New limp mode for me (not HPFP)

eyelobes · 03-22-2012, 02:16 PM

So I was driving to work today and the transmission just felt like it opened up right after a couple of small weird shifts. The check engine light came on and i could push the gas to the floor and the engine would rev but would only accelerate very slowly, no power at all. Temp here is about 75F and my oil temp at the time was between 235-240 (230 seems to be my norm).

I don't know if my torque converter took a dump or what. When I pulled into work i shut the car off and turned it back on after a couple of minutes and the engine light cleared, but i didn't get a chance to drive it to check if it was shifting ok.

Did I overheat my transmission or something? SHould I take it in for warranty work?

p.s. I have a JB4 on map 5 with just a DCI and run 93 octane...should I just put the tune to map 0 or should I take it completely out if i take it to the dealer?

Thanks everyone.

chiaobaby · 03-22-2012, 02:28 PM

That prob the low pressure fuel sensor going bad. remove the jb4 dont chance you warranty.

Quote:

Originally Posted by eyelobes

So I was driving to work today and the transmission just felt like it opened up right after a couple of small weird shifts. The check engine light came on and i could push the gas to the floor and the engine would rev but would only accelerate very slowly, no power at all. Temp here is about 75F and my oil temp at the time was between 235-240 (230 seems to be my norm).

I don't know if my torque converter took a dump or what. When I pulled into work i shut the car off and turned it back on after a couple of minutes and the engine light cleared, but i didn't get a chance to drive it to check if it was shifting ok.

Did I overheat my transmission or something? SHould I take it in for warranty work?

p.s. I have a JB4 on map 5 with just a DCI and run 93 octane...should I just put the tune to map 0 or should I take it completely out if i take it to the dealer?

Thanks everyone.

Velocity26 · 03-22-2012, 02:32 PM

Reading the code should be your next step. If you are under warranty, DEFINITELY take the tune out before you visit the dealer.

eyelobes · 03-22-2012, 02:34 PM

I've had a bad HPFP before and this is completely different feeling, it felt like the torque converter on the transmisison was just "opened". Called BMW and the service tech said to bring it in in the morning.

Should i take out my DCI too?

eyelobes · 03-22-2012, 11:07 PM

So i plugged up the laptop and the code posted said I had a boost leak.....

So off to the dealership in the AM

marv85 · 03-22-2012, 11:27 PM

Take all your mods out. Not worth the risk

03-22-2012, 02:16 PM	#1
eyelobes Private First Class 67 Rep 179 Posts Drives: 440i GC Join Date: Nov 2011 Location: Augusta, GA iTrader: (0)	New limp mode for me (not HPFP) So I was driving to work today and the transmission just felt like it opened up right after a couple of small weird shifts. The check engine light came on and i could push the gas to the floor and the engine would rev but would only accelerate very slowly, no power at all. Temp here is about 75F and my oil temp at the time was between 235-240 (230 seems to be my norm). I don't know if my torque converter took a dump or what. When I pulled into work i shut the car off and turned it back on after a couple of minutes and the engine light cleared, but i didn't get a chance to drive it to check if it was shifting ok. Did I overheat my transmission or something? SHould I take it in for warranty work? p.s. I have a JB4 on map 5 with just a DCI and run 93 octane...should I just put the tune to map 0 or should I take it completely out if i take it to the dealer? Thanks everyone.
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03-22-2012, 02:32 PM	#3
Velocity26 Resident old fart 146 Rep 575 Posts Drives: 2010 335i M-Sport Join Date: Oct 2011 Location: Florida iTrader: (4)	Reading the code should be your next step. If you are under warranty, DEFINITELY take the tune out before you visit the dealer.
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03-22-2012, 02:34 PM	#4
eyelobes Private First Class 67 Rep 179 Posts Drives: 440i GC Join Date: Nov 2011 Location: Augusta, GA iTrader: (0)	I've had a bad HPFP before and this is completely different feeling, it felt like the torque converter on the transmisison was just "opened". Called BMW and the service tech said to bring it in in the morning. Should i take out my DCI too?
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03-22-2012, 11:07 PM	#5
eyelobes Private First Class 67 Rep 179 Posts Drives: 440i GC Join Date: Nov 2011 Location: Augusta, GA iTrader: (0)	So i plugged up the laptop and the code posted said I had a boost leak..... So off to the dealership in the AM
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03-22-2012, 11:27 PM	#6
marv85 Colonel 70 Rep 2,626 Posts Drives: '07 E92 335i MT Join Date: Jun 2010 Location: Bay Area iTrader: (7)	Take all your mods out. Not worth the risk __________________ '07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar. '05 C55 AMG SOLD - '22 Tesla M3P \| '10 E92 335i M, 6MT COBB, FBO, st2 LPFP, Mfactory LSD \| '07 E90 335i, PTF COBB E50, FBO, HFS4
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