Mud-club

Vehicle & Technical => Range Rover => Topic started by: doctorvaltar on February 27, 2007, 00:07:16

Title: Help, where is this mystery part?
Post by: doctorvaltar on February 27, 2007, 00:07:16

Just fired up my 3.9 efi that I've put in my 90, it sounded great without the exhausts on. However i have a two pin plug left over. looked at the wiring diagram and it says it goes to a purge valve. I've looked everywhere and can't find an empty socket, does anyone know where a purge valve lives?

Title: Help, where is this mystery part?
Post by: Range Rover Blues on February 28, 2007, 12:55:16

Purge valve would be fitted to the charcoal cannister on the RHS inner wing behind the header tank.  All the emisioins (breathing) from the fuel tank passes through this to collect any hydrocarbon emisions.  When the engine is running above idle but not flat out the purge val;ve opens and the engine draws air back through the cannister to lift the hydrocarbons from the carbon screen and burn them in the engine.  Think backflush.

Anyway, you can safely leave it alone, if you fit a TSR for no lambdas the ECU will ignore it.