DTC B1748 KIA
Cylinder Number 1 Misfire Detected
Cylinder Number 1 Misfire Detected
Description
Engine running at an RPM greater than 600 but less than 7000 the DME detected a misfire or uneven engine running in two or more cylinders within 1000 engine revolutions. The sum of misfires caused an increase in emissions for the first 1000 revolutions after start up, or the sum of misfires caused catalyst damage after the first 200 engine revolutions. Time after start less than one second. Note: If the misfire is severe, the MIL will flash on off on the first trip!
Cause and Solution
Air leak in the intake manifold, or in the EGR or DME system Base engine mechanical problem Fuel delivery component problem (i. e. , a contaminated, dirty or sticking fuel injector) Fuel pump relay defective Ignition coil fuses have failed Ignition system problem (dirty damaged coil or plug) Engine speed (RPM) sensor has failed Camshaft position sensors have failed Ignition coil is faulty Spark plugs are not working properly or are not gapped properly
Video Guide
Diagnostic Info
- DTC Code: B1748
- Brand: KIA