Re: Fueling issues?
1. Fuel pressure
2. Boost
3. Injectors
You have to address one of the three to prevent leaning.
1. Increase fuel pressure to counteract elevated boost on the injectors.
2. Reduce boost levels so you don’t need additional fuel pressure to counteract the effects elevated boost has on our injectors.
3. Get larger injectors to offset the elevated boost seen by the injectors.
The SL55 fuel pump does not increase fuel pressure enough to counteract elevated boost on the injectors because it is still governed by our filter/regulator setup.