DESPERADO

87 vette

Where EXACTLY is the burn-off relay for the MAF? And what does it look like? (A picture says a thousand words)

I know it's somewhere near the ECM. I was hoping to remove it while I wait for the new one to arrive.

SunCr

Rectangular, about 1 X 3, above the terminal block behind the battery. There are two, the other is the MAF Relay.

DESPERADO

I believe that would be correct for '89 and later models, I have an 87.

scorp508

He is correct, they are located there on my '87 also. Take off the gill panel to get to the battery and they are to the right of it (staring straight at the battery) mounted to the firewall with 2 nuts each.

DESPERADO

My Hayes manual says it's behind ECM under the right dash. :confused:

I guess they could be wrong.

scorp508

The only year it was under the dash was 85. :)

js0308

I also have an 87 and I just replaced both relays last week. They are mounted on the firewall right behind the battery on my 87. They should be in plain site when looking at the battery. :auto:

DESPERADO

so that I get the right parts from GM... are they both called MAF burn-off relays?

SunCr

It doesn't matter, they're the same part.

DESPERADO

great thanks for the help. Both should always be replaced before buying a new MAF -- right?

js0308

I would definetly try replacing the relays before buying a new MAF. I believe I paid around $16 for both relays from AutoZone, If you want GM parts I am sure you will pay more. But my ones from autozone work just fine. You might want to try pulling the relays and checking the continuity across the contacts before buying new ones. There should be a diagram on the side of the relay with the schematic and terminal #s. :seeya

scorp508

Yep 87 uses the same part # for both relays. That is not the case with OTHER years, but 87 does. :)

DESPERADO

Well I now have the new burn-off relays installed, but still have a miserable engine. So my buddy's going to bring the MAF sensor from his 86 for me to try before buying a new (rebuilt) one.

boxerlover79

let us know who you decide to go with for the MAF. I here the wells brand from autozone is good

DESPERADO

I don't believe Autozone is in Canada.

I found GM wanted $722 CDN (522 USD), I got a buddy who works for Lordco Auto Parts in Vancouver BC. He said he can get the exact same one that GM sells for $440 CDN (318 USD) - same price as MidAmerica.

I can get a Neihoff rebuilt one for $187 CDN (135 USD) from Bumper to Bumper. It comes with a 1 year warranty. I think I'll buy this one.

I tried to find a high flow model but had no luck.