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hopefully somebody can help....stagea series 2 rb25det neo automatic/tiptronic

as soon as i hit boost on the gauge my car decides to display the check engine light and starts running rough.ive also noticed that when i take off it feels like im riding the clutch through 1st gear.i flashed the codes and it is displaying 3 codes- 11,12 & 26 which i believe are crank angle sensor/camshaft position sensor,airflow meter & pressure sensor.

what would cause all 3 codes?????

ive reset the codes took it for a drive tested it again and same codes are displayed

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Possibly any combination or even one of thes things could then tell the ecu other things are happening...check the connections on them all anyway make sire nothing simple or obvious,make sire cas hasn't been tampered with or anyone had it off and on again incorrectly?if u have a mate or anyone with a good afm try it and see does it change in any way?least u can eliminate one thing at a time if u try one thats running ok on another engine

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