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R31/Z31/VLT MAF voltage spikes - Technical bulletin

Posted: Sat Sep 26, 2009 12:47 am
by Matt
Please see attached

Post any questions to this thread. I have not run this modification yet in my vehicle as its only just been discovered by a forum member, but all tested well on the bench

Posted: Sat Sep 26, 2009 1:58 am
by Matt
updated ... HR31 RB20DET added also

Posted: Mon Feb 01, 2010 4:38 pm
by bachig24u
Matt,
I noticed on page 34 of Nistune software Users Manual regarding MAF mods that 2 parallel resistors & R201 was removed in the previous mod,
Is this still required for the 87-89 ECU's as well as daughter board pin14 removal?


Kind Regards