Unlock the Truth Understanding the Root Causes of OBDII CAN Safety Test Failures

Check your fuses to make sure they haven't gone bad before proceeding to further diagnostics. A clogged port can also be the cause of your OBD scanner not ... An incorrectly tightened gas cap will activate the check engine light. A malfunctioning oxygen sensor is another common offender. Oxygen sensors ... Technically speaking, the PCM should store a DTC indicating some type of internal malfunction. But, in the real world, if your scan tool ... I need to renew an out-of-state vehicle registration, but I am temporarily living in North Carolina. Can I have my vehicle inspected? How does OBDII help the ... They may disconnected the battery or cleared the emissions readiness tests for some reason. Best thing to do is get an OBDII reader, check ... Some sensors, such as the mass air flow (MAF) sensor and the engine knock sensor, may affect how the engine runs as they begin to fail. This can also result in ... If there is excessive pollution, it means the emissions control system is not functioning properly, the vehicle needs repair and it will fail DEQ's test. This ... Understanding OBDII Failures. 1. Reasons Your Vehicle May Have Failed The OBDII Test. Catalytic Converter failure,. Faulty gas cap,. Fuel ... Vehicles that pass the enhanced safety inspection and the. OBD II test will be issued a New. Hampshire vehicle inspection sticker. Vehicles that fail the safety ... Problems with spark plugs or ignition coils can lead to misfires and poor engine performance. Timing issues affecting ignition timing may also ...