(Up to a point - whereby two outlets become more beneficial than one)Ģ. Having one outlet shut increases the velocity of the gasses escaping the system at lower rpms, and light throttle ( basic street driving) more flow more go. I attribute this to two possible factorsġ. I am not a boy racer as I was years ago, and would like u unnecessary noise pollution regulated to a minimum as designed.Īs a side note, I also notice that when forced closed the car seems peppier off the line. Having both passages open at idle is quite annoying.
#Bmw e46 325xi electric solenoid valve in vacuum line how to#
I have ordered an INPA cable, and will be figuring out how to program the activation conditions myself. That said, this is not the first time I have heard of the 330 behaving in this manner. If lowering noise is the goal, you'd think that the 330 exhaust valve system would work the same as the 325, given its larger displacement. The former makes little sense considering the purpose of the system. The only thing I can conclude is that there are factory programming differences between the two models ,or the previous owner reprogrammed it, (doubtful). This is in contrast to my 04 325i which has its valve shut at idle, and opens as throttle is applied. However, when connected as it should be, the car is annoyingly loud at idle (I have race headers). When sucked on, the valve closes and the car is sleeper mode (sounds stock). There is vacuum in the line up to the solenoid in the trunk, and I have verified the valve is not stuck by sucking on the tube which operates it. I have tested the solenoid which operates when 12v is applied. Open valve at idle, and I'm assuming all the time, as I have no way to get out and look with the vehicle in motion. I have a 330i manufactured 11/02 which also exhibits the same behavior.
0 kommentar(er)
