When I start my 1990 Talon TSI runs fine as it warms up runs real rich has no power and boost is very high. At low RPM around 2500 its fine after that all hell brakes lose bogs down and wont go ?
Check the air cleaner and replace if necessary. ( low air volume = rich mixture ). Check/clean exhaust system as back pressure may be too high at high rpm's. Check fuel quality and do not use e-mix fuels.
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Check the air cleaner and replace if necessary. ( low air volume = rich mixture ). Check/clean exhaust system as back pressure may be too high at high rpm's. Check fuel quality and do not use e-mix fuels.