1986 GT Codes

gmartian

New Member
Dec 7, 2020
11
0
1
19
Seekonk
I pulled codes today with a new computer in my 86' and got the following, 43, 63, 81, 82. I understand the 43 "Lean at WOT" as I just dropped the whole exhaust off including the 02 sensors as I thought the cats were clogged. I'm confused on how I should go about correcting codes 63, 81 and 82.
 
  • Sponsors(?)


Mustang5L5

Put lubricant all over the balls
Mod Dude
Feb 18, 2001
38,376
14,293
224
Massachusetts
OCode 63 is TPS voltage too low. You’ll want to check voltage at idle. Needs to be between 0.5-1.25v. To trigger the code means you are below 0.5v. This code can be an old stored cold, so you might want to delete codes, then rerun them after a few drive cycles

code 81 and 82 pertain to the solenoid for the air injection system. I assume those are deleted. You can ignore these without issue.
 

gmartian

New Member
Dec 7, 2020
11
0
1
19
Seekonk
OCode 63 is TPS voltage too low. You’ll want to check voltage at idle. Needs to be between 0.5-1.25v. To trigger the code means you are below 0.5v. This code can be an old stored cold, so you might want to delete codes, then rerun them after a few drive cycles

code 81 and 82 pertain to the solenoid for the air injection system. I assume those are deleted. You can ignore these without issue.
How can I check the voltage? Or with what kind of tool can I do such?
 

Mustang5L5

Put lubricant all over the balls
Mod Dude
Feb 18, 2001
38,376
14,293
224
Massachusetts
You’ll need a digital multimeter. Plenty of affordable ones on Amazon or Harbor frieght.

I would erase the codes and retest. Could be an old code