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Hey guys. I am maxing out my stock air flow meter and the guys at Croyden say it might be faulty. There is another one sitting in the back of my car as i just brought it. Could you please tell me what color sticker or part number in on a rb25 one as i suspect this one might be a rb20. What color are the rb20det ones.

Help asap required. Cheers

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https://www.sau.com.au/forums/topic/231387-rb25det-air-flow-meter/
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Everything you need to know about the AFMs are on the link..

Green = Series 1

Pink = Series 2

Rb20 is the same as S1 AFM

http://paulr33.skylinesaustralia.com/diagr...ter-wiring.html

If they are maxing out best to upgrade to a Z32..

yeah thanks heaps for that guys. Much appreciated. I dont need to upgrade there is something wrong with this one i think. It is hitting 4.8 volts at stock boost. So yeah think it is shot but there is another in the car they are both green. Thanks heaps.

Oh does it matter what rb25det you have as to whether you run the series 1 or 2 AF meter. I am not sure which series the motor came out of. Is there a way of finding out?

the site tells you im sure of it

green label

rb20

rb25 series 1

pink label

rb25 series 2

you can mix and match but you have to cut wires

so if you have green label, go for an rb20 or rb25 s1 afm

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