Thread: Smoke Tune tuning on Check Engine light
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Old Sun, January 10th, 2010, 01:51 PM
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It's hard to say. Bill usually lowers the desired injection pressure under higher loads/RPM on the Smoke Show tunes.

I would venture to say that the ICP is lower than desired (P1211 Code) but without actually scanning it, it's impossible to say for sure. You may have an overboost code, but some trucks don't turn on the check engine light for that.
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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.