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MAF burnoff relay vs MAF power relay?

Joined
Oct 30, 2001
Messages
2,273
Location
Glen Burnie, MD, USA
Corvette
1986 Bright Red Coupe
I'm also now getting a CEL code for "MAF Burnoff Relay"... oddly, the code gets thrown while the car is driving at highway speeds. I thought the MAF burnoff relay was only used after the engine was stopped?

So I'm trying to replace the relay, but I'm finding two parts available online and only one locally. Online, at Corvette Central, I find a MAF Burnoff Relay *and* a MAF Power Relay. At AutoZone, I only can find a "Maf Relay". No pictures are given of either part and I have no idea if there is any difference or which part AutoZone actually carries. Any clues?

Thanks.
[RICHR]
 
T

tonylong

Guest
If memory serves me I had two relays located behind the battery. They used the same part, however.
HTH
 
Joined
Oct 30, 2001
Messages
2,273
Location
Glen Burnie, MD, USA
Corvette
1986 Bright Red Coupe
If memory serves me I had two relays located behind the battery. They used the same part, however.
HTH

I think those are the fuel pump and overdrive relays, by the brake booster? The MAF burnoff one is supposed to be under the dash by the ECM - or so my Haynes says.
[RICHR]
 

SoLow

Well-known member
Joined
Apr 25, 2004
Messages
221
Location
Atlanta Ga
Corvette
87 dark red coupe 96 Pro Street Project
Mine are located behind the battery on the fire wall near the door and are both the same part number.
 
Joined
Jan 15, 2004
Messages
2,240
Location
Northern Indiana
Corvette
1987 Z52 Black Convertible
Same with mine. I replaced them both right after I purchased my car.
 
Joined
Oct 30, 2001
Messages
2,273
Location
Glen Burnie, MD, USA
Corvette
1986 Bright Red Coupe
Hmmmmm. Anyone have an AC Delco part number? I'll have to look by the battery now.
Thanks.
[RICHR]
 
Joined
Oct 30, 2001
Messages
2,273
Location
Glen Burnie, MD, USA
Corvette
1986 Bright Red Coupe
Ah hah... now I see where the confusion is coming from. Looking at Mid-America's list, 87+ Vettes (which you ALL have) use two identical relays. However, 86 Vettes (and 86 ONLY) use two different ones. And of course the one I need is out of stock...

Thanks.
[RICHR]
 
T

tdr1919

Guest
Yep, my 86 has em' right behind the battery, it is best to change both
at the same time, for $14 bucks each it is'nt very much.
Tom R
 
T

tonylong

Guest
(to r rubel)
This is just the Genersl's way of keeping life interesting while playing with our Vette's. No matter what your type of enjoyment, Vette's ain't ever boring.
 
Joined
Jan 15, 2004
Messages
2,240
Location
Northern Indiana
Corvette
1987 Z52 Black Convertible
Ah hah... now I see where the confusion is coming from. Looking at Mid-America's list, 87+ Vettes (which you ALL have) use two identical relays. However, 86 Vettes (and 86 ONLY) use two different ones. And of course the one I need is out of stock...

Thanks.
[RICHR]


Did you ever order or find those relays, and install them?
 
Joined
Oct 30, 2001
Messages
2,273
Location
Glen Burnie, MD, USA
Corvette
1986 Bright Red Coupe
I bought one from AutoZone and haven't had a chance to look at/for the other yet. Been dealing with some issues on our daily-driver cars for now.
[RICHR]
 

jfcupolo

Member
Joined
Sep 2, 2004
Messages
10
Location
Pinellas Park, Florida 33782
Corvette
1994 Dark Red Coupe - Automatic
T

tdr1919

Guest
I may be off base here but I feel your pain in a very personal way. Take a look at this post to explain.

http://corvetteactioncenter.com/forums/showthread.php?t=88503

BTW, the relays on your are located between the battery box and the wheel well. I made the same mistake when I replaced mine.

The demons of bad solder and corroded connectors are truly the #1 source of problems with our older C4's,
Oh, you might want to look to Digikey for your relay connectors you can find them online.
I have resoldered my Dash display which I might add has contaminated solder thoughout the main board, typical of early commercial "flow solder" PC boards.
Also the connectors, I must check my relay connectors also.
good post.
Tom
 

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