MAF problems please help
Thread Starter
Intermediate
Joined: Jun 2002
Posts: 25
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From: Amelia Ohio
MAF problems please help
I have a 85 L98 and I'm planning to put a newer 165 computer in soon but until then i need a new MAF, before i buy one i wanted to make sure it will work with the newer computer. So i went to my local auto parts store and i was given diferrent part #'s, the thing that confuses me is the # for an 85 and an 86 iron were the same and the #'s for an 85 and 86 aluminum were different so that means in 86 there were two MAF sensors one for iron head cars and one for alumunum head cars. Here's the kicker my 85 was built late in 85 and has the one piece rear main seal block and aluminum heads but still the 870 computer so what MAF do i need? 
Drifting
Joined: Mar 2005
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From: GA
Just get the 85 MAF. The 870 ECM used a MAF with a "pulsed" MAF signal and the later ones were a steady DC voltage. The pulsed signal MAF works exceptionally well with the 165 ECM...sometimes better than the MAF made for the 165.
I am currently running an 85 MAF with a 165 ECM, no problems.
I am currently running an 85 MAF with a 165 ECM, no problems.
Team Owner
Joined: Sep 2001
Posts: 62,139
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From: Athens AL
C7 of the Year - Unmodified Finalist 2021
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Don't worry about that difference, its still basically the same.
The relays are different though, 86 has 2 relays on the firewall behind the battery, and 85 has one larger burnoff module stuck in the passenger dash, thats the difference I would be concerned with.
The relays are different though, 86 has 2 relays on the firewall behind the battery, and 85 has one larger burnoff module stuck in the passenger dash, thats the difference I would be concerned with.
