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Discussion Starter · #1 ·
The only hitch that I seem to see people having with using a stock ecu with emanage in a turbo appl. is going lean when the car is still running it open loop mode and part throttle boost.

My question is has anyone also converted their car to a return style fuel system and still have this problem? I ran a similar setup on a turbo 01 MR2 with good results. I would think the boost SHOULD raise fuel pressure at part throttle and compensate for the ecu trying to stay at 14.7 :dontknow:
 

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Doesn't matter what the fuel pressure is - the ECU will keep pullling fuel until it hits 14.7 air-fuel. With a wideband, it can do this very quickly and very accurately.
 
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