Engine Performance problem
1999 Other Jaguar Models V8 Two Wheel Drive Automatic 53500 miles
On my 1999 XK8 Jaguar " performance compromised" comes up on my digital read out and then the " Check engine" light comes on. Performance compromised goes out but the check engine light stays on. Ran a diagnostic on it and it comes up clear and the check engine goes out when reset. It does show lean fuel on the diagnostic. What do I need to do?