Question about 1986 Jaguar XJSC
Secondary air injection system incorrect downstream flow. this has to do with the air pump that is driven by one of the fan belts. if the check valve is not operating or the one way valve is burned through. it will trigger this code. check the valve on each side of the exhaust if v12(one on each part of manifold in L6) and remove the hose and start the engine. if exhaust flows through replace the valve/s. this can also be triggered by excessive moisture build up inside the pump and then freezing overnight not allowing the pump to rotate(pump).
Posted on Jan 30, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 24, 2016 | Jaguar XJS Cars & Trucks
Sep 25, 2015 | Jaguar Cars & Trucks
Sep 25, 2015 | 1989 Jaguar XJS 5.3
Dec 17, 2012 | 1995 Jaguar XJS
Nov 04, 2012 | Cars & Trucks
Feb 02, 2011 | Jaguar XK8 Cars & Trucks
594 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: