use of MAP in FI calcs

[Heelandtoe@aol.com]

I've noticed that in most ECM's all the tables that use MAP as an index  stop 
at 100 kPa.  Since its conceivable that MAP could go above 100 kPa on a high 
pressure day at WOT, I'm betting that the computer normalizes it with the 
barometric pressure as in mapbar = 100 * map/baro. This would account for the 
day to day variation in barometric pressure and normalize mapbar so that it 
better represents true engine load.  Have you guys seen any similar 
operations in your disassemblies?
jc
----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo@lists.diy-efi.org