[e90_guy]

Yesterday morning I've rough idle when I started my car in the morning, BT scan tools reported 2 fault codes: 2FBF, 29CD. This morning I can barely started my car. So I decided to take out Procede Rev II. After I reverted everything back to stock, I cannot start my car and BT scan reported a bunch of new codes:

3100 boost-pressure control, deactivation
2A80 Inlet-Vanos variable cam control test, input signal
2A85 Outlet-VANOS variable cam control test
30CF Wastegate, input signal
30D0 Wastegate 2, input signal
2EF5 Map thermostat, input signal
2E85 Elctrical cooling pump, communication
2A9B Camshaft sensor outlet, signal
2A9A Camshaft sensor inlet, signal

I double check my ECU connection and everything seems to be OK. I just want to make sure it's not caused by the uninstallation of procede. Can anyone help? Thanks

[OpenFlash]

Something is plugged in backwards or not at all. I know you looked but look again

Shiv

[e90_guy]

I recheck again. There is no mistake. In fact all the connectors can go in one direction only. They won't slide into the slot if you don't put them in the correct location. What else can be wrong?

[OpenFlash]

Originally Posted by e90_guy

I recheck again. There is no mistake. In fact all the connectors can go in one direction only. They won't slide into the slot if you don't put them in the correct location. What else can be wrong?

Actually, if you are willing to push the connectors in hard enough, you can get them in the wrong slots. But you'd probably know this.

Did you confirm that you put the 12v orange wire in the green connector properly? If it put it in the wrong slot, you'd have the problems you are describing. Not plugging in one of the DME connectors would also cause this. The fact that the car isn't starting, suggests something not plugged in. Seen it a million times.

Shiv

[e90_guy]

It's possible that power connector is in wrong position.Which "slot" should it insert into?

[OpenFlash]

Originally Posted by e90_guy

It's possible that power connector is in wrong position.Which "slot" should it insert into?

All you need to do is look at the other side of the green connector and see what slot the matting wire is in. And make sure you reinsert the wire so that it mates with it. Otherwise, the whole DME isn't getting power.

Shiv

[e90_guy]

Shiv, you're the man. The power connector wasn't fully inserted into the slot. After I pushed the pin in, I can now start the car but it shook like crazy and was in limp mode. I cleared all the fault codes and rescanned with BT tool and it reported 29CD Misfirings, cylinder 1. Why didn't I get 2FBF code this time. Do I have HPFP problem or just a dirty plug? Thanks for your big help.

[OpenFlash]

Originally Posted by e90_guy

Shiv, you're the man. The power connector wasn't fully inserted into the slot. After I pushed the pin in, I can now start the car but it shook like crazy and was in limp mode. I cleared all the fault codes and rescanned with BT tool and it reported 29CD Misfirings, cylinder 1. Why didn't I get 2FBF code this time. Do I have HPFP problem or just a dirty plug? Thanks for your big help.

Glad to hear it! If you threw the fuel pump code before, it's likely that it is still a problem and is causing the misfire. Just wait it out and see if the fuel pump code comes back. When it does, go to the dealership.

shiv

[e90_guy]

I just started the car again and now I did not experience any shaking. Just like nothing had happen. I cleared all fault code and rescanned again but there was no fault code. I think my car only has problem with cold start (park overnight) but run fine when the engine is warm up. Any idea what the problem is?

[OpenFlash]

Originally Posted by e90_guy

I just started the car again and now I did not experience any shaking. Just like nothing had happen. I cleared all fault code and rescanned again but there was no fault code. I think my car only has problem with cold start (park overnight) but run fine when the engine is warm up. Any idea what the problem is?

HPFP rarely fail all of a sudden. You will have random fuel pressure codes here in there. Long cranking at times. For as much as several weeks/months prior to a final failure. Complete failures are pretty rare because the pumps almost always get replaced under warranty before that happens. Just keep on driving. If the fuel pressure upon injector release code keeps coming back, it's time to take it to the dealership. You will probably see misfire codes as well since that is caused by fuel pressure problems.

Shiv

[e90_guy]

I did have long crank this morning and also misfire code. Unfortunately I cleared all the fault codes and now the car ran without a hitch. I suppose I cannot just ask my dealership to investigate the problem. I guess I'll have to keep driving my car until the HPFP fail. Will it die while driving on the road or will it just happen when I start the car in the morning? Thanks for your help. BTW your customer support/service is top notch.

[D.B.S]

I had the same issues... was getting long cranks, rough idle's and a little shaking, took the PROcede out, still got long cranks, (between 2-5 second crank times). I took it to the dealer on wednesday... THey are still looking at it. (I even recorded my long cranks for proof and put it on a cd). I'm suppose to get an updated from the dealership tomorrow. Luckily they gave me a loaner, although it was a 328... Anyway, best of luck to you...

I miss my 335...

[OpenFlash]

Originally Posted by e90_guy

I did have long crank this morning and also misfire code. Unfortunately I cleared all the fault codes and now the car ran without a hitch. I suppose I cannot just ask my dealership to investigate the problem. I guess I'll have to keep driving my car until the HPFP fail. Will it die while driving on the road or will it just happen when I start the car in the morning? Thanks for your help. BTW your customer support/service is top notch.

It's unlikely to die while driving. What is more likely is that your long cranks will just get longer and more frequent. You an just take your car to the dealership and they will conduct a diagnostic on your pump. Chances are that it will fail the test and they will authorize a replacement and perhaps a DME software update. Both of which are good.

FWIW, my car has 65k miles on it and i had my HPFP replaced once at 30k miles. Not because it was giving me any problem but because it was a recall item. I wouldn't be surprised if it would still be running if I still had it. The fuel pump issue, as strange as it sounds, still only happens to a minority of n54 owners. But often enough for BMW to extend the warranty on the item to 100k miles and replace them without much question/hassle.

Shiv

[chromisdesigns]

Originally Posted by e90_guy

I did have long crank this morning and also misfire code. Unfortunately I cleared all the fault codes and now the car ran without a hitch. I suppose I cannot just ask my dealership to investigate the problem. I guess I'll have to keep driving my car until the HPFP fail. Will it die while driving on the road or will it just happen when I start the car in the morning? Thanks for your help. BTW your customer support/service is top notch.

What you can do is take it in, tell the SA about long cranks, shaking, etc., and ask them to do the test procedure. It may either throw a code and/or fail pressure test, then they will reprogram to the current level, test again, and probably wind up replaceing the pump. This is what I did after persistent long cranks but no CEL. It failed while they were testing it.

[D.B.S]

OP, as I stated yesterday, record your long cranks, and put it on a CD/DVD and take it with you to the dealer... I just got a call from my dealer, and based off my recordings and their testing, they yanked out the old HPFP and replaced it with one of the new ones, and they are updating the car's software as well, picking it up tomorrow... They didn't give me any problems, and it's all covered (under warranty). I took about a weeks worth of recordings before going in, but I'm sure if you've got a good relationship with your dealer, you won't even need the recordings. GL to you

[e90_guy]

I just got my car back. Basically the dealership did not replace the fuel pump but they did replace the fuel injector and spark plug in cylinder 1. They said there was only misfire event in the DME. I had one long crack last week. Can cylinder misfire cause long crank?