Priming Setting

[VrmmVrmm]

Whilst resetting my 'Yellow' indicator for both Speed and Tacho I've noticed another setting named Priming...choice ON or OFF. I could not find anything in the index of the manual on the IS220D just wondering can anyone shed any light on this setting and explain what it does and is it specific to the Diesel only?

Thanks in advance

[giorgoXXI]

Whilst resetting my 'Yellow' indicator for both Speed and Tacho I've noticed another setting named Priming...choice ON or OFF. I could not find anything in the index of the manual on the IS220D just wondering can anyone shed any light on this setting and explain what it does and is it specific to the Diesel only?

Thanks in advance

It is somewhere in the manual. I think it cleans the fuel system (or the injectors not sure) and yes it only applies to diesel cars. It should only be used under certain circumstances and there is a procedure to follow which is explained in the manual.

[illestjt]

Its something along...when you use your vehicle until the fuel is completely empty and somehow...the filter system can trap air meaning the diesel is drained back to the tank.. (which isnt good, but the priming function resolves this?!) I think..

[sparkz]

i found that yesterday also, i didnt put 2+2 together tho and link it do diesel priming...but it makes sence now...

on derv's afer the fuel has completely ran out (including the fuel filter being completely drained) the fuel pump doesnt have enough 'suction' to suck the new fresh fuel up to the engine from the tank..

older cars have manual pumps (under bonet - pump my hand) that 'prime' the fuel system filling the fuel lines and fuel filter so the car can then restart....this must do the same but i guess a little added electric syphon pump or something...nice idea lexus! :)

S

[steveyb]

Hi All. The priming feature in the IS220D should be used in any of the two conditions:

1. If one has run out of Diesel - and has added more to the tank

2. If the yellow light appears on the dashboard (fuel filter) indicating that the maximum level of permitted water has been reached.

There is a vague discruption on "how" and "when" this feature should be used, together with a warning about possible damage this operation may cause if not followed correctly.

Hope that helps.

Steve