[mayno]

I have a 2008 335i AT, Procede v1.45 (yes, I know it's old), mileage about 27K miles; have had the Procede ever since it was first sold and haven't had problems for a long time.

anyway, here's what happened: I was almost home after driving from work about 18 miles away (so yes, the car was warmed up)...was driving normal. got w/in a mile from home, then suddenly my car goes into limp mode, the SES light comes on and my idle is around 600 RPM and it's a very rough idle, so rough the car is shaking. I thought it was going to stall at the stop light.

when the light turned green i drove a block and pulled over. while accelerating slightly, the car was sputtering felt like I was running on 5 cylinders or something and that there was some sort of misfiring.

i shut down the motor and waited for 1 minute and restarted the motor. the rough idle was gone and the car ran normal....then about a minute later, the same problem reoccurs: limp mode, SES and rough idle, sputtering while accelerating.

one clue is that I filled up a full tank of gas this morning at a 76 gas station I have NEVER been to. however, I don't want to automatically diagnose this as a bad tank of gas.

any other ideas???

[OpenFlash]

Originally Posted by mayno

I have a 2008 335i AT, Procede v1.45 (yes, I know it's old), mileage about 27K miles; have had the Procede ever since it was first sold and haven't had problems for a long time.

anyway, here's what happened: I was almost home after driving from work about 18 miles away (so yes, the car was warmed up)...was driving normal. got w/in a mile from home, then suddenly my car goes into limp mode, the SES light comes on and my idle is around 600 RPM and it's a very rough idle, so rough the car is shaking. I thought it was going to stall at the stop light.

when the light turned green i drove a block and pulled over. while accelerating slightly, the car was sputtering felt like I was running on 5 cylinders or something and that there was some sort of misfiring.

i shut down the motor and waited for 1 minute and restarted the motor. the rough idle was gone and the car ran normal....then about a minute later, the same problem reoccurs: limp mode, SES and rough idle, sputtering while accelerating.

one clue is that I filled up a full tank of gas this morning at a 76 gas station I have NEVER been to. however, I don't want to automatically diagnose this as a bad tank of gas.

any other ideas???

You got misfire Easy to confirm with a OBD2 reader. With that many miles on your tune, it's time to replace your plugs. That will fix it.

Cheers
shiv

[mayno]

Originally Posted by shiv@vishnu

You got misfire Easy to confirm with a OBD2 reader. With that many miles on your tune, it's time to replace your plugs. That will fix it.

Cheers
shiv

thanks, I need to get a reader. is it easy to replace the plugs? i did order V3 PNP a few weeks ago. just haven't had the time to install it.

yeah, i believe i installed v1.45 when my car had 2K miles or so. thanks. i will try that assuming it's easy and i have the right tools.

[335iPaul]

Failed HPFP. This is covered under a recall, need to take it to the dealer.

[cn555ic]

1.47.....WOW that many decades ago! lol......To tell you the truth, it happened to me once also when I decided to change gas brands for the one time and my car went into limp mode....Went back to my old SHell 93 and it has never happened again...It might be coincidence, but who knows!

[mayno]

Originally Posted by 335iPaul

Failed HPFP. This is covered under a recall, need to take it to the dealer.

nah, i will do what Shiv recommended first before i go that route.

[335iPaul]

Originally Posted by mayno

nah, i will do what Shiv recommended first before i go that route.

Let me know how it turns out. (Hopefully you dont spend to many days driving around in Limp mode and then figure out it is the HPFP like so many other people have had to have replaced in the e90 335i).

[mayno]

Originally Posted by 335iPaul

Let me know how it turns out. (Hopefully you dont spend to many days driving around in Limp mode and then figure out it is the HPFP like so many other people have had to have replaced in the e90 335i).

ok, i got a obd2 reader, and the code is P0306. cylinder 6 misfire detected.

crap, no what? is this a spark plug issue?

[SoCalTech]

Let me know if you need help changing your spark plugs.

[mayno]

Originally Posted by SoCalTech

Let me know if you need help changing your spark plugs.

so is it definitely my spark plugs? if it is, i would appreciate your help.

[SoCalTech]

If it's a misfire, it could be several things. Since you are tuned, spark plugs are the most likely cause. Even if it isn't the cause, it's a good idea to change them out, and then you can go from there.

[cn555ic]

27K with a tune, I would think Shiv might be correct with the spark plugs...change them out first to see if it addresses the issues!

[Icyhot85]

i had the same problem ended up being a bad injector

[mayno]

Originally Posted by Icyhot85

i had the same problem ended up being a bad injector

really, did you change plugs first and then figured out it was the injector later, or did you just go to the dealer and had them figure it out?

[BruinMD]

Originally Posted by Icyhot85

i had the same problem ended up being a bad injector

Same problem. Rough idle on start-up, then SES and limp. Misfire codes in cylinders 5 and 6. Dealer said it was the injectors which were replaced. Interestingly, I had been running a tune as well.

[mayno]

Originally Posted by BruinMD

Same problem. Rough idle on start-up, then SES and limp. Misfire codes in cylinders 5 and 6. Dealer said it was the injectors which were replaced. Interestingly, I had been running a tune as well.

crap, now i'm gonna have to remove the Procede and take it to the dealer. thanks for the info though.

[mayno]

happened again this morning. this time it was P0302 cylinder 2 misfire detected. (first one was cylinder 6).

can't wait till my plugs come in. hopefully that'll fix these damn codes.

[Sniz]

do you have the spark plug socket? Its a crazy lookin over priced thing.

[mayno]

Originally Posted by Sniz

do you have the spark plug socket? Its a crazy lookin over priced thing.

no, not yet. it's $59 which isn't too bad.
http://www.turnermotorsport.com/html...ID=83300495560
still negotiating w/ a guy on this board to do it for X-dollars.

what's a complete ripoff is the N52/N54 Spark Plug Torque Adpater Tool for $169!!! you can buy a brand new torque wrench for about $70, and you'll be able to use it for all other projects. with the N52 torque adapter, it only has 1 setting.

[Ilma]

Originally Posted by Sniz

do you have the spark plug socket? Its a crazy lookin over priced thing.

Tell me about it.....a friend of mine bought me the BMW spark plug socket via the dealership.

They hosed him for over $100 !!!!!

I was walking through a local automotive parts store yesterday and saw a 14mm 12 point deep socket for $3.95.

That is why they are called stealerships.

[OpenFlash]

Originally Posted by mayno

happened again this morning. this time it was P0302 cylinder 2 misfire detected. (first one was cylinder 6).

can't wait till my plugs come in. hopefully that'll fix these damn codes.

Yep... it will fix it. If it doesn't, then you are probably looking at a fuel pump issue. Either way, I'd just take it to the dealership and let the take care of it. Just specify that they don't update your software.

Shiv

[iPodAddict]

Originally Posted by shiv@vishnu

Yep... it will fix it. If it doesn't, then you are probably looking at a fuel pump issue. Either way, I'd just take it to the dealership and let the take care of it. Just specify that they don't update your software.

Shiv

Curious... does the latest software not work with procede properly?