Which sensor should I check, the one running to the ecu or the dash? The one running to the ecu sounds more practical I presume. I'll check that w/ an ohm meter and also see what happens when I clean out that air filter. I'm really leaning towards that right now, the filter being dirty. I remember when I went to get tuned last year that I doubled up some church socks and threw them over the maf for the drive over to Tampa because I didn't have an adapter plate for the filter. After Martin tweaked some shit, the pulls still weren't as strong as they should have been...more less, no where near what they should have been. Come to find out, the doubled up church socks where suffocating the maf because they weren't allowing proper air flow, thus making the car break up in boost and restricting nearly a hundred horse power. I've been using this air filter for roughly 3 years off and on it hasn't been cleaned in the last 13 months, sooo...