HELP: Smoke, Noise and Rough idle after engine swap

E91 Hoarder · 09-02-2022, 11:24 PM

Hi folks, looking for your help, hopefully you can steer me in the righ direction as I am in dead-end how to troubleshoot it.

Context: I did an engine swap on my 2006 325i. Instead of rod-knocked N52B25, I installed N52B30 from 2006 330i. Everything went fairly smoothly, in addition I did a bunch of service to the engine (new water pump, thermo, valve cover gasket, oil pan gasket, new drive belt and pulley, new sparks, coolant, power steering, oil, tranny oil etc).

When I first started, at first it cranked a long time, then evetually started, but with some odd noises and after a few seconds some smoke from the exaust maniforl area.

Here is the video:

Also here are the codes pulled after the start:

Engine module for N52
Current Fault Codes

2A82 inlet-Vanos variable cam control test
Error will cause a warning light
Error is not currently present
Test conditions have been completed

2A98 crank shaft - inlet camshaft, correlation
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Short circuit or signal interruption

2E69 knock sensor signal 2
Error will cause a warning light
Error is currently present
Test conditions have been completed
Short circuit or signal interruption

2AE4 motor venting/heating relay, input signal
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Timeout

2E68 knock sensor signal 1
Error will cause a warning light
Error is currently present
Test conditions have been completed
Short circuit or signal interruption

2DEC power management, battery control
Error will not cause a warning light
Error is currently present
Test conditions have been completed
Signal or value below threshold

2E1B ignition, cylinder 4
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Signal or value below threshold

2E19 ignition, cylinder 2
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Signal or value below threshold

2E1D ignition, cylinder 6
Error will not cause a warning light
Error is not currently present
Test conditions have been completed
Signal or value below threshold

29D0 misfirings, cylinder 4
Error will cause a warning light
Error is not currently present
Test conditions have been completed
Signal or value below threshold

Electronic fuel pump (EKP)

Externer Fehler: CAN-Bus-Off
Error will cause a warning light
Error is not currently present
Test conditions have been completed

Any help is appreciated!

TheTallJS · 09-05-2022, 11:25 PM

did you code it to say it has n52b30? different intake manifold.

E91 Hoarder · 09-06-2022, 10:55 AM

Quote:

Originally Posted by TheTallJS

did you code it to say it has n52b30? different intake manifold.

I haven’t, but work in progress. Figuring out the coding procedure at the moment.

Any clues on the noise and reason for smoke?

09-02-2022, 11:24 PM	#1
E91 Hoarder Captain 123 Rep 852 Posts Drives: E91 AWD, E91 RWD, E90, X535i Join Date: Oct 2011 Location: On the Road iTrader: (8)	HELP: Smoke, Noise and Rough idle after engine swap Hi folks, looking for your help, hopefully you can steer me in the righ direction as I am in dead-end how to troubleshoot it. Context: I did an engine swap on my 2006 325i. Instead of rod-knocked N52B25, I installed N52B30 from 2006 330i. Everything went fairly smoothly, in addition I did a bunch of service to the engine (new water pump, thermo, valve cover gasket, oil pan gasket, new drive belt and pulley, new sparks, coolant, power steering, oil, tranny oil etc). When I first started, at first it cranked a long time, then evetually started, but with some odd noises and after a few seconds some smoke from the exaust maniforl area. Here is the video: Also here are the codes pulled after the start: Engine module for N52 Current Fault Codes 2A82 inlet-Vanos variable cam control test Error will cause a warning light Error is not currently present Test conditions have been completed 2A98 crank shaft - inlet camshaft, correlation Error will cause a warning light Error is not currently present Test conditions have been completed Short circuit or signal interruption 2E69 knock sensor signal 2 Error will cause a warning light Error is currently present Test conditions have been completed Short circuit or signal interruption 2AE4 motor venting/heating relay, input signal Error will not cause a warning light Error is not currently present Test conditions have been completed Timeout 2E68 knock sensor signal 1 Error will cause a warning light Error is currently present Test conditions have been completed Short circuit or signal interruption 2DEC power management, battery control Error will not cause a warning light Error is currently present Test conditions have been completed Signal or value below threshold 2E1B ignition, cylinder 4 Error will not cause a warning light Error is not currently present Test conditions have been completed Signal or value below threshold 2E19 ignition, cylinder 2 Error will not cause a warning light Error is not currently present Test conditions have been completed Signal or value below threshold 2E1D ignition, cylinder 6 Error will not cause a warning light Error is not currently present Test conditions have been completed Signal or value below threshold 29D0 misfirings, cylinder 4 Error will cause a warning light Error is not currently present Test conditions have been completed Signal or value below threshold Electronic fuel pump (EKP) Externer Fehler: CAN-Bus-Off Error will cause a warning light Error is not currently present Test conditions have been completed Any help is appreciated! __________________ "Let me see what I can do... sir"
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09-05-2022, 11:25 PM	#2
TheTallJS Member 30 Rep 115 Posts Drives: Metallic Black 2006 325i Join Date: Sep 2009 Location: San Francisco iTrader: (0) Garage List 2006 BMW 325i [0.00]	did you code it to say it has n52b30? different intake manifold.
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