Microtech rpm makes map lean
#1
pwned
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Join Date: Sep 2005
Location: Northern Indiana
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rpm makes map lean
at a constant vacuum, as the rpm gets higher the afr's get lean. very lean. my cruise map is set at all 0. i know i can richen up the points either in matrix mode or just on the cruise map, but is this supposed to happen? or is something not right?
#2
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yeah its suppose to happen..thats why they have the matrix modes and cruise maps. When you have it just on a map mode with no corrections for rpm..then ecu is just opening the injectors for X time per second once it reads Y pressure, regardless what rpm the engine is at. If the injector opening time remains the same and the engine spins faster, then for each revolution of the rotor the engine is actually getting less fuel per revolution entering into the chamber than if it was rotating slower. Therefor your AFRs are gonna go higher and show a lean condition.
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