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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > P0238 code



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      06-01-2015, 05:58 PM   #1
hybridel
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P0238 code

Hey guys, I've been getting the following code come up every time I do a 3rd gear pull. I'm not sure if its a hose popping off, or just the car abruptly going into limp mode but there is a popping sound and the whole car shakes.

Once I restart the car, everything is fine again.

I have a pro tune with the following mods
- Active intercooler
- ER Chargepipe
- Forge diverter valves

I've checked all of the hoses and connections that I can see, and everything looks fine. I don't have an Accessport anymore, but I do have Torque.

What parameters should I be logging? I'll set it up and post some logs up when I get home

Any ideas?
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      06-01-2015, 06:33 PM   #2
335NJ
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Get a log if you can. That code is for boost pressure in circuit A sensor reading too high (found on another forum).

Is your TMAP sensor plugged in, and does it look ok?
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      06-02-2015, 08:56 AM   #3
hybridel
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everything looks normal to me

someone suggested it may be the spring in the diverter valve failing?

I'll post some logs up when I get home from work
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