P0305 Cylinder 5 – misfire detected Engine mechanical fault, wiring, ignitiion/fuel system, injector, ECT/MAF sensor, ECM
Have you done anything different to your car recently, modifications or anything?
Pull and check the plug in cylinder 5 yet? How many miles on your wires? How is the MAF? You have a CAI on it, the wire to the MAF tight, is it dirty, etc.? Just a couple things I would check.
Also, any idea which 14xx code it was?
P1400 Manifold Differential Pressure Sensor
P1401 DMTL Performance
P1402 DMTL Motor Circuit
P1403 DMTL Valve Circuit
P1404 DMTL Heater Circuit
P1405 EGR Temperature Incorrect
P1415 2nd Air Injection Insufficient (B1)
P1416 Secondary Air Injection
P1418 2nd Air Injection Insufficient (B2)
P1419 2nd Air Injection Valve
P1440 EVAP System-Vent Circuit
P1440 Canister Valve Open/Short
P1443 EVAP System - Tank Cap Missing
P1458 A/C Switch Malfunction