Where to start. If anybody knows how to fix these problems or has advice I'd appreciate it. Airbag light throwing a code #33. Front left makes squeeking noise is that the spring of strut? I think a vent is stuck open in the center of the dash there is wind noise behind the center vents that gets louder the faster I go but doesn't blow any air unless I actually switch to vent. Here's the important one it affects performance. The car has straight pipes but I'm thinking about putting high flow cats in. I know that's the reason for the check engine but my question is wouldn't the car run slower like this. Since the computer thinks there is a problem doesn't it automatically run richer to be safe? Even if I installed the MIL eliminators the computer would still have the wrong air to fuel ratios. I don't know what to do. Thanks