This may be a silly question, but the air flow arrow on my air flow sensor is pointing away from the air box, is this normal? I'm not that knowledgeable on things like this, give me an old carb any day!

srgl99 said:

This may be a silly question, but the air flow arrow on my air flow sensor is pointing away from the air box, is this normal? I'm not that knowledgeable on things like this, give me an old carb any day!

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That looks correct as the air passes from the wheel arch area, up through the lower airbox, into the upper and then down toward the intercooler.

Take it out and have a look. The hole in the sensor itself should be pointing against the direction of flow.

I just thought the arrow should be pointing towards the upper air box, as that would be where the air was flowing to?

I'll whip it out and have a look for that hole like, took the wiring off and the car seemed a little better with it unplugged.

I think I know what you mean now, that pipe is not the feeder is it?

It seems better but it aint, when i put a KnN on me ka (bows his head in shame) it woudnt run properly plugged in but did when it was unplugged, i decided to leave it unplugged which when mot came round it failed cos sensors were all screwed and the geezer i sold it to said the whole thing went kaput 2weeks after he had it. Might be completely unrelated but make sure you put everything back in okay lol!!!

Oh and btw it is round the right way, it points in direction air is coming from.

no the feeder is the one you see to the right.

It goes- Air box feed into bottom of airbox, air filter, out of the top into the airflow meter, then into the turbo. It points in the direction the air flows.

An improvement in running after disconnecting the airflow meter does not necessarily indicate an airflow meter fault- with no airflow readings, various components are disabled (EGR) and 'safe' parameter estimates are used to maintain driveability.