06-22-2023, 11:30 PM | #1 |
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pwg n55 code 120308
hey whats up guys, i was wondering if anyone knows the solution to this code.
code 120308- charging pressure control. plausbility pressure too low. recently just did the boost selonoid thinking that was gonna fix it but it didnt. the light seems to come on when im on full throttle at around 4500 rpm. as for mods, i have a cts turbo intake and a resonator delete. one of my buddies was telling me it could possibly be my boost lines. also that it could be a bad diverter valve. anyone have prior experience with this? also unplugged my exhaust flap and capped it. i know some people were saying this was giving them the code. smoked tested already and fixed all boost leaks as well. charge pipes were fine. Last edited by n55demon; 06-22-2023 at 11:42 PM.. |
06-24-2023, 03:12 PM | #3 |
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After a ridiculous amount of troubleshooting, turned out I was getting that code bc my wastegate was slightly sticking open. Only happened sometimes, what a pain that was to find!
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2013 535xi M Sport (PWG) // PS2 // Spool fx150 // MHD // xHP // FTP Inlet // FBO: AR HF DP, Wagner IC, BMS Intake, VRSF CP
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06-27-2023, 04:08 PM | #4 |
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06-27-2023, 05:06 PM | #5 |
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Put in a PS2 instead
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2013 535xi M Sport (PWG) // PS2 // Spool fx150 // MHD // xHP // FTP Inlet // FBO: AR HF DP, Wagner IC, BMS Intake, VRSF CP
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06-29-2023, 12:43 PM | #6 |
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how did you know it was the waste gate? ive read a lot about people getting the code from: boost leaks, bad boost solenoids, wastegate, their catted dp from burbles, spark plugs, even as far as the exhaust valve flap, which i have mine open and capped.
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06-29-2023, 01:16 PM | #7 |
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I troubleshooted all that, then manually felt the wastegate sticking when trying to move it. But that was after the turbo was already off and the ps2 was going on, never got the code since having the ps2 on, so I should say there's a chance it wasn't actually the wastegate but that was the conclusion
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2013 535xi M Sport (PWG) // PS2 // Spool fx150 // MHD // xHP // FTP Inlet // FBO: AR HF DP, Wagner IC, BMS Intake, VRSF CP
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07-04-2023, 10:40 PM | #8 | |
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07-04-2023, 11:41 PM | #9 | |
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