SFI System - Basic Inspection

STEP 1. - BATTERY VOLTAGE

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STEP 2. - ENGINE CRANKS?





STEP 3. - ENGINE STARTS?





STEP 4. - CHECK AIR FILTER





STEP 5. - CHECK IDLE SPEED

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STEP 6. - CHECK IGNITION TIMING

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STEP 7. - CHECK FUEL PRESSURE

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STEP 8. - CHECK FOR SPARK

When the malfunction code is not confirmed in the DTC check, troubleshooting should be performed in the order for all possible circuits to be considered as the causes of the problems. In many cases, by carrying out the basic engine check shown in the following flow chart, the location causing the problem can be found quickly and efficiently. Therefore, use of this check is essential in engine troubleshooting.