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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > Went drag racing and car broke again.



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      07-14-2013, 08:45 AM   #1
joe_planet
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Went drag racing and car broke again.

So after the last fix by my friendly BMW dealer by replacing the dpf my car has been trouble free two weeks and I decide to take it drag racing.
I went to an 1/8 mile. My best was an 8.86 but most of my runs were in the 9.0-9.2 range. I beat every car I raced all night. On the last run right in the middle of the race I get a engine malfunction and reduced power message and lose... I was soooo pissed off. No ses light but I got home and turbocharger under boost condition is pending in the computer. This is the same code they were fixing the car for before they replaced the dpf. I was so pissed off I even went car shopping, but all the cars I drive are pos
Only cars I actually like are BMW Audi or Infiniti... But BMW is better. So I didn't trade and cars going back to dealer. I don't want to do a dpf delete just yet because it would totally void my warranty and don't really know what to do at this point... Any input fellas?
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      07-14-2013, 08:49 AM   #2
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how many runs before this happened?
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      07-14-2013, 09:13 AM   #3
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Could be your turbo actuators. Do you find a long lag before the second turbo kicks in at 3K rpm?
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      07-14-2013, 09:32 AM   #4
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Quote:
Originally Posted by Timujin View Post
how many runs before this happened?
12 ish

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Originally Posted by GreekboyD View Post
Could be your turbo actuators. Do you find a long lag before the second turbo kicks in at 3K rpm?
I didn't notice any lag.. My times were pretty consistent.
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      07-14-2013, 10:11 AM   #5
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I meant lag after you saw the fault message.
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      07-14-2013, 12:23 PM   #6
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Well it cut the power. But i wouldnt say i felt any lag.
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      07-14-2013, 02:33 PM   #7
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Were you monitoring EGT's and coolant temps? How about boost levels? Was the car trying to do a DPF regen during the pulls? What kind of mods are you running? How long between pulls and was the car cooled down between? What were ambient temps?

It's possible the engine/DPF were getting really, really hot if you weren't monitoring things. Also possible the air charge pipe sealing gaskets were not able to hold pressure due to excessive heat under the hood. If you get a tool (Bavarian Technic or Android Torque) that will show you those operating conditions you could gain a lot of insight into what's going on when you are really pushing your vehicle in this type of extreme utilization.
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      07-14-2013, 05:07 PM   #8
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Its under warranty. utilize it. dont get rid of her just yet.
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      07-15-2013, 07:05 AM   #9
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wish you luck amigo on this
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      07-15-2013, 10:15 AM   #10
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Quote:
Originally Posted by TDIwyse View Post
Were you monitoring EGT's and coolant temps? How about boost levels? Was the car trying to do a DPF regen during the pulls? What kind of mods are you running? How long between pulls and was the car cooled down between? What were ambient temps?

It's possible the engine/DPF were getting really, really hot if you weren't monitoring things. Also possible the air charge pipe sealing gaskets were not able to hold pressure due to excessive heat under the hood. If you get a tool (Bavarian Technic or Android Torque) that will show you those operating conditions you could gain a lot of insight into what's going on when you are really pushing your vehicle in this type of extreme utilization.
I will try and answer your questions as accurately as I can.
The ambient temps started at 100F and dropped to about 93F as time went on.
I was not monitoring any temps and neither was I monitoring boost levels. I dont know if it was trying to do a regen, but I'm suspecting it was. I have a reflash by ecotune. The code that I was able to read with my hand scanner was a turbo underboost condition. It is possible that the dpf got too hot during the regen at WOT and it cut the power to keep it from melting down.
I really wish these bmw cars would indicate when a regeneration cycle is performed just like my ford diesel truck. I think I'll pick up one of these bavarian technic tools and start monitoring things. I will be dropping the car off at the dealer tomorrow and see what else they can find.
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      07-15-2013, 12:38 PM   #11
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Quote:
Originally Posted by joe_planet View Post
I will try and answer your questions as accurately as I can.
The ambient temps started at 100F and dropped to about 93F as time went on.
I was not monitoring any temps and neither was I monitoring boost levels. I dont know if it was trying to do a regen, but I'm suspecting it was. I have a reflash by ecotune. The code that I was able to read with my hand scanner was a turbo underboost condition. It is possible that the dpf got too hot during the regen at WOT and it cut the power to keep it from melting down.
I really wish these bmw cars would indicate when a regeneration cycle is performed just like my ford diesel truck. I think I'll pick up one of these bavarian technic tools and start monitoring things. I will be dropping the car off at the dealer tomorrow and see what else they can find.
That's hot.

You might want to also consider the Android Torque app if you have that type of phone or a tablet with android OS. With a bluetooth OBD dongle it's super easy to use. Much easier than the Bavarian Technic (although it can do and see way more than Torque can).

