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Richard, Jaguar Technician
Category: Jaguar
Satisfied Customers: 15556
Experience:  12 years at a Ford/Lincoln Mercury and Jaguar dealer as technician and shop foreman.
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My dash says restricted performance and engine light is on,

Customer Question

My dash says restricted performance and engine light is on
JA: Have you checked the fuses? The dashboard bulbs?
Customer: No I haven't
JA: What is the model/year of your Jaguar?
Customer: 2003 s type r
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: It just happened an hour ago. And if it's not a difficult fix then yes I'm interested in fixing mysefl
JA: Anything else you think the mechanic should know?
Customer: That's all
Submitted: 1 year ago.
Category: Jaguar
Expert:  Richard replied 1 year ago.
When these warnings come on the ECM has detected an engine management fault and stores a fault code. A Jag compatible tool is needed to read and clear these codes. You can try using an OBD II scan tool available at your local parts store. On these vehicles I see issues with engine vacuum leaks. See if you can get a code. It will be a P followed by four digits like P0171. Let me know.