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The P1211 may NOT be from the Hypertech, but actually telling you there's a problem with the HPOP, ICP sensor, or IPR. P1211 indicates an inability for the PCM to achieve target oil pressure in the HPO system. IPR problem or leaking injector o-rings may be suspect.
What concerns me is that it went all of a sudden. It almost sounds like an injector o-ring or something like that with the smoke you're describing. Or worse, a cracked/broken nozzle.
Does the engine *sound* bad, or does it just smoke? Any knocking or anything like that?
Oh yeah... does the Hypertech have any diagnostic capability to monitor ICP or anything like that?
If you need, I'm up for a bit and you're welcome to give me a shout and I can toss a few ideas at you.
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Last edited by ASEMechanic; 08-16-2009 at 12:32 AM.
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