[rb640hp]

I have a CEL and bank 1-6 and 7-12 lights on and a P1426 code (tank vent valve open) on an 08 LP640

It seems this applies to a purge valve for the emissions system or it may be something about temp differences between the cats, (the scanner said tank vent and google says cat temps)
Is this correct and can anyone point me to the component and a fix?

Thanks

 

[Si00z24]

I have a CEL and bank 1-6 and 7-12 lights on and a P1426 code (tank vent valve open) on an 08 LP640

It seems this applies to a purge valve for the emissions system or it may be something about temp differences between the cats, (the scanner said tank vent and google says cat temps)
Is this correct and can anyone point me to the component and a fix?

Thanks

I randomly get P1426 codes too. More so when it’s hot outside. I’ve been told it could be plug or coil pack related. Replaced both on mine and the issue still comes up every now and then but not as much.
Good luck on your search for the fix. I’m very interested to know what it is.