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Re: Lag 2 - toxic fume indicator
The toxic light warning will come on if the lamda sensor detects exhaust gases outside the normal parameters. In most cases this is due to unburnt fuel entering the exhaust. This can be due to either poor ignition or misfueling so before spending money it would be worth checking the cause.
It may do no harm to check the correct spark plugs were fitted and eveything is corerectly installed after plug replacement.
Currently in madnoel10's garage:
Honda Civic 1.4l