know how 🤷🏽‍♂️
 
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Had that problem with my car man. Check your wiring man. Make sure nothing is grounding out on a positive wire or it will throw codes. Look for corrosion on the wires.
Changed the 02 sensor and cleared the code , also reset the ecu and now it runs and drives good , still smoked tho which is probably my turbo since it’s stock and probably on its way out , any advice ?
 
If your turbo is on its way out there is going to be a hella lot of turbo shaft play. If theres a leak on the turbo seal and it allows oil into the housing which leads into your engine there will be black smoke. Honestly check these things and message back.
 
If your turbo is on its way out there is going to be a hella lot of turbo shaft play. If theres a leak on the turbo seal and it allows oil into the housing which leads into your engine there will be black smoke. Honestly check these things and message back.
Wouldnt there be white smoke ? Will check for play
 
No, a ton of white smoke is an indication of water particles from steam aka blown headgasket where the antifreeze is getting into your cylinders. A Turbo seal leak it goes more of a darker smoke from the oil. You will know by taking off the turbo piping from your housing part of the turbo(the part that forces the aor from the outside to the intercooler). You will see oil in that pipe if your turbo seal is leaking.
 
No a ton of white smoke is an indication of water particles from steam aka blown headgasket where the antifreeze is getting into your cylinders. Turbo it goes more of a darker my head gasket isn’t
No coolant mixing with oil , just did a coolant flush and new temp sensor , not a head gasket issue
 
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