I'm able to see the EGT's and boost, and its obvious from the EGT and EGR/Throttle behavior when the car is doing a DPF regen.

http://www.e90post.com/forums/showpo...4&postcount=23
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      07-15-2013, 12:48 PM   #12
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If its under warranty, return your car back to stock and get it fixed. Not sure how they'll react if the cars modded out and you told them you tracked it. Would be worth making it stock and using it warranty.
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      07-15-2013, 01:05 PM   #13
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Quote:
Originally Posted by TeinBMW View Post
If its under warranty, return your car back to stock and get it fixed. Not sure how they'll react if the cars modded out and you told them you tracked it. Would be worth making it stock and using it warranty.
They already replaced the dpf and other stuff on it while flashed so its not an issue.
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      07-15-2013, 01:07 PM   #14
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Quote:
Originally Posted by joe_planet
Quote:
Originally Posted by TeinBMW View Post
If its under warranty, return your car back to stock and get it fixed. Not sure how they'll react if the cars modded out and you told them you tracked it. Would be worth making it stock and using it warranty.
They already replaced the dpf and other stuff on it while flashed so its not an issue.
Oh shit. You've got a good dealer man. Mine will void my warranty in a heart beat for any mod.
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      07-15-2013, 01:11 PM   #15
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Quote:
Originally Posted by TDIwyse View Post
That's hot.

You might want to also consider the Android Torque app if you have that type of phone or a tablet with android OS. With a bluetooth OBD dongle it's super easy to use. Much easier than the Bavarian Technic (although it can do and see way more than Torque can).

I'm able to see the EGT's and boost, and its obvious from the EGT and EGR/Throttle behavior when the car is doing a DPF regen.

http://www.e90post.com/forums/showpo...4&postcount=23
Thanks for giving me this info. I've ordered the bluetooth adapter from amazon just now. We'll see how this works out. I would like to get the bavarian technic, but the regular version is only good for 3 vehicles.. and the professional is very expensive. I'm holding off on that purchase for now.
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      07-15-2013, 04:44 PM   #16
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Nice. Let us know how it works for you.
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      07-16-2013, 08:02 AM   #17
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Looks Nice, but Maybe You Can't Have It...

Quote:
Originally Posted by TDIwyse View Post
Much easier than the Bavarian Technic (although it can do and see way more than Torque can).
I see on the Bavarian Technic web site they list it for 1996-09 3 series and NO U.S. distributors!

Wonder when they will update it for later years and sell it in the U.S.?
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      07-16-2013, 10:04 AM   #18
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Originally Posted by TDIwyse View Post
I'm able to see the EGT's and boost, and its obvious from the EGT and EGR/Throttle behavior when the car is doing a DPF regen.
http://www.e90post.com/forums/showpo...4&postcount=23
Am thinking about getting the OBD Dongle and seeing whether Torque makes the app for the iPhone 4S.

So, from looking at the Torque shots in the link, during Regen the EGT1 temp goes way up and the EGR falls to zero percent, and after Regen, the EGT1 temp falls back to "normal" and the EGR percent climbs up to above 90 percent. Correct?

Now I need to decide whether having the Torque app running all the time and thus occupying the OBD port, or having the JBD CAN tool occupying the OBD port. I wonder if the Torque app can do everything I need to do, not for setup, but for ongoing daily use, that the CAN tool does for me, meaning seeing all the codes that might be thrown by the JBD, and clearing them as needed?
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      07-16-2013, 01:15 PM   #19
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Quote:
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I see on the Bavarian Technic web site they list it for 1996-09 3 series and NO U.S. distributors!

Wonder when they will update it for later years and sell it in the U.S.?
I've been using it for several years. Came with the JBD I bought a long time ago. Lots of data collected from it on this thread: http://www.bimmerfest.com/forums/sho...d.php?t=598240

It's incredibly useful. Especially for doing fuel filter changes as its the only way I was able to get the low pressure pump to turn on so I could flush the filter and remove air from the fuel system before starting the car (very important for HPFP longevity and health).
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      07-16-2013, 01:19 PM   #20
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Quote:
Originally Posted by 335dFan View Post
Am thinking about getting the OBD Dongle and seeing whether Torque makes the app for the iPhone 4S.

So, from looking at the Torque shots in the link, during Regen the EGT1 temp goes way up and the EGR falls to zero percent, and after Regen, the EGT1 temp falls back to "normal" and the EGR percent climbs up to above 90 percent. Correct?

Now I need to decide whether having the Torque app running all the time and thus occupying the OBD port, or having the JBD CAN tool occupying the OBD port. I wonder if the Torque app can do everything I need to do, not for setup, but for ongoing daily use, that the CAN tool does for me, meaning seeing all the codes that might be thrown by the JBD, and clearing them as needed?
In normal operation the EGR/throttle tend to bounce around a lot. But on most steady state driving at low engine load the EGR is heavily utilized. But yes, during DPF regen the EGR goes to 0 (depending on engine load it'll fluctuate a little above 0) and EGT's go through the roof.

One thing to note, I'm unable to see the shadow codes with torque, but can with the BT.

Really, you should get both :-)
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      07-16-2013, 01:52 PM   #21
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Quote:
Originally Posted by TDIwyse View Post
In normal operation the EGR/throttle tend to bounce around a lot. But on most steady state driving at low engine load the EGR is heavily utilized. But yes, during DPF regen the EGR goes to 0 (depending on engine load it'll fluctuate a little above 0) and EGT's go through the roof.

One thing to note, I'm unable to see the shadow codes with torque, but can with the BT.

Really, you should get both :-)
It seems from my initial and preliminary investigation that Torque comes only for Android devices and not for the big bad IOS devices (iPhone).
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      07-18-2013, 12:40 PM   #22
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so a bit of an update. sa called yesterday. he said the mechanic will be replacing the electronic vacuum control unit since the turbos are actuated by vacuum, or the wastegates.. or something lol. I sure would love to see a diagram of all this piping in there. Hopefully will get car back tomorrow and see if I can hook up torque to it and see where we are.
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