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Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 09-09-2014, 04:29 AM   #1
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Join Date: Aug 2014
Posts: 37
E46 330d engine swap HELP! Engine has no throttle and dies.

Hi all.
Car is a 2000 e46 330d auto with M57 180hp
1)Original engine all ran ok until head gasket failure.
2)Decided to swap engine.
3)Engine doner vehicle was a 2000 E39 auto with M57 180hp.
4)i listened to doner engine running in E39 perfect before swap.

5) parts transferred with doner engine were:
B)crank sensor
C)cam sensor
D)MAF sensor
E)Oil level Sensor
F)HIgh Pressure Fuel Pump with electrical sensor
G)Fuel Rail with rail pressure sensor.

6) Parts retained from original E46 are:
A) Engine wiring harness
B) Water temp sensor for head
C) Alternator
D) turbo assembly with pressure valve actuator. Turbo rebuilt with new core and VGT vanes all cleaned, and vacuum actuator all checked good.
E) Oil filter assembly
F) Inlet manifold with MAP sensor and swirlflap actuator vacuum solenoid.
G) air con compressor
H) Complete radiator assy with temp sensors and attached electrical bits.
I) Starter motor
J) Everything that was attached to the engine bay rather than the engine.


1) with everything connected, engine starts but very lumpy idle then stops, with no throttle response at all.

2)disconnect vacuum line from EGR Valve, engine starts perfect, runs evenly on six cylinders at 800rpm for approx three seconds then revs drop to about 400rpm, still evenly, but absolutely no response from throttle pedal. Engine will stall eventually from revs too low.

3) oil pressure lights all good, and brand new battery fitted to car.

1) cam sensor swap
2)MAF sensor swap
3)all vacuum lines checked and connections validated correct.

I have not yet tried to read any ECU fault codes.
All the electrical parts from both cars were all working fine before the swap,
Why oh why won't it run!!! The mechanical parts should all be good and compatible.

HELP!!!!!!!!!!!!!!!!!!!! Pleeeese!

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