hey guys getting kind of desperate with my engine swap, i ran it for 2 months now after a lot of issues that i fixed it still has a shake in it.
the engine is a m52, i replace the block with the m50 one. in europe the m52 block is made of nikasil, it boiled and the threads just came out with the bolts.
the engine is a 2.8 liter with m52 2.0 head m50 manifold m52 harness 1 vanos. the diagnostic tool told me that the only error is the tank valve which i think is the pressure release on the gas tank on the e39. i don't have a huge vacuum leak like that. i changed the ecu with a stock one, same problem. changed the intake because my intake was chopped up to clear the brake booster. the engine has 17 bar compression 246 psi. on all cylinders what could be the problem? there is no ccv anymore, i connected a filter on the valve cover hole, the idle valve is the only thing connected to the manifold i did not use a swap manifold kit. and another problem is if i connect the icv when i let off the throttle pedal it keeps it accelerated a bit then comes down slower i ride it with the icv disconnected, tried changing it with the m20 icv still the same, don't think vacuum leak could be the culprit here because i checked all the lines with starter spray.
the engine is a m52, i replace the block with the m50 one. in europe the m52 block is made of nikasil, it boiled and the threads just came out with the bolts.
the engine is a 2.8 liter with m52 2.0 head m50 manifold m52 harness 1 vanos. the diagnostic tool told me that the only error is the tank valve which i think is the pressure release on the gas tank on the e39. i don't have a huge vacuum leak like that. i changed the ecu with a stock one, same problem. changed the intake because my intake was chopped up to clear the brake booster. the engine has 17 bar compression 246 psi. on all cylinders what could be the problem? there is no ccv anymore, i connected a filter on the valve cover hole, the idle valve is the only thing connected to the manifold i did not use a swap manifold kit. and another problem is if i connect the icv when i let off the throttle pedal it keeps it accelerated a bit then comes down slower i ride it with the icv disconnected, tried changing it with the m20 icv still the same, don't think vacuum leak could be the culprit here because i checked all the lines with starter spray.
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