Noise, roughness, and jumps in pressure can cause a touchy or jerky accelerator pedal. Besides, I think that certain MFD becomes inefficient at certain ICP values. I can't say for sure, it's just my opinion.
Yeah, the P1211 codes were a side effect. Actually, the HPOP was forced to work harder ALL THE TIME. With most aftermarket tuning, the ICP is actually virtually unchanged. So when driving normally, the HPOP isn't working harder than stock.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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