My car is 13 sho,pp when I swapped my old map for 3bar,i noticed a little bit of dirt around the plug hole,i cleaned around it,prior to install,i would inspect the sensor to see if any dirt is inside those electrodes and use some maf cleaner whch is the safest,not to strong and no residue.Also you can do a little troubleshooting swap the new 3bar with the onr by the throttle body same part#that one is also 3bar.