1985 Map Sensor Location
Thread Starter
4th Gear
Joined: Jun 2010
Posts: 4
Likes: 0
From: Safford Arizona
1985 Map Sensor Location
Was having rough idiling issues, so i took to mechanic. He said I need to replace the MAP sensor. Looked in manual and they say where MAP sensor is and how to replace. They say its on left rear corner of intake manifold, even showing small close up pic, making it look like it is easily accessible. But I cant find it.
Anyone shed light on this?
Anyone shed light on this?
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Find a new mechanic.
85 -89 TPI are MAF
It is if you have a 90-91 TPI which use MAP
85 -89 TPI are MAF
It is if you have a 90-91 TPI which use MAP
Last edited by rodj; Jun 16, 2010 at 07:01 PM.
Race Director
Joined: Jun 2009
Posts: 10,428
Likes: 9
From: Southside of Western Norte Americano State of Confusion, ColoFornia
St. Jude '13
nope.. the car doesnt have a manifold absolute presure sensor.. its a Mass air flow sensor. do your self a favor and go buy a can of sensor safe throttle body spray cleaner (like carb cleaner but for Fuelie cars)
Spray that inside the MAF (there will be a screen and two small wires, just spray them off) the MAF pops right out of the intake tube. If the car runs ok other than rough idle I would bet its dirty.. and a sa new MAF can go 300 bucks..
Spray that inside the MAF (there will be a screen and two small wires, just spray them off) the MAF pops right out of the intake tube. If the car runs ok other than rough idle I would bet its dirty.. and a sa new MAF can go 300 bucks..
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
To confirm the MAF is the problem, disconnect the wire harness from the MAF. If the idle improves, the problem is the MAF. If not, look elsewhere. Like someone else stated, spray the inside of the MAF with MAF cleaner. You can get it at any auto part store.
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Racer
Joined: Aug 2009
Posts: 289
Likes: 1
From: Tucson Arizona
Have you ever replaced the MAF relays? MAF relays can generate codes 33, 34, and 36. If the '85 is like an '86 they are located on a bracket behind the battery on the driver's side. One relay provides MAF power and the other controls the MAF burn-off (After the engine shuts down the burn-off circuit provides power to the MAF sensing wire to burn off contaminants). Cost is about $20.00 for new relays. Most folks consider relay replacement preventitive maintenance on these cars.
Steve
Steve
Team Owner
Joined: Jan 2003
Posts: 20,293
Likes: 240
From: Summerland B.C. Canada
Have you ever replaced the MAF relays? MAF relays can generate codes 33, 34, and 36. If the '85 is like an '86 they are located on a bracket behind the battery on the driver's side. One relay provides MAF power and the other controls the MAF burn-off (After the engine shuts down the burn-off circuit provides power to the MAF sensing wire to burn off contaminants). Cost is about $20.00 for new relays. Most folks consider relay replacement preventitive maintenance on these cars.
Steve
Steve
Glad I bought an 86
Burning Brakes
Joined: Apr 2004
Posts: 762
Likes: 2
From: Huntington ma
Is it still a weak link like the '86 relays?
They aren't that hard to Find, either - NAPA...
Racer
Joined: Sep 2001
Posts: 266
Likes: 7
From: Sumner WA
