im on the freeway nite time in 5th gear downshft to fourth and start redling (got my piping today and it picks up by the way high end by the way 02 sensor is out next to test pipe) as im redlinng my check engine lights comes on then 1st gear my car doenst move but its boostin and the car is reving but seems like my car wasnt goin anywhere like the timing was fuked up then i reseted my ecu on the street and statrted it up no check light and the car is running fine wut was that?

 

check valves.

 

I'm sorry, but what the hell did you say? Sentences are your friend.

 

What was what...your code?

My psychic abilities are telling me it might have been your MAP sensor.