Logo

U1218 Engine Trouble Code

U1218 Engine

When you check engine light came on code U1218 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the U1218 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U1218 code can be about replacing a broken oxygen sensor can eventually lead to a busted catalytic convertor which can cost upwards of $2,000. Taking your car into a shop will cost you around $200 depending on the car. However, an oxygen sensor is easy to replace on many cars and is usually detailed in the owner's manual. If you know where the sensor is, you only have to unclip the old sensor and replace it with a new one. Regardless of how you approach it, you should get this fixed right away.

U1218 Code Meaning :

U 1 2 1 8
OBD-II Diagnostic Network (U) Trouble Code For Engine Fuel And Air Metering Ambient Air Temperature Sensor Circuit Low Ignition/Distributor Engine Speed Input Circuit Malfunction Timing Reference High Resolution Signal A Too Many Pulses

Regarding the U1218 code, it would probably be worthwhile to carefully inspect the wire harness near the intake manifold bracket. This is done most easily from below the car in the area near the oil filter.

U1218 OBD-II Diagnostic Network (U) Trouble Code Description

U1218 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.

Reason For U1218 Code

The reason of U1218 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low.

U1218 DTCs may also be triggered by faults earlier down the line. For example, a dirty MAF sensor might be causing the car to overcompensate in its fuel-trim adjustments. As a result, oxygen sensors are likely to report fuel mixture problems.