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6E–304 4JH1 ENGINE DRIVEABILITY AND EMISSIONS 10 Remove the CKP sensor from the flywheel housing • Objects sticking the CKP sensor. • Objects sticking the CKP sensor pulser. — Verify repair Go to Step 11 11 Check the CKP sensor harness for the following • Check for poor connector connection. • Check for misrouted harness. • Check for any accessory parts which may cause electric interference. If a problem is found, repair as necessary. — Verify repair Go to Step 12 12 Substitute a known good CKP sensor and recheck. — Go to Step 13 Go to Step 14 13 Replace the CKP sensor. — Verify repair — 14 Using the vacuum pump and check the exhaust • Restrict shaft movement. Check for objects sticking the shaft, broken diaphragm or excessive carbon Was a problem found? — Verify repair Go to Step 15 15 Check the exhaust system for a possible restriction. • Damaged or collapsed pipes or catalytic converter. • Internal muffler failure. — Verify repair Go to Step 16 16 Visually/physically inspect for the following conditions. • Restrict fuel supply system. Check for a pinched fuel hose/pipe. • Check for a condition that causes fuel waxing or icing, such as the customer is using an incorrect If a problem is found, repair as necessary. — Verify repair Go to Step 17 17 Replace the fuel filter. — Verify repair Go to Step 18 Step Action Value(s) Yes No |