Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSKIA2013FORTE KOUP EX, STANDARD TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM DIAGNOSIS (1 OF 3) - EXCEPT SULEVDTC P0170: FUEL TRIM (BANK 1)SCANTOOL DIAGNOSTICSMONITOR ACTUATION TEST
2013 Kia Forte Koup EX, Standard Trans
Monitor Actuation Test
2013 Kia Forte Koup EX, Standard TransSECTION Monitor Actuation Test
NOTE:
The main purpose of this test is to identify potential engine mechanical condition problems and fuel and ignition systems problems that are not common to all cylinders. For best results, perform this test while maintaining as steady an RPM reading as possible. Caution! Before beginning tests; set the parking brake, place gear selector in P or N and block drive wheels for safety.
- Warm up the engine to normal operating temperature and let it idle.
- Install Scan Tool and select INJECTOR #1 parameter on the Actuation Test mode.
- Monitor engine RPM and shut off the injector #1 by pressing "START (F1)" key.
- Repeat procedure on all injectors and record the engine RPM.
Specification : All cylinders should show an even RPM drop.
- Was each cylinder's RPM drop within the same value?
YES
- Go to next step as below
NO
- Cylinders with the least amount of RPM drop are not contributing their share of power. Go to INJECTOR
procedure and check the suspect cylinders.NOTE: If the RPM loss between cylinders is quite large (200 RPM or more) and engine has high mileage, there is possibility of engine wear. Perform compression test with pressure gauge to check the engine wear.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.