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As above check battery volts under load
Check DI computer is bolted to engine with all 3 mount bolts thats its ground, it goes nuts if gound is bad
Quite a few MAP sensors fail
Deliceous uses a weird hybrid SPEED Density type tuning on many turbos which relys on MAP (pressure sensor) for fueling not MAF.
Check fuel pressure and fuel pump
and for intake or exhaust leaks
check all hoses including ones under intake manifold clamped
They are the common causes
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