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C30 P0133 code

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dn10r
Posts: 1
Joined: 16 Nov 2019, 09:03
Year and Model: 2011 c30
Location: crown point

Post by dn10r »

I have 2011 C30 heavily modded with k16 turbo and keep getting a P0133 code, Bank 1 Sensor 1 slow to respond code. I have replaced the upstream wide bad and downstream o2 sensors. Still getting code. Any idea's?? I did replace the mass air flow sensor because the wire broke with just a stock one. Looks like the wire is bent just a bit, but cars runs great. Could the MAF sensor be it? Do I need and upgraded one since the car is modded?

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RickHaleParker
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Post by RickHaleParker »

Check for opens and shorts in the O2 wiring harnesses.
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1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
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