Engine light just came on

[shimmy]

ive used Tesco 99 for 4 years with 100 cell cats and never had an emissions light come on

good you got it sorted though

Shimmy

Originally Posted by mattCSLnut

Just a quick update with regards to my engine (emissions) light coming on over the weekend, after Tesco 99 fill up. The ECU has been interrogated and the only fault (if you can call it that) was the great discovery that I had non standard cats . Both Andy @ Murketts BMW as well as my reputable Indy I've used for many years,collectively pointed at the poor quality of fuel used. Despite the Tesco 99 octane fuel being high octane it isn't always consistent. Remember Tesco being on the News some time ago with people in regular, non high performance cars conking out with failed Cats / Lambda sensors. The fault has been cleared, I added 30 litres of my choice fuel (Shell V-Power 9 to the CSL and all seems well again, after a further spirited 60 miles the light is still out . Never again, Tesco can keep their over hyped, irregular Peesh THANX again to all who cared to share their thoughts