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?

 

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.

 

ok. thats along the lines of what i was thinking, but i wanted to make sure of it before i did anything. thanks for the quick reply !

 

yes this is normal.

 

where do you find the cruise maps im new to microtech and mine are the exact opposite very rich at cruise

 

First you tune using hte load map and then use the RPMCrs map to make finer adjustments.