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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > Help with some codes (strange ones)



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      04-06-2020, 09:29 PM   #1
MartinWake
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Help with some codes (strange ones)

Hello everyone, before you look at the picture with the codes I would like to say this car has been through hell, What I mean by that it is on its 3rd mechanic finally a one that does not charge an arm and a leg.

anyways these codes are weird because this car had an engine swap a sketchy one but its done now these codes my mechanic say could be the wiring harness since my car is a manual and the engine is from a auto, I am not sure if the engine swap guy swapped the harness.

The car runs and drives, I drove it today, its in limp mode with engine malfunction but I have not driven this car in more then a year so lets say I am happy regardless

when the last mechanic had it I bought all new intakes tubes stuff like that just so you guys are aware

Also when the engine swap guy had it, it had JB4 on it I told him if he needed help removing it he said "I ain't even worried about that junior" so maybe installing the jb4 again will help it, idk maybe not just shooting ideas

also the charging pressure code is kinda dumb since the car cuts boost then it tell you there is low boost

Here is the picture if you guys can give me some advice or help me out I would really appreciate it!

if you're wondering what the last mechanics did they changed the rear main seal since it was leaking and fixed the clutch plate.
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Last edited by MartinWake; 04-07-2020 at 02:07 AM..
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      04-07-2020, 02:24 AM   #2
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One more thing it does make this noise, which leads me to think its not the wiring harness but at the same time the code says signal implausible

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      04-07-2020, 06:49 AM   #3
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With your faults stored you got 4 different issues

Valvetronic, Oil pressure, Boost pressure along with Timing/vanos

and being your N55, Could be something as easy as a software update for the DME, or multiple items are failing together which I doubt is the case. Are the faults currently present. If not, clear them turn of the JB4 and just drive the car and see what/if any faults return.
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      04-07-2020, 02:01 PM   #4
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Originally Posted by Bavarian Tech View Post
With your faults stored you got 4 different issues

Valvetronic, Oil pressure, Boost pressure along with Timing/vanos

and being your N55, Could be something as easy as a software update for the DME, or multiple items are failing together which I doubt is the case. Are the faults currently present. If not, clear them turn of the JB4 and just drive the car and see what/if any faults return.
I should say this engine was taken out of a car that crashed but the engine was not tounched anyways the jb4 is off the car since for some reason when the swap was done the jb4 harness I have does not fit anymore, and you think it can be a dme update problem? it does make the sound from the video I put
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      04-08-2020, 08:34 AM   #5
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Quote:
Originally Posted by MartinWake View Post
I should say this engine was taken out of a car that crashed but the engine was not tounched anyways the jb4 is off the car since for some reason when the swap was done the jb4 harness I have does not fit anymore, and you think it can be a dme update problem? it does make the sound from the video I put
It could be a number of items. I would still start by just clearing everything and turning off the jb4 and just drive around to establish a baseline of which faults return.
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      04-08-2020, 03:45 PM   #6
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Originally Posted by Bavarian Tech View Post
It could be a number of items. I would still start by just clearing everything and turning off the jb4 and just drive around to establish a baseline of which faults return.
I cleared everything they came back fast and I said in the last post I dont have the JB4 installed anymore
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      04-11-2020, 07:07 AM   #7
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If it is making that exact noise when you unlock the car then you have a bad valvetonics motor. Need to replace it which involves removing the VCG and potentially some other things.
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      04-29-2020, 08:08 PM   #8
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If it is making that exact noise when you unlock the car then you have a bad valvetonics motor. Need to replace it which involves removing the VCG and potentially some other things.
yes it is making that sound I just dont think its the wiring harness like they say it would not make sense
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