alexideways Posted March 2, 2007 Share Posted March 2, 2007 :I have a Q45 MAF and a series 1 RB25 MAF(orderd the wrong one, need a series 2) and when I look at them, the sensor part in the plastic tube is identical between the two but, the Q45 MAF has an 3 prong plug anf the RB25 MAF has an 5 prong plug... what the hell? Quote Link to comment Share on other sites More sharing options...
alexideways Posted March 3, 2007 Author Share Posted March 3, 2007 Bump. Quote Link to comment Share on other sites More sharing options...
Tombarace14 Posted March 3, 2007 Share Posted March 3, 2007 3 prong sensors are just MAF usally (ground, 5V from ECU, and signal). 5 prong sensors have the same three but with an Intake air temp sensor built in to the MAF so theyre will be a (5v from ECU for IAT, and IAT signal) 1 Quote Link to comment Share on other sites More sharing options...
alexideways Posted March 3, 2007 Author Share Posted March 3, 2007 Well, first of all, thanks for being the only one who stepped up. Now, on my RB25 (S1) MAF, I said I had 5 prong, but now that I look at it in day light, I just noticed that it's actually 6 prong, but there's only 4 pins comming out of the MAF. So I guess that since the series 2 RB25 has a dedicated IAT sensor, it doesn't need to use the MAF for this purpose? I also see on my RB (S1) MAF that the prongs are marked as A-B-C-D-E-F and on my Q45 MAF, they're marked as B-D-E, so I guess that B,D and E are the wires that are used for MAF purposes and the other ones are for IAT, am I right here? Last one, but not the least, IF I want to use my (S1) MAF on my (S2) engine, I just have to wire B,D and E and not worry about the other ones? Thanks. Alex. Quote Link to comment Share on other sites More sharing options...
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