I know that an ms45.1 burble tune is possible, but it seems like it is a well-kept I'll try my best to disclose what I did to achieve burble tune. I know my overrun state is set correctly, but I can't seem to figure out where to retard the timing on fuel cut-off. Do you have more specific instructions I've been through every table that contains "pu" or "puc" looking for the ms45.1's versions of the trailing throttle cutoff ignition tables on the ms43. I have tested just about everything I can think of over the course of a few months now, still to no avail. It utilizes a set of parameters which set the delay entering trailing throttle, but personally, I believe using the fuel cut-off ignition timing tables is perfectly satisfactory for what you desire. There is a method where one can use the RON ignition tables to get pops on decel, but its a bit more complicated than what I described, and I have yet to experimented with that method. These parameters determine trailing throttle target ignition timing, even when fuel cut-off is not in effect.
The easiest way to get pops on decel is to use the the parameters that control ignition advance trailing throttle fuel cut-off. Adjusting timing numbers in those tables will not change timing when the vehicle is in trailing throttle. with catless headers, you can have so much more fun with a burble tune, and actually get real gunshot levels of volume from pops.įrom what I have found, the RON maps are only utilized when the vehicle is not in trailing throttle. Just a small piece of advice, if your vehicle has a stock exhaust, it aint worth it to try and burble tune. If you wanna get real crazy, increase fuel injection time on the left most Column (off throttle) in the Warm engine PT tables to get louder pops and bigger flames. Also another way to achieve those violent gunshot backfires on decel is to retard ignition timing on decel (trailing throttle) and setting the fuel cut RPM to an RPM the engine will never reach, so the car will continue to dump fuel into the cylinders on decel. But, a stutter box will permit ignition cut or 2-step to exist. 2-step demands ignition cut, but there are no parameters in the DME that can turn on an ignition cut style launch control, better know as 2-step. As far as I know, on these Siemens DME's there is no way to set up a proper 2-step launch control through manipulating parameters.
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