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 MANUALSJAGUAR2002XK8 2D COUPEREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - SELF-DIAGNOSTICSDIAGNOSTIC TROUBLE CODE IDENTIFICATIONDTC P0125: ENGINE COOLANT TEMPERATURE SENSOR RESPONSE (FOR CLOSED LOOP FUEL CONTROL)SYSTEM DEFAULT ACTION
2002 Jaguar XK8 2D Coupe
System Default Action
2002 Jaguar XK8 2D CoupeSECTION System Default Action
When Check Engine Indicator is activated (DTC flagged; second trip), ECM:
- Substitutes transmission fluid temperature via Controller Area Network (CAN).
- Limits engine speed to 3000 RPM.
- Inhibits canister purge.
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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.