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View Full Version : How to Alter Coast down Speed and RPM Drop.



jmsmotorsport
November 2nd, 2016, 07:34 PM
Have tuned a M6 L76 and the customer has brought up that when coming to a stop and when you coast down that it feels like the revs hang slightly before fully dropping causing it to continue pulling rather then slowing. Now what tables am I looking at here E38 PCM. Coast Downs Spark B5122 or more the correction tables B5123 & B5124 or am I looking more at the idle tables B1829 in the areas where it feels the worst? I'm sure I read somewhere a table to modify but cant find the thread again.

Appreciate any help.

joecar
November 2nd, 2016, 08:57 PM
You might have to look at the Throttle Follower tables.

jmsmotorsport
November 2nd, 2016, 09:02 PM
The B1859 table? Just decrease around the RPMs where he notices it most?