Pics show for me.pics doesn't show?
also can you summarize what you did to do the swap? i have a 323i Wagon that im willing to do a 330 engine soon.
Based on the MS42 documents, it's the other way around. The motor overrides the cable unless a fault is detectedHave verified on the older MS42 cable driven systems that when inpa or a logger show 80% throttle openings the throttle is actually at 100.
Hakken, the cable driven throttles are just that... with the attached motor having the ability to override the drivers commands and provide functions such as cruise control and traction control. However, the throttle operates primarily based on the mechanical cable in MS42 systems.
Based on the MS42 documents, it's the other way around. The motor overrides the cable unless a fault is detected
Also according to Tool32, the unit the MS42 and MS43 for throttle position use is degrees, not %. I don't know if the 81º limitation is because the "0" position is actually 9 degrees or something along those lines
Page 11 says this...
• The accelerator position potentionmeters (PWG = driver’s wish) are integrated in the MDK housing.
• A throttle cable is used to actuate the accelerator pedal position potentiometers and also serves as a backup to open the throttle plate (full control) if the MDK system is in failsafe."
And Page 20 says this:
Air flow into the engine is regulated by the Throttle Valve and/or the Idle Air Actuator. Both of these air “passages” are necessary for smooth engine operation from idle to full load. On the MS42/MS43 system, the Throttle Valve and the Idle Air Actuator are electrically controlled. All of the ECM monitoring, processing and output functions are a result of regulated air flow.
Page 26 does say this though:
MDK: In the upper PWG range (approximately >60%), the MDK is switched off. The throttle valve is opened wider exclusively by the pulley via the spring linkage. At the full throttle position, “kickdown” is obtained by depressing the accelerator pedal fully. This will overwind the pulley, but the spring linkage will not move the throttle plate past 90 degrees of rotation.
So it becomes a "normal" throttle body after around 60% throttle. Below that it behaves like a DBW system
The graph on page 26 makes it pretty clear. Upto around 60%, the motor overrides driver input constantly. After that it lets the mechanical linkage do its thingI noticed it said that earlier (on page 11, I had my quote incorrectly referenced, it is from page 12). However it conflicts with what is said on page 12 where it describes the linkage as a hard mechanical linkage to the pedal and an overriding pulley for the motor driven portion. And when you think about it, this is the only way it could work for using the hard linkage as a mechanical fail safe. If it was only engaged when told to, it could fail to function in the case of general malfunction of the throttle body. I don't disagree that the mdk has more function than simply traction control and cruise control but I do think it functions as more of a modifier to driver mechanical inputs vs a fully electronic system with only mechanical backup and override over 60% throttle.
Well it seems my galletto 1260 is broken. Does anyone have a link to a place I can buy the real cable? The cheap ebay one is known to have issues I guess.Please have a download of the calibration file of your ecu and check the softwareversion of it or send it to me at ms43info @ yahoo.com