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1995-2002 Range Rover P38A
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Discussion Starter #1
2001 RR. Just had this light go on yesterday. I'm not sure what triggers this. Vehicle has 96K miles. Oil was changed 1,000 miles ago. Tune up 2,000 miles ago. Is it just triggered by a mileage counter of some sort or does this indicate some other problem? Thanks.
 

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Usually triggered by emissions related fault. The trigger can be a whole gamut of things. Have you checked the codes your OBD is registering?
 

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1995-2002 Range Rover P38A
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As you have done a "Recent" tune up.
Go back and double check that all the plug wires are on good and solid. A consistent but slight misfire can trigger the SES light.
A code reader would probably come up with "Catalyst damaging misfire"
As Theo suggests, get the scan tool on it and it will tell you why it is on.
Hmmm......Loose fuel cap will trigger it as well.........
 
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