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 Pressure Hold Inspection
- Disconnect negative battery terminal.CAUTION: The fuel system remains under pressure when the engine is not running. Release fuel system pressure before disconnecting any fuel line to reduce the chance of personal injury or fire damage to vehicle components.
- Release fuel system pressure.
- Raise a vehicle.
- Install SST (OK2A1 131 001A) to fuel filter as described in figure below.
- Connect negative battery terminal.
- Connect data link connector terminals FUEL PUMP and B+ with jumper wire.
- Turn ignition switch ON for 10 seconds to operate fuel pump.
- Turn ignition switch OFF and remove jumper wire.
- Inspect fuel pressure after 25 minutes.
Fuel pressure:
More than 25 psi (180 kPa, 1.8 kg/cm2 )
- If not as specified, check the following components and inspect as necessary:
- Fuel pump
- Pressure regulator
- Injectors
Use the Manual With the Right Hardware
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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.
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