[peepayy_91]

I turn my car on and everything seems to be working fine no CEL/SES, no codes. Everything checks out on the dash, but when i get on the road and try to accelerate it has a loss of power almost bogging down. or like it might be going into limp mode? Not sure what it could be. If it is the HPFP then its obviously covered under the recall.

and as for the car, I'm letting it sit right now before attempting to start it up and drive again.

It's a 2007 E92 335i
and all it has is a JB4,DCI and Muffler delete.

any opinions or advice?

[BMWsky]

Without codes, we're all guessing. With that being said, my car would sometimes feel like there was no power and would take forever to get up to speed. Every once in a while, I'd get strange jumps in my RPM's at start up; all this would happen and never throw any codes. One day I was driving home and hit the throttle in 6th gear under load and got this strange feeling like my clutch was slipping. I gave a bit more gas and then went into limp mode. I got it home and checked codes and sure enough, my HPFP went. I uninstalled my Cobb AP and took the car out and sure enough, under load I could replicate it. Took it to the dealership and had it replaced. It's been over a year with no issues since, fbo and tracking the car at least once a month.

[peepayy_91]

Originally Posted by BMWsky

Without codes, we're all guessing. With that being said, my car would sometimes feel like there was no power and would take forever to get up to speed. Every once in a while, I'd get strange jumps in my RPM's at start up; all this would happen and never throw any codes. One day I was driving home and hit the throttle in 6th gear under load and got this strange feeling like my clutch was slipping. I gave a bit more gas and then went into limp mode. I got it home and checked codes and sure enough, my HPFP went. I uninstalled my Cobb AP and took the car out and sure enough, under load I could replicate it. Took it to the dealership and had it replaced. It's been over a year with no issues since, fbo and tracking the car at least once a month.

OK, yeah my car is out of warranty so it wouldn't matter if i left the JB4 in or not. if it continues ill just get it taken to the dealership. thanks for the input!

[Mike@N54Tuning.com]

Do a JB4 log and email it in to BMS. Also read the codes and email those in as well.

Mike

[peepayy_91]

Originally Posted by Mike@N54Tuning.com

Do a JB4 log and email it in to BMS. Also read the codes and email those in as well.

Mike

OK will do

[peepayy_91]

had no choice but to drive it to work, on my way back the thermostat code came on and the temperature was a lot higher than normal.

[Figure807]

Check to see how much coolant you have - replace my water pump and my hpfp about two weeks ago. Even if you don't show a code for hpfp, have your tech check the pressure.

[peepayy_91]

Originally Posted by Figure807

Check to see how much coolant you have - replace my water pump and my hpfp about two weeks ago. Even if you don't show a code for hpfp, have your tech check the pressure.

will do that tomorrow morning although I'm not getting a code for coolant.

[Jeff@TopGearSolutions]

Originally Posted by peepayy_91

had no choice but to drive it to work, on my way back the thermostat code came on and the temperature was a lot higher than normal.

Which temperature was higher? Cause your dashboard only shows oil temperature.

Can you elaborate on what temperature was higher and also if you have coolant in your reservoir. You should really have the car checked out if its throwing codes and going into limp mode, you should also remove your tune and any other mods.

[mo0di]

I am having the same problem in my car
I think it's turbo

[mo0di]

I am having the same problem in my car
I think it's turbo

[peepayy_91]

it seems to be the water pump/thermostat