Thread: What makes an Economy tune?
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Old Sun, November 22nd, 2009, 09:52 PM
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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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