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C30 P0133 code

Help, Advice, Owners' Discussion and DIY Tutorials devoted to the second generation C70, S40 and V50 Volvos -- awkwardly model year 2004 ½ onwards -- plus where to go for advice and discussion on Volvo's sporty C30 Coupe powered by Volvo's ubiquitous inline 5-cylinder power plant.
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C30 P0133 code

Post by dn10r » Sat Nov 16, 2019 9:07 am

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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Re: C30 P0133 code

Post by RickHaleParker » Sat Nov 16, 2019 6:13 pm

Check for opens and shorts in the O2 wiring harnesses.

Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.

Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.

Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0,
Plant Torslanda Sweden.
1997 S90, B6304S, AW30-42, Bosch Motronic 4.4 - Sold

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