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.
Check Power Balance
This test is to find out that possible cause of the problem is error in specific cylinder or fuel system. Warm up the engine to normal operating temperature for getting a reliable result.
- Warm up the engine and maintain idle state.
- Using GDS, select engine rpm parameter in sensor display window and injector in actuation test window together as follow figure
- Recode engine rpm at a time when injector stops working after press "Start" button in actuation test window.
- Recode engine rpm at a time when injector stops working after press "Start" button in actuation test window.
Specification : The deviation of the engine rpm between each cylinder should be same.
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.