Other information:
DTC Description
DTC DETECTION LOGICTo judge malfunctions, this diagnosis measures response time of the A/F signal computed by ECM from the A/F sensor 1 signal. The time is compensated by engine operating (speed and load), fuel feedback control constant, and the A/F sensor 1 temperature index...
Valve Clearance
CHECKINGCAUTION:
Check valve clearance while engine is cold and not running.
NOTE:
Perform valve clearance inspection after removal, installation or replacement of camshaft or valve parts, or as necessary.
Remove the air duct with air cleaner case, collectors, hoses, wires, harnesses, and connectors...