I have a 2003 Disco throwing an evap emission code. I have replaced the gas cap, I ceared the code and the the check engine light came back on with the same code when I check it with OBD II What next? Is there any way to disconnect the evap sensor to get the dash light off. I am assuming that the evap system (small leak) does not affect performance.

 

Need the fault code number!!!!!

 

Sorry yeah that might help! the code is P0442

 

So, per the code number you have a small leak which could be anywhere from the tank to the engine compartment and just about needs a smoke test to locate it.

 

My 2003 does this to once in a while my code is po441 . I have put a new purge vale and a new gas cap . Usually does this when the Idol get a little rough.

 

any ideas on what a smoke test would cost? I'd rather disconnect the sensor if possible, any ideas on if that can be done?

 

From $60 to $100.