How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Richard Your Own Question
Richard, Jaguar Technician
Category: Jaguar
Satisfied Customers: 15311
Experience:  12 years at a Ford/Lincoln Mercury and Jaguar dealer as technician and shop foreman.
Type Your Jaguar Question Here...
Richard is online now
A new question is answered every 9 seconds

Jaguar X Type: I have a 2002 X type 3.0 I have recently installed

This answer was rated:

I have a 2002 X type 3.0 I have recently installed a new cat converter. After clearing the codes I am not able to reset the last 2 monitors so I can get it inspected. I have driven the car 25 miles not using any brakes and keeping a steady speed then coming to a stop without using the brakes. I was told this would reset the monitors, but it did not.
Any advise?
Hello and welcome to

Which monitors are currently not ready/set?
Customer: replied 3 years ago.

Supp heated Cat


Heated Oxygen sensor and Cat
Customer: replied 3 years ago.

5 monitors are complete.

2 are are Supp. heated Cat and Cont: Component


Ok Component will not set until the cat does. I will send over the specific cat monitor drive cycle.
Customer: replied 3 years ago.

Please send me the specific cat monitor drive cycle.

I will be giving you excellent service, Thanks

Start the engine and bring to normal operating temp above 180 degrees F. Drive the vehicle steadily between 1700-2500 rpm for 5 minutes. Repeat this twice.
Customer: replied 3 years ago.

Do I come to a full stop after the first 5 minutes and start over again?

After the drive allow some time to let the vehicle cool and repeat the same drive cycle.
Customer: replied 3 years ago.

I'll give it a try and let you know, Thanks

Ok let me know.
Customer: replied 3 years ago.

Your advise did not solve the problem. Is there anything else I can try?

Are there any fault codes stored. Did you use a Jag converter?
Customer: replied 3 years ago.

No Codes are stored. I have driven over 200 miles and no codes. I used a regular scanner.

Did you replace it with a new part from Jag?
Customer: replied 3 years ago.


Ok we need to keep driving it til a fault code is stored or it completes a drive cycle. We may have to take it to a shop or dealer that has a scan tool which can read pending codes.
Richard and 6 other Jaguar Specialists are ready to help you
Customer: replied 3 years ago.

I have driven it over 300 miles and no trouble codes. However the monitors have not reset, and I cannot get the car inspected.

You may have to go to the dealer and have them use their scan tool to see if any pending codes are stored.

Related Jaguar Questions