[Dkhan22]

I start up the car in shop rite parking lot, pull out of the parking lot and the car turns off.

I get a few warnings on dash and check engine. I try to start the car and it just keeps cranking, doesn't turn over.

Take it to a shop and have the codes read.

2ABC Engine ECU main relay
2ACC Engine ECU main relay switching delay
2E85 Electric water pump communication
2A9A camshaft sensor
3100 charging pressure control switch off
2ABD Engine electronics, boost pressure, over run

What has been done:
Battery checked
Vanos cleaned
Camshaft sensors replaced
Throttle body replaced (adapt reset)
Accelerator pedal changed
DME upgraded MSD80 to 81
Timing chain checked
DME relay checked
Fuses checked
Throttle body wires checked
Camshaft wires checked
Charge pipe Sensir changed to 3.5
So many elelctricals checked

Currently the car turns on. But idles rough. The rpm keeps jumping and it barely accelerates.

Oddly enough when you cover the throttle body hole with your hand and leave a small opening, it idled smoothly.


Jb4 removed. Flashed back to stock. This is a single turbo car.

I am looking for someone who knows this car very well to bring their computer and diagnose it. The shop already has a higher end snap on computer which is great but limited.

The car is in NYC.

[matt@ZNMPerformance]

Originally Posted by Dkhan22

I start up the car in shop rite parking lot, pull out of the parking lot and the car turns off.

I get a few warnings on dash and check engine. I try to start the car and it just keeps cranking, doesn't turn over.

Take it to a shop and have the codes read.

2ABC Engine ECU main relay
2ACC Engine ECU main relay switching delay
2E85 Electric water pump communication
2A9A camshaft sensor
3100 charging pressure control switch off
2ABD Engine electronics, boost pressure, over run

What has been done:
Battery checked
Vanos cleaned
Camshaft sensors replaced
Throttle body replaced (adapt reset)
Accelerator pedal changed
DME upgraded MSD80 to 81
Timing chain checked
DME relay checked
Fuses checked
Throttle body wires checked
Camshaft wires checked
Charge pipe Sensir changed to 3.5
So many elelctricals checked

Currently the car turns on. But idles rough. The rpm keeps jumping and it barely accelerates.

Oddly enough when you cover the throttle body hole with your hand and leave a small opening, it idled smoothly.


Jb4 removed. Flashed back to stock. This is a single turbo car.

I am looking for someone who knows this car very well to bring their computer and diagnose it. The shop already has a higher end snap on computer which is great but limited.

The car is in NYC.

30AMP Fuse for DME. Double check it.

When did the car finally crank over? (After what component was replaced)

What codes are currently stored in the DME?

Is the 3.5 bar sensor still installed?

[Dkhan22]

Originally Posted by matt@ZNMPerformance

30AMP Fuse for DME. Double check it.

When did the car finally crank over? (After what component was replaced)

What codes are currently stored in the DME?

Is the 3.5 bar sensor still installed?

The car cranked over after they crankshaft sensors were replaced. I'll get the current codes tomorrow.

[BimmerNugget]

You need a BMW specific scanner, either BavTech or Foxwell NT510/Schwabben. I prefer the Foxwell NT510 with BMW software because it's not VIN locked.

[matt@ZNMPerformance]

Originally Posted by Dkhan22

The car cranked over after they crankshaft sensors were replaced. I'll get the current codes tomorrow.

I'd be more than willing to take a look at it.... I just need to be informed 110% of what was done and why it was done. It seems like a ton was replaced just to get to the bottom of the problem, which makes it difficult for me to get to the root cause of the problem.

[Dkhan22]

[Dkhan22]

Originally Posted by matt@ZNMPerformance

I'd be more than willing to take a look at it.... I just need to be informed 110% of what was done and why it was done. It seems like a ton was replaced just to get to the bottom of the problem, which makes it difficult for me to get to the root cause of the problem.

The mechanic said a couple of the codes are new, but the main ones are the throttle and camshaft.

The car is a top mount single turbo. So things were changed around that needed to make this possible. Recently MSD80 to MSD81 was performed. that's pretty much it.

As of right now, the mechanic is diagnosing the HPFP since it was giving good readings a few days ago and said its low today.