TonetheJackal
08-28-2015, 09:54 PM
Ok, well I was hoping I could solve my problems after reading everyone else's threads(which have been great) , but that has been to no avail as of yet so here it goes.
I've got an 08 E90 with and JB4 running map 1, nothin fancy. Records show the car previous had the HPFP replaced. A year ago I replaced the tank fuel pressure regulator because it started leaking.
Two weeks ago I put the hammer down to make a light and I got a rumble and minor loss of power, but car was drivable. Code read misfire on cyl 4. I replaced all the plugs with OEM's since I bought the car with 57K and am at 97K and they hadn't been changed. As they didn't solve the problem i replaced the Cyl 4 coil and was apparently back in business. Tested at WOT a few times and no probs although it didn't seems as brisk as before but not quite sure. Drove to work for a week.
Last week I put the hammer down at a light again, and this time got major loss of power and putted home. Luckily it was at my neighborhood entrance. Now I showed multiple codes: 30BB ( injector bank 2 or ECU internal error, 29D1 and 29D2 (5 & 6 cyl misfires), 2A2C ( fuel mixture control 2) and the 2AAF. I had also previously had a vanos code a few weeks back but cleared it and it didn't return.
Since I had a bank code I decided to flush the injectors and bought a kit. Kit directions were not clear and I hooked it up to a sensor port on the fuel rail and gas kept squirting out of my connection. I didn't know the pressure at the rail was so high(700 psi per one thread). I then pulled the fuse on the low pressure fuel pump and the leaks stopped and the flush actually went in. Used half Seafoam half fuel as it said on the Seafoam can for flushing systems. I later figured out I should have made the connection at the LPFP. Anyway, after the 'flush' the car ran even worse.
Read about people have similar loss of power at WOT and rough idles and Vanos solenoid replacement fixes. Today I replaced the upper vanos solenoid(which looks clean, just oily), pulled the lower solenoid and rinsed in fuel and blew out and re-installed and car still runs like crap.
Latest codes are 30BB, 29D1, 29D2, 2AAF, 2c3c (precat02 sensor disconnected bank 2 ), AND 2d60 (fuel mass monitoring).
I am hesitatant to replace all the coils and all the injectors as I would find it difficult to believe there would be multiple failures at once. Oh, and I have not had BMW replace the recalled battery power cable, although one guy did tell that fix seemed to solve problems similar to mine. I just don't want to bring the car in for that fix and if it doesn't fix my poor running, I may be temped to let BMW fix it for expected big $$$$.
My next step is to pull the JB4. I wondering if the LPFP may be a problem but I initially didn't get any fuel code except for 2AAF which I hear is link to the JB4 and no big deal. Thanks in advance for any advice. I WILL post my fix when I get, unlike some other threads I've been reading.
- - - Updated - - -
Also, today when I pressed the throttle, my fuel gage went to empty for several seconds, then went back to normal. Making me think the Juice Box is on the fritz.
I've got an 08 E90 with and JB4 running map 1, nothin fancy. Records show the car previous had the HPFP replaced. A year ago I replaced the tank fuel pressure regulator because it started leaking.
Two weeks ago I put the hammer down to make a light and I got a rumble and minor loss of power, but car was drivable. Code read misfire on cyl 4. I replaced all the plugs with OEM's since I bought the car with 57K and am at 97K and they hadn't been changed. As they didn't solve the problem i replaced the Cyl 4 coil and was apparently back in business. Tested at WOT a few times and no probs although it didn't seems as brisk as before but not quite sure. Drove to work for a week.
Last week I put the hammer down at a light again, and this time got major loss of power and putted home. Luckily it was at my neighborhood entrance. Now I showed multiple codes: 30BB ( injector bank 2 or ECU internal error, 29D1 and 29D2 (5 & 6 cyl misfires), 2A2C ( fuel mixture control 2) and the 2AAF. I had also previously had a vanos code a few weeks back but cleared it and it didn't return.
Since I had a bank code I decided to flush the injectors and bought a kit. Kit directions were not clear and I hooked it up to a sensor port on the fuel rail and gas kept squirting out of my connection. I didn't know the pressure at the rail was so high(700 psi per one thread). I then pulled the fuse on the low pressure fuel pump and the leaks stopped and the flush actually went in. Used half Seafoam half fuel as it said on the Seafoam can for flushing systems. I later figured out I should have made the connection at the LPFP. Anyway, after the 'flush' the car ran even worse.
Read about people have similar loss of power at WOT and rough idles and Vanos solenoid replacement fixes. Today I replaced the upper vanos solenoid(which looks clean, just oily), pulled the lower solenoid and rinsed in fuel and blew out and re-installed and car still runs like crap.
Latest codes are 30BB, 29D1, 29D2, 2AAF, 2c3c (precat02 sensor disconnected bank 2 ), AND 2d60 (fuel mass monitoring).
I am hesitatant to replace all the coils and all the injectors as I would find it difficult to believe there would be multiple failures at once. Oh, and I have not had BMW replace the recalled battery power cable, although one guy did tell that fix seemed to solve problems similar to mine. I just don't want to bring the car in for that fix and if it doesn't fix my poor running, I may be temped to let BMW fix it for expected big $$$$.
My next step is to pull the JB4. I wondering if the LPFP may be a problem but I initially didn't get any fuel code except for 2AAF which I hear is link to the JB4 and no big deal. Thanks in advance for any advice. I WILL post my fix when I get, unlike some other threads I've been reading.
- - - Updated - - -
Also, today when I pressed the throttle, my fuel gage went to empty for several seconds, then went back to normal. Making me think the Juice Box is on the fritz.