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Richard, Jaguar Technician
Category: Jaguar
Satisfied Customers: 15555
Experience:  12 years at a Ford/Lincoln Mercury and Jaguar dealer as technician and shop foreman.
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I have a 1994 jaguar xj12sedan. check engine light comes on

Customer Question

i have a 1994 jaguar xj12sedan. check engine light comes on after running for
a few minutes. then, I check the vcm and fuel fail code 13, comes up. please let
me know what is causing this. thanks, ***** *****
Submitted: 2 years ago.
Category: Jaguar
Expert:  Richard replied 2 years ago.

That code 13 is for the MAP sensor. The sensor is in the ECU located in the right rear of the trunk. First make sure we have vacuum present at the sensor. If not then the line is most likely broken near the firewall.