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.
1988 Subaru XT DLFACTORY OEM SERVICE PROCEDURE
Adjustment & Inspection: Notes
CAUTION:
Never connect battery in reverse polarity. MPFI control unit will be destroyed instantly. Fuel injector and other parts will be damaged also. DO NOT disconnect battery terminals while engine is running. A large counter voltage will be generated in alternator which may damage electronic parts such as MPFI control unit. Before disconnecting connectors of each sensor or MPFI control unit, be sure to turn ignition off, or MPFI control unit may be damaged. When installing radio antenna, ensure that it is as far away from control unit as possible.
Factory Service Tools
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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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