[feuer]

Originally Posted by AMG_KLR

I would love to hear a joke!

On the verge of divorce couple go to see a therapist. Supposedly sex has been a problem. Husband is completely oblivious saying that he knows what he is doing, that they have been together for 10 years and he has done it hundred of thousands times at least. Wife rolls her eyes saying the mailman does it better.

So....how many times your tech has replaced injectors might be completely irrelevant as we don't know if said injectors have been installed properly. With the ECU burning out I tend to think they weren't.

Additionally, not that I'm the God of N54 and that you must comply, but why would you keep trying to flash the ECU and get it to run? Just tow the car to a competent mailman.

[langsbr]

Did you ever get the car to crank? I've run into the crank no start once and just reflashed it and it was fine.

One thing that no one has mentioned, or I missed it - there are 4 (FOUR) O2 sensors.

pre-cat, and post-cat.

The pre-cat (in the downpipes close to turbos) are the uber critical ones, and those are the ones that should be replaced. They are lazy, old, or suspect. Your car is running lean, even with the short term trims maxing out. Either there is a fueling restriction, and your O2s are reading correct, OR, the O2s are bad, and it's dumping more fuel than it needs, but not reading it correctly.

The post-cat O2 sensors are, while still needed, not QUITE as critical. In most cars they are only for determining the catalytic converter efficiency. Those are at the end of the downpipe near the exhaust. I would replace them last.

I would also only use the dealer as a last resort. If you think you've spent a lot so far, you don't want to see the dealer's prices. This will be the first $30K 335i with only FBO.

[musa]

I sympathize with you as I went through a Limpmode nightmare with my car in 2016. It was a nightmare like yours with the main difference being that I was doing all the work myself. What finally fixed my issue was replacing the DME at the dealer but at wholesale price and with only $400 dollars labor that included coding the DME to the car and replacing the DME fan. The diagnosis was mine. Bought the parts at their online store. You must email Jesse (parts advisor) for a quote of the parts you need to receive those discounted prices in parts and labor to install them. No calls accepted otherwise you pay counter price. Here's the contact. If Jesse is not in call the number below and ask who else to email for a quote on internet sales.
Jesse Solorio
657-231-5064
jesse.solorio@crevierbmw.com

Crevier BMW
1500 Auto Mall Drive
Santa Ana, CA 92705
714-835-3171

[zl0ca]

I feel for you too brother. I bought the car being told the maintenace is up to date and in good shape. 3 months later I was putting in a new clutch, flywheel, new turbos, inlets while at it(worst mod ever...keeps popping off), lpfp, replaced all the vacuum lines and this thing is back to having no boost and a ton of hissing and other random noise. Short story.. some are lucky with no work others spend just time fixing them.

[335e92tx]

Originally Posted by musa

I sympathize with you as I went through a Limpmode nightmare with my car in 2016. It was a nightmare like yours with the main difference being that I was doing all the work myself. What finally fixed my issue was replacing the DME at the dealer but at wholesale price and with only $400 dollars labor that included coding the DME to the car and replacing the DME fan. The diagnosis was mine. Bought the parts at their online store. You must email Jesse (parts advisor) for a quote of the parts you need to receive those discounted prices in parts and labor to install them. No calls accepted otherwise you pay counter price. Here's the contact. If Jesse is not in call the number below and ask who else to email for a quote on internet sales.
Jesse Solorio
657-231-5064
jesse.solorio@crevierbmw.com

Crevier BMW
1500 Auto Mall Drive
Santa Ana, CA 92705
714-835-3171

So was this a random half-engine?
OR no start?

What were the codes?
Build date of E-series ?
Did the DME have cooling OEM?

[335e92tx]

Originally Posted by langsbr

Did you ever get the car to crank? I've run into the crank no start once and just reflashed it and it was fine.

One thing that no one has mentioned, or I missed it - there are 4 (FOUR) O2 sensors.

pre-cat, and post-cat.

The pre-cat (in the downpipes close to turbos) are the uber critical ones, and those are the ones that should be replaced. They are lazy, old, or suspect. Your car is running lean, even with the short term trims maxing out. Either there is a fueling restriction, and your O2s are reading correct, OR, the O2s are bad, and it's dumping more fuel than it needs, but not reading it correctly.

The post-cat O2 sensors are, while still needed, not QUITE as critical. In most cars they are only for determining the catalytic converter efficiency. Those are at the end of the downpipe near the exhaust. I would replace them last.

I would also only use the dealer as a last resort. If you think you've spent a lot so far, you don't want to see the dealer's prices. This will be the first $30K 335i with only FBO.

Yes, and I would add they can fail randomly. Even after boltons that the O2 sens wont get touched. These things are finicky as they age.

[musa]

Originally Posted by 335e92tx

So was this a random half-engine?
OR no start?

What were the codes?
Build date of E-series ?
Did the DME have cooling OEM?

Yes, half-engine with violent bucking like a mad horse -2007 E92.
http://www.e90post.com/forums/showthread.php?t=1312603
http://www.e90post.com/forums/showthread.php?t=1310833

I replaced nearly everything that goes wrong with these cars- vanos solenoids, nearly all sensors in the engine, rebuilt turbos, new valve-covers, spark plugs, all O2 sensors, both fuel pumps and filter, walnut blasting, cooling system overhaul and finally ... what ended up fixing my issue ... the DME! You'll finally get your break - hung in there. I later also overhauled the suspension. The car drives like new now and a real champ. All labor was mine. You simply have to be a DIY to keep these cars long term otherwise can be very expensive. Parts costs are reasonable.

You said you're a tech person? I am too and also discovered I can be mechanically inclined after, like you, getting pissed of with pro mechanics...start with simple stuff and the internet is your buddy.

Here's an online TIS BMW manual.
https://www.newtis.info/tisv2/a/en/

[335e92tx]

Originally Posted by musa

Yes, half-engine with violent bucking like a mad horse -2007 E92.
http://www.e90post.com/forums/showthread.php?t=1312603
http://www.e90post.com/forums/showthread.php?t=1310833

I replaced nearly everything that goes wrong with these cars- vanos solenoids, nearly all sensors in the engine, rebuilt turbos, new valve-covers, spark plugs, all O2 sensors, both fuel pumps and filter, walnut blasting, cooling system overhaul and finally ... what ended up fixing my issue ... the DME! You'll finally get your break - hung in there. I later also overhauled the suspension. The car drives like new now and a real champ. All labor was mine. You simply have to be a DIY to keep these cars long term otherwise can be very expensive. Parts costs are reasonable.

You said you're a tech person? I am too and also discovered I can be mechanically inclined after, like you, getting pissed of with pro mechanics...start with simple stuff and the internet is your buddy.

Here's an online TIS BMW manual.
https://www.newtis.info/tisv2/a/en/

Ah, no - I didn't .
But ok bud.

[muncie21]

Originally Posted by feuer

Because ECU is showing 30ba/bb. That is internal fault and ECU can't drive the injectors. I told you this few days ago.

Ruh-roh, that's no bueno