Is MAF burnoff module attached to ECM?
Thread Starter
Racer
Joined: Jul 2006
Posts: 319
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Is MAF burnoff module attached to ECM?
Saw this pic on eBay and wondered if the MAF burnoff is supposed to be attached to the ECM (assuming the smaller box is the MAF burnoff module...)? I have an 85 and the burnoff module is NOT attached to the ECM on mine. If something is supposed to be attached to the ECM, that could explain a few things.. Anyone care to comment?
http://cgi.ebay.com/ebaymotors/ws/eB...ayphotohosting
http://cgi.ebay.com/ebaymotors/ws/eB...ayphotohosting
Last edited by davemack; May 13, 2007 at 10:56 PM.
Burning Brakes
Joined: Apr 2004
Posts: 762
Likes: 2
From: Huntington ma
No, it's not actually Attached to the ecm, it Is, however, mounted right next to it. The cable in the pic is the actual one that connects the module to the ecm harness. The pic does show you what the module looks like 
If (on your '85) the module wasn't there you would know it. Unless someone has modified the car to use the ECM from an '86-'89 and thereby eliminated the MAF module...
If (on your '85) the module wasn't there you would know it. Unless someone has modified the car to use the ECM from an '86-'89 and thereby eliminated the MAF module...
Thread Starter
Racer
Joined: Jul 2006
Posts: 319
Likes: 0
No, it's not actually Attached to the ecm, it Is, however, mounted right next to it. The cable in the pic is the actual one that connects the module to the ecm harness. The pic does show you what the module looks like
If (on your '85) the module wasn't there you would know it. Unless someone has modified the car to use the ECM from an '86-'89 and thereby eliminated the MAF module...
If (on your '85) the module wasn't there you would know it. Unless someone has modified the car to use the ECM from an '86-'89 and thereby eliminated the MAF module...
Would it throw a code, or just run rough? I honestly don't recall seeing the burnoff module, but I looked over a yr ago and wasn't looking for it.
Instructor
Joined: Jun 2006
Posts: 131
Likes: 0
From: Rockford IL
I don't remember my 85 ECM having that attached.
If your burn-oof Module is not working it will throw a code... Do you have a Factory shop manual?
I NEVER plan on owning an 85 again if your interested in it...
Too much of a one off vehicle as you probably know.
Just curious what kind of problems are having with yours?
If your burn-oof Module is not working it will throw a code... Do you have a Factory shop manual?
I NEVER plan on owning an 85 again if your interested in it...
Too much of a one off vehicle as you probably know.
Just curious what kind of problems are having with yours?
Thread Starter
Racer
Joined: Jul 2006
Posts: 319
Likes: 0
I don't remember my 85 ECM having that attached.
If your burn-oof Module is not working it will throw a code... Do you have a Factory shop manual?
I NEVER plan on owning an 85 again if your interested in it...
Too much of a one off vehicle as you probably know.
Just curious what kind of problems are having with yours?
If your burn-oof Module is not working it will throw a code... Do you have a Factory shop manual?
I NEVER plan on owning an 85 again if your interested in it...
Too much of a one off vehicle as you probably know.
Just curious what kind of problems are having with yours?
Racer
Joined: Jan 2006
Posts: 473
Likes: 7
From: Houston Texas
I'm not sure about the '85 but on my '88 there are two relays. A mass airflow power relay and a MAF burnoff relay both side by side mounted on the firewall near the battery. I do have to replace them every now and then for some reason!
Sorry I could not be of more help!
Sorry I could not be of more help!
Burning Brakes
Joined: Apr 2004
Posts: 762
Likes: 2
From: Huntington ma
The '85 MAF module (other years beginning in '86 don't use one, they have a pair of relays instead, and a different ECM along with some wire harness changes) is mounted above the ECM, actually behind the "bread basket" or crash pad in front of the passenger seat. Thats how you get to it - remove the crash pad. It is NOT accessible from below nor is it attached to the ECM itself.
If it wasn't there the MAF would have no power and would not be working - the SES light would be on, but the thing would probably Run - but not go into closed loop.
The MAF module can best be described as bullitproof - it's about as reliable as the Frame. They just don't go bad. Simpler and less trouble than the '86 and up twin relay deal.
If it wasn't there the MAF would have no power and would not be working - the SES light would be on, but the thing would probably Run - but not go into closed loop.
The MAF module can best be described as bullitproof - it's about as reliable as the Frame. They just don't go bad. Simpler and less trouble than the '86 and up twin relay deal.
