No. 15 Emission Compliance: Notes

WARNING: This page is about a different variant/trim than selected.

NO. 15 EMISSION COMPLIANCE (SKYACTIV-G 2.5, VIN M) DESCRIPTION AND POSSIBLE CAUSE

15	EMISSION COMPLIANCE
DESCRIPTION	Fails emissions test.
POSSIBLE CAUSE	Engine overheating Cooling system malfunction PCM DTC is stored Incorrect fuel injection timing Incorrect ignition timing Spark plug malfunction Ignition coil malfunction CMP sensor malfunction CKP sensor malfunction Purge solenoid valve malfunction Inadequate fuel pressure Fuel leakage at the fuel line and/or fuel injector Fuel pressure sensor or related circuit malfunction High pressure fuel pump malfunction Spill valve control solenoid valve control circuit malfunction (damage to driver in PCM caused by short circuit to ground system) Spill valve control solenoid valve (built-into high pressure fuel pump) malfunction Relief valve (built-into high pressure fuel pump) malfunction Fuel line restriction Fuel pump unit malfunction Air leakage from intake-air system Vacuum lines leakage or blockage Charcoal canister damage Improper engine coolant level Excessive carbon built-up in combustion chamber Improper engine compression Improper intake valve timing Improper exhaust valve timing Exhaust system and/or TWC restriction Exhaust gas leakage from exhaust system TWC malfunction (PCM DTC is stored). Positive crankcase ventilation system malfunction PCV valve malfunction or incorrect valve installation Clogging in positive crankcase ventilation system hoses (PCV valve hose, ventilation hose) WARNING: The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services: Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel. Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injury or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual. (See BEFORE SERVICE PRECAUTION [SKYACTIV-G 2.5 (VIN M)] .) (See AFTER SERVICE PRECAUTION [SKYACTIV-G 2.5 (VIN M)] ). CAUTION: Disconnecting/connecting the quick release connector without cleaning it may possibly cause damage to the fuel pipe and quick release connector. Always clean the quick release connector joint area before disconnecting/connecting, and make sure that it is free of foreign matter.

CAUTION:

Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.