Subject	The planar set-up should not influence or affect
Posted by	JMartz on July 28, 2011 at 4:28 PM
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In Reply To	Diagnosing a bad MAF in a Selin Dual MAF setup. posted by MixManMash on July 28, 2011 at 03:54 PM
Message	the function of the MAFs. Your results are interesting. With 2 MAFs and the computer set for a single one, averaging the signals provides the ECU with the correct value. When an ECU is set up for dual MAFs (before true dual like Selin), the MAF voltage was halved (by the ECU) with the assumption that the flow through both pipes was equal. For an ECU set fot singl, I am not sure if adding or averaging will work (with a single MAF) as the computer will see the full volatage (actually 1/2 since you have another hole flowing) of the MAF. Setting to add or avg should still produce an incorrect value. What is your ECU set up for?
Follow Ups	Diagnosing a bad MAF in a Selin Dual MAF setup. - MixManMash 15:54:43 07/28/11 Its your drivers side then (n/m) - Z32TT-R 16:11:22 07/28/11 Try swapping the sensors left to right and repeat - Jim (Selin Design) 16:20:54 07/28/11 Hi Jim, I've never had any issues prior to this event. - MixManMash 16:50:30 07/28/11 The planar set-up should not influence or affect - JMartz 16:28:33 07/28/11 My ECU is set up for Dual MAF. - MixManMash 16:52:24 07/28/11 I'm having exactly the same problem right now!... - arrowenterprises 17:14:25 07/28/11 Sounds like either your MAF or your MAF wiring. - MixManMash 17:25:33 07/28/11 Hoping it's not # 34. (n/m) - arrowenterprises 18:32:13 07/28/11 34 will definitely not cause idling issues. (n/m) - MixManMash 08:02:09 07/29/11 Shoot me an email and I'll help you get it sorted out (n/m) - Jim (Selin Design) 18:57:41 07/28/11 Check the value of the MAF signal with Datascan/Nistune - BigTDogg (MA) 20:03:00 07/28/11 the ink on my "newbie" t-shirt is still wet so I won't ask.. - arrowenterprises 20:22:27 07/28/11 If you plug a blazt or other diagnostic cable into the port - Barry (NJ) 21:19:11 07/28/11 Thanks Barry. (n/m) - arrowenterprises 05:38:57 07/29/11 If your MAF signal is reading 0.08 if revving or underload - BigTDogg (MA) 09:23:14 07/29/11 Check your bovs for leaking first (n/m) - ztunerz 20:30:06 07/28/11 They are plumbed in as recircs. Definitely not leaking. (n/m) - MixManMash 21:49:35 07/28/11 Do you have HID's? There was a big thread on 3zc - supermario680 07:56:05 07/29/11 Yes I do, but how can they only now be causing an issue? - MixManMash 08:01:03 07/29/11 Then it's probably not related.. - supermario680 08:25:16 07/29/11 Resolved: Driver's side MAF was bad. - MixManMash 16:03:33 07/29/11
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