[jseide36]

so long story short, i recently fixed my water pump about 2 weeks ago and just when i think i don't have to worry about this car anymore it surprises me again..

i am experiencing longer cranks in the morning followed by a not so strong start. idle is a little jumpy.. car drives ok under no boost/acceleration for a bit but once i give it any gas or the boost builds its jumps stutters and eventually gives me a half engine malfunction light..

i am current running e40 so im not sure if its worth filling back up with 93 and seeing if the problem persists, or just buying a fuel pump right away..thoughts??

2011 335i
Mods:
JB4
Flex Fuel Wires
BMS Downpipe
VRSF Intercooler
VRSF Chargepipe

[turbo_chris]

Long cranks and breaking up under boost are typically a result of a faulty HPFP. However, it could also be a failing injector. You would need to scan the faults to see if you have any fuel high pressure faults.

[JETmn]

I would check for boost leaks. It might be something from when you did the water pump.

[jseide36]

Originally Posted by turbo_chris

Long cranks and breaking up under boost are typically a result of a faulty HPFP. However, it could also be a failing injector. You would need to scan the faults to see if you have any fuel high pressure faults.

i only threw one code one time and it was 2BEA, since then it has never came back up..

Originally Posted by JETmn

I would check for boost leaks. It might be something from when you did the water pump.

the car was fine for about a week after doing the pump and then out of no where, with normal driving it just started doing this..

[mike@x-ph.com]

Originally Posted by jseide36

so long story short, i recently fixed my water pump about 2 weeks ago and just when i think i don't have to worry about this car anymore it surprises me again..

i am experiencing longer cranks in the morning followed by a not so strong start. idle is a little jumpy.. car drives ok under no boost/acceleration for a bit but once i give it any gas or the boost builds its jumps stutters and eventually gives me a half engine malfunction light..

i am current running e40 so im not sure if its worth filling back up with 93 and seeing if the problem persists, or just buying a fuel pump right away..thoughts??

2011 335i
Mods:
JB4
Flex Fuel Wires
BMS Downpipe
VRSF Intercooler
VRSF Chargepipe

Post a log so we can check how the HPFP is performing under pressure

[jseide36]

i wanted to post a log but the second i hit the gas it goes crazy, ill try and get one on the way home and post it an hour or two

[jseide36]

attached is the log i attempted to record, which also gave me the following codes:

2EFE
2F03
2F02
2EED
AAAA
0000

is it possible i have too much e85 in the tank? (car ran fine when filled up, a little less than half in the tank now)