Took off the muffler today and now the check engine light is on??? Thanks

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2001 XKR (added by GGG)

 

Welcome to the forum oldtimer69,

Putting it back on is optional but if you want to know why the CEL is on, putting a scantool on is essential. If you do, then post the codes here for advice on possible causes.

When you get a minute, please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some info about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

 

hopefully you didn't jar loose one of the oxygen sensors or something.. but yeah the code will tell you exactly what's up hope you figure it out.. :/

 

Got 0455 code Thanks

 

"P0455: EVAP system leak detected – large"

Causes:

Fuel cap off
Fuel cap seal defective / missing
EVAP system leak (canister damage, pipework damage)
EVAP Canister purge valve to engine purge pipe: blocked, leaking, disconnected
EVAP Canister purge valve failure (stuck closed)
EVAP Canister close valve failure (stuck open)
Fuel tank leak

The front side of the gas tank has a number of emissions-related components (canisters, hoses, etc.) in the same general neighborhood as the muffler(s). Might be worth revisiting...