[AmuroRay]

Originally Posted by rVito

Will try disconnecting it. Car is fitted with bms sports intake, btw

Anything?

[rVito]

Originally Posted by AmuroRay

Anything?

Didnt help. Im getting all the electronic module software updated soon, up the zeitkriterium. Will post an update tomorrow probably

[AmuroRay]

Originally Posted by rVito

Didnt help. Im getting all the electronic module software updated soon, up the zeitkriterium. Will post an update tomorrow probably

Awesome man, keep us posted.

[rVito]

seems like it didnt help. My car is being taken for further diagnostics to a coding expert, did not sound optimistic though.

[AmuroRay]

Originally Posted by rVito

seems like it didnt help. My car is being taken for further diagnostics to a coding expert, did not sound optimistic though.

So you swapped the full harness, ECU and all the sensors from the donor car over?

[n55david]

Originally Posted by AmuroRay

So you swapped the full harness, ECU and all the sensors from the donor car over?

this..

[rVito]

Originally Posted by AmuroRay

So you swapped the full harness, ECU and all the sensors from the donor car over?

yes

[thejeremyman9]

Is there any specific relationship between cyl 2 and 5? What codes specifically do you get? Multiple misfires then shutoff cyl?

[SuperLomi]

Cylinder 2 and 5 fire together.

[AmuroRay]

Originally Posted by SuperLomi

Cylinder 2 and 5 fire together.

Could it be damage to the wiring harness itself then?

[SuperLomi]

Originally Posted by AmuroRay

Could it be damage to the wiring harness itself then?

The OP stated it "runs and drives fine" after clearing codes. I'm assuming this means it wont throw any new codes while driving around and seems to be operating correctly.

They probably need to confirm that through other diagnostics (are cyl 2/5 firing correctly after clearing codes?), but assuming that's true it shouldn't be something physical that directly affects the operation at all times.

So to me this feels like a programming issue, specifically with the startup sequence. Or something with a sensor or input not reading correctly, but is compensated after startup.


I wonder if the Auto start/stop or eco mode cause any problems?

[rVito]

The car runs. Sadly, I cant provide any specifics yet, programmer is being annoying and refuses to explain anything. Generally, it required a custom tune/map, because car wasnt accepting the new dme.

[rVito]

Update. It was stock software+cda4 and cd8f error removal

[rlesko]

Originally Posted by rVito

sorry for bumping an old thread, but Im going through a PWG to EWG conversion and ran into an issue. My car is 2012 f30 335i rwd, and Ive had a spun rod bearing. I swapped engine, injectors, full engine harness, ewg turbo and dme from a 2015 xdrive 335i. VIN is matched to the car. Now the car starts, runs fine for a moment and then 2 and 5 cylinders stop working (error: 2 and 5 cylinder misfire). Now, if I clear this error, engine starts running perfectly again and car drives as it should, but I would need to keep clearing this error anytime I start the car. Coils, plugs, injectors have been checked, sensors as well. Engine compression is great.

This is really cool knowing that it can be done. And perhaps can be done at a much more reasonable price at this point depending on how much you can do yourself.

Originally Posted by rVito

The car runs. Sadly, I cant provide any specifics yet, programmer is being annoying and refuses to explain anything. Generally, it required a custom tune/map, because car wasnt accepting the new dme.

I can't be too upset since some people make their livings off of this knowledge, but after being involved in a lot of open source communities, it is quite jarring how difficult it can be to get information in the car community at times.

Btw, what do you mean "error removal"?

[rVito]

Update. For misfires - You need EU6 injectors(pwg comes with eu5), because along with ewg turbo, bmw changed the EU standart.

And those two removed errors had nothing to do with conversion. One was for damaged IBS cable, another probably related to xdrive harness somehow, didnt care too much to fix it.

One important note though. Get the correct DME. This needs mevd172g, I believe.

[AmuroRay]

Serious question - why aren't more PWG owners buying used EWG turbos and swapping them over?

[rVito]

not worth it, unless youre swapping the entire engine anyway. Look how much hassle there is for negligible gain. Youre better off getting a big turbo upgrade for pwg

[AmuroRay]

Originally Posted by rVito

not worth it, unless youre swapping the entire engine anyway. Look how much hassle there is for negligible gain. Youre better off getting a big turbo upgrade for pwg

The EWG turbo itself, not the whole wiring. Isn't the it just modifying a bracket to hold the PWG wastegate, and a EWG Downpipe.

And 70WHP is a lot.

[rVito]

ewg comes with additional wiring connectors, so you need the wiring and the dme to run it. Not sure what do you mean, but I dont think you can just mix and match parts from both turbos, its a whole unit, with exhaust manifold, and you need a wider ewg downpipe too

[AmuroRay]

Originally Posted by rVito

ewg comes with additional wiring connectors, so you need the wiring and the dme to run it. Not sure what do you mean, but I dont think you can just mix and match parts from both turbos, its a whole unit, with exhaust manifold, and you need a wider ewg downpipe too

You can just swap over the EWG turbo on a PWG car.

https://f30.bimmerpost.com/forums/sh....php?t=1911501

[rVito]

different engine, interesting nonetheless.. Perhaps this applies to n55 too, I didnt really compare them side by side, cant say much

[rVito]

but still, you need your car to know it has ewg, that requires new dme and wiring...otherwise MHD, bm3 etc. wont recognise it and you wont be able to use an appropriate tune. At least with my build, I can use mhd no problem, running stage2 + for over a year