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.
Fuel Injection System - BOSCH LH JETRONIC II: Introduction: Battery
Do not disconnect battery when engine is running. Disconnect battery when boost charging. Do not use boost chargers with a voltage rating of more than 16V when jump starting engine.
It is important when testing the different components to ensure that battery voltage in not too low. A battery charger can be connected if necessary. Maximum charging current 15A at max charging voltage of 16V.
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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.