I recently just had issues with my GTP when it gets up to about 3500 RPM's it cuts out and drops down to about 3000 RPMs and immediately jumps back up to 3500 RPM's. its like the tach jumps off 3500 and doesnt go any higher. it also stalls on occasions.... Does anyone know what the problem is?? I havnt driven the car much recently and dont really know what happend.. any info would be sweet