Quote:
Originally Posted by KoolBRZ
0% PI tables work fine showing Pi only at idle, sometimes, 100% DI cures every single problem I have ever had with fueling. Problems I have tried to fix with AVCS tuning. I hate PI now. It's louder, less economical, and accelerates worse than DI. I'm trying to work with AVCS timing now to get the Intake Late/Exhaust Late internal EGR working correctly. I'm not sure if I can do it with DI alone, or if I need PI to get it to work correctly. I'm just concentrating on the area from .3-.5 load, and from 1200-2000 rpms. That should boost my highway mileage.
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I wouldn't run any egr timing...... but to do so just bump up the exhaust timing...
For MPG at lower rpm go to about 10-12 on the intake and 8-10 on the exhaust... That should still produce good cruising power and good MPG....
Changing the DI / PI percentage will also change your F/A ratio, I think you van run more fuel with port injection...