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New to the diesel work HELP!
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09-12-2018, 05:05 PM | #1 |
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New to the diesel work HELP!
I picked up this 2011 335D at auction and it drove great yesterday for test drives. Good power smooth delivery, although it does have a service engine light.
Well today I go look at the car before auction start and the car has a half engine light and is cutting power tremendously. I got it cheap, drove it home 300 miles and figured I'd poke around to see if someone could have unplugged a sensor or something. I'll be honest I'm not very familiar with Diesel engines, but I have been working on European cars for 6+ years and have done just about every repair under the sun. This car has clearly been modified and I want to find the power that was there yesterday! Any input would be great. Here's a pic of the engine bay, and codes I'm getting. These two codes will not clear. I believe the injection cylinder 1 is the cause of half engine light. |
09-12-2018, 06:30 PM | #4 |
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Glad to see it was a simple fix. I had a similar issue the other week where the connector on one of the wastegate solenoids worked itself off.
Looking at the picture of the engine, it looks like the previous owner removed the EGR cooler and replaced the EGR valve with a race pipe. Both of those modifications point to the car being tuned. Not sure if there is a good way to tell which tune it has though. If youre really curious, you might be able to email some of the tuners with your info and they may or may not be able to confirm if they did a tune on your particular VIN. |
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09-12-2018, 06:47 PM | #5 |
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09-12-2018, 06:53 PM | #6 | |
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I will have to do some digging to see what I can figure out about the tune. I haven't driven another 335d to compare to, but the torque on this thing will put you in your seat. It also has an exhaust, and sounds like a truck at idle, you can hear the turbos whistling away. Puts a smile on my face just starting it up 😁 |
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09-12-2018, 06:57 PM | #7 | |
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I suppose you could also go to a dyno and see what kind of power the car is making and compare that to what some of the tuners out there are advertising. I plan on doing that anyway myself to see just how accurate those claims are. That being said, I do enjoy hearing the turbos whistle Do you suspect that someone at the auction loosened the plug or that it came loose on your drive back home? |
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09-12-2018, 07:07 PM | #8 | ||
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It would be a pleasant surprise if these have already been removed! |
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09-12-2018, 07:16 PM | #9 | |
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09-12-2018, 07:53 PM | #10 | ||
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09-12-2018, 08:07 PM | #11 | ||
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09-12-2018, 08:54 PM | #12 | |
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09-12-2018, 08:57 PM | #13 | ||
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09-12-2018, 09:26 PM | #14 |
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If it's tuned Def has been disabled. Eventually need to drain it and remove tanks.
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09-12-2018, 09:29 PM | #15 | |
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Id wager to say that you probably wont have to worry about this though. Seems like the previous owner knew the shortcomings of the car and removed the emissions stuff. If thats the case, then you wont have to keep filling the tank with DEF fluid. The circular door you see on the rear bumper is for the fill neck of the SCR. There are actually two filler necks behind it, one for the passive tank and one for the active tank. Im thinking about installing a methanol kit on my car and wondering if its possible to repurpose that access panel for a methanol reservoir since I no longer have the SCR back there. |
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09-12-2018, 09:31 PM | #16 |
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09-12-2018, 10:55 PM | #17 |
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If its BPC tunes some of their tunes require tanks to be plugged in. Unplug and you get a silent countdown from 999mi to zero. Then no start.
For the heater code, check little plug in front of the airbox. It clips to the front. Or the actual heater connection by the filler neck. I would post a pic but cant from the phone. May be join our Diesel FB Group called NBDOG. Easier to share pics but impossible to search anything. |
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09-13-2018, 06:36 AM | #18 |
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I believe that this is the connection Yozh is talking about by the airbox:
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09-13-2018, 12:13 PM | #19 |
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09-13-2018, 12:19 PM | #20 |
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09-13-2018, 09:06 PM | #21 |
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09-13-2018, 09:46 PM | #22 | ||
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I peaked under my car today and noticed the central looking muffler (SCR or DPF?) appears to have been opened up and welded back together, to gut the internals? |
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