Pardon me from being stupid I haven't had my jag long but as of yet I haven't found the place to plug in my diagnostic checking tool, I got an engine management light on all the time?

 

Peter,

Slide your hand down the end of the dash on the driver's side ......



Graham

 

In every passenger car & truck I've encountered, the OBD plug is under the dash above the driver's knee. Sometimes it's near the steering column, sometimes it's near the driver's front door hinge (the latter being the case for our X-Types).

 

Thanks a lot for speedy replies.

 

OK found it and plugged my little code reader in it comes up with 0420 and 1111 pending, now 0420 is apparently pointing to the Cat converter not sure what the 1111 pending means, anyone got any ideas??

 

Peter,

No worries regarding the P1111. It is a readiness code telling you the ECM has completed a drive cycle.

 

Wheres the best place to get a cat converter I suspect they will be expensive.

 

Nokiad,

If you do a search on this site you will find a lot of discussion regarding Cat Converters.

Here is one to get you started . . .


https://www.jaguarforums.com/forum/x...nverter-64693/

 

Many thanks for that just like I suspected gonna be very expensive.

 

+1 to USarmor's good advice to ignore the P1111 code. The post and video below explain why.

https://www.jaguarforums.com/forum/x...e-p1111-36127/


The error code for a bad catalytic converter, P0420 for Bank 1 firewall side, P0430 for Bank 2 radiator side, can be caused by a faulty oxygen sensor. Try swapping oxygen sensors between Bank 1 and Bank 2, both the upstream and downstream sensors. If the P0420 code clears and is replaced by a P0430 code, the problem is a faulty oxygen sensor, which is much easier and cheaper to replace than a catalytic converter. Here's more info:

P0420 Catalyst System Efficiency Below Threshold (Bank 2) - Page 2