DTC U1097 Isuzu
Misfire Crank Wheel Tooth Count
Misfire Crank Wheel Tooth Count
Description
Engine running under positive torque conditions, and the DME detected a misfire or uneven engine function as well as a tooth error of plus or minus one or two teeth during the count. Note: If the misfire is severe, the MIL will flash on off on the 1st 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: U1097
- Brand: Isuzu