Can't rev past 4000rpm CEL!!

sam0329 · 08-13-2015, 10:58 PM

Hi all,

Tonight when I was driving home, my car went into limp mode and have a CEL. I use a OBD II reader and found P157F. I tried to search but can't find too much info. Any ideas? Thanks very much!

Amirsm3 · 08-13-2015, 11:21 PM

If you google the code, it looks like a throttle actuator is on it's way out - or has already failed.

If possible, see if someone with a more specific code reader can tell you which bank it is - if it's an actuator at all.

Matt@AUTOcouture · 08-14-2015, 07:23 PM

Sounds like throttle actuator to us, trying to remember off the top of our heads.

sam0329 · 08-15-2015, 11:26 AM

Thanks all. I think it's the throttle actuator as well. So I clear the code and it didn't come back yesterday. It's not dead yet but it's going for sure. Now I just have to wait for the code to pop up and drive to the stealership.

08-13-2015, 10:58 PM	#1
sam0329 Second Lieutenant 7 Rep 205 Posts Drives: 2011 BMW E92 M3 Join Date: Jun 2011 Location: Edmonton AB iTrader: (3)	Can't rev past 4000rpm CEL!! Hi all, Tonight when I was driving home, my car went into limp mode and have a CEL. I use a OBD II reader and found P157F. I tried to search but can't find too much info. Any ideas? Thanks very much!
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08-13-2015, 11:21 PM	#2
Amirsm3 Brigadier General 540 Rep 3,482 Posts Drives: 2011 Space Grey e90 M3 Join Date: Feb 2014 Location: Williams/Flagstaff, AZ iTrader: (3)	If you google the code, it looks like a throttle actuator is on it's way out - or has already failed. If possible, see if someone with a more specific code reader can tell you which bank it is - if it's an actuator at all. __________________ 2011 e90 M3 Space Grey DCT ZCP- eAs, BMW Performance, Agency Power, Macht Schnell, iND, Milltek, Volk, Challenge, Stoptech, Ohlins BMWCCA:518970
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08-14-2015, 07:23 PM	#3
Matt@AUTOcouture BimmerPost Supporting Vendor 4267 Rep 2,331 Posts Drives: V8 tricycle Join Date: Apr 2013 Location: Fair Lawn, NJ iTrader: (0)	Sounds like throttle actuator to us, trying to remember off the top of our heads. __________________ 15-01 Pollitt Drive Unit 8A Fair Lawn, NJ 07410 t: 201-666-3500 c: 201-846-4995 e: Matt@autocouturemotoring.com w:http://autocouturemotoring.com
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08-15-2015, 11:26 AM	#4
sam0329 Second Lieutenant 7 Rep 205 Posts Drives: 2011 BMW E92 M3 Join Date: Jun 2011 Location: Edmonton AB iTrader: (3)	Thanks all. I think it's the throttle actuator as well. So I clear the code and it didn't come back yesterday. It's not dead yet but it's going for sure. Now I just have to wait for the code to pop up and drive to the stealership.
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