p0571

ENGINE/DRIVABILITY ** Feels great, AFR looks good, but boost (18 PSI+) seems to be climbing higher than I feel comfortable with. Up to 23 PSI! Logs uploaded. Please advise. *Also, the horn doesn't work and brake lights don't work..? Ugh... **Update: found fuse #38 (horn and brake lights)...

ENGINE/DRIVABILITY Year/Make/Model: 2007 Mazdaspeed 3 Mileage: 207,000 miles Location/Alitutude: Missouri Ozarks Concern: Engine will not idle, or occasionally will hang on with a very rough idle, then die; when rolling slow in 1st or 2nd gear, gas pedal is VERY touchy and causes the car to...