sparkplug HONDA CIVIC 1997 6.G Workshop Manual

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NOTE: lf there is no freeze data of mis_
firing, test drives under various condi
tions are necessary.
(From page 11'168)
Intermittent misfire due to sparkplug fouling, etc. (firing is OK arthis time).
ls DTC P0301, P0302, P0303,or P0304 indicated?
Does the misfire occur in theother cylinder?Replace the faulty spark plug.
Check for fuel iniector mallunc-
l|on:1. Exchange the fLrel injectorfrom the problem cylinderwith one from another cylinder.2. Let the engine idle for trrvo min-
utes.3. Test-drive the vehicle severaltimes in the range ot the freeze
data.
lntermitt€nt mistire due to badcontact in the fuel iniector con-nector (firing is OK at this time).
ls DTC P0301, P0302, P0303,or P0304 indicated?
Does the mistire occur in theother cylinder?Replace the taulty fuel injector.
Check lhe following items:. Cylinder leak-down. Compression. Crankshatt speod tluctuation
{CKF) sensoi
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