1.2L REVOTRON ENGINE 13 Disconnected or leaking vacuum line or vacuum leak at inlet manifold Inspect all vacuum lines and inlet manifold. Repair or replace as necessary. Improper grade or contaminated fuel Flush fuel system with fresh, clean, fuel of the correct type. Replace fuel filter. Faulty spark plugs, wires, or ignition coil Check ignition system components for proper operation. Replace as necessary. Malfunctioning engine management system component Perform engine management system diagnostic test as described in this section of the manual. Defective Engine Control Unit (ECU) Replace as necessary. Malfunctioning emissions system component Check tank pressure valve, purge canister valve, and charcoal canister. Repair or replace as necessary. Fuel filter if clogged. Replace the fuel filter. fuel lines are pinched or clogged Correct the routine to avoid pinch, or allow shop air to clear the clog in the fuel lines. Improper Electrical supply at pump connector If electrical supply is in proper check electrical system. In adequate fuel pump pressure IF fuel pump does not built pressure then replace. Clogged or faulty fuel injector(s) Check fuel injector operation. Replace as necessary. Incorrect valve/ignition timing Check timing system components and repair or replace as necessary. Improper firing order Check ignition system and fuel injector connections. Rectify as necessary. Exhaust system / Catcon damaged Check and take corrective action. MIL & SIL check Check using diagnostic tool for MIL & SIL. Take corrective action. Engine misfires Disconnected or leaking vacuum line or vacuum leak at inlet manifold Inspect all vacuum lines and inlet manifold. Repair or replace as necessary. Improper grade or contaminated fuel Rush fuel system with fresh, clean, fuel of the correct type. Replace fuel filter. Faulty spark plugs, wires, or ignition coil Check ignition system components for proper operation. Replace as necessary.
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