Adjusting TPS
FTE Chapter Leader
Joined: Sep 2000
Posts: 3,862
Likes: 5
From: Beachville, Ontario
Adjusting TPS
I read somewhere yesterday that the TPS can be adjusted to optimize power for racing. Can someone fill me in on this procedure since the drag strip opens Friday night and I need to see what my winter beater can do.
Thanks, Chad
1979 F150 Custom: nothing under the hood at all (again)
1987 F150 XLT Lariat: 88 351W EFI
75 351W: soon to have 91 heads, ?? cam, double roller timing chain, Edelbrock Performer intake & Holley carb and be put back in 79 F150
84 351W: waiting for ???
Chevy 454: waiting for a truck (Mazda?Nissan?)
Thanks, Chad
1979 F150 Custom: nothing under the hood at all (again)
1987 F150 XLT Lariat: 88 351W EFI
75 351W: soon to have 91 heads, ?? cam, double roller timing chain, Edelbrock Performer intake & Holley carb and be put back in 79 F150
84 351W: waiting for ???
Chevy 454: waiting for a truck (Mazda?Nissan?)
Senior User
Joined: Apr 2001
Posts: 100
Likes: 0
From: Stafford USA
Adjusting TPS
This is the way I do it on my Mustang. Use a digital volt meter, ground the - lead of the meter, back-probe the green wire on the TPS with the + lead and check your reading. To adjust the TPS, loosen the two screws on the sensor and move the sensor to achive the best reading. You're looking for a reading of .998, the closer you can get it to 1 volt without going over, the better. You may need to open up the slots on the sensor some as well. If your wiring harness is color coded differently, the three wires should be tested with the + lead to fine the sensor output wire. One will be ground, one will have a reading of 5 volts and one will have a reading of less than 1 volt. That's the one your looking for. Do this with the key on, engine off and the throttle closed.
My, that was wordy wasn't it?
My, that was wordy wasn't it?
Postmaster
Joined: Jun 1999
Posts: 2,719
Likes: 1
From: Lee's Summit MO
Adjusting TPS
[font size="1" color="#FF0000"]LAST EDITED ON 24-Apr-01 AT 09:46 PM (EST)[/font][p]I did the same to my 93 302. It a good cheap mod. Only problem I found is that it made my E40d shift a bit harder. I don't have a clue why
Tuned
Joined: Nov 2000
Posts: 426
Likes: 1
From: houston, texas (now Berli
Adjusting TPS
What effect would that mod have on mileage?
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1988 F-150, V8, 5.0L (302ci), 5spd, SuperCab. Shorty headers, K&N filter, MSD 6a ignition, Accell 300 8.8mm race wires, Accell supercoil, Accell rotor+cap, Bosch +4 Platinum plugs, RanchHand bumper. Soon: Dual exhaust.
http://brembs.net/cars/FordPU.html
=========================
1988 F-150, V8, 5.0L (302ci), 5spd, SuperCab. Shorty headers, K&N filter, MSD 6a ignition, Accell 300 8.8mm race wires, Accell supercoil, Accell rotor+cap, Bosch +4 Platinum plugs, RanchHand bumper. Soon: Dual exhaust.
http://brembs.net/cars/FordPU.html
FTE Chapter Leader
Joined: Sep 2000
Posts: 3,862
Likes: 5
From: Beachville, Ontario
Adjusting TPS
Well, race night is getting bumped back a week so I can spend some time with my daughter but thanks for the help guys.
1979 F150 Custom: nothing under the hood at all (again)
1987 F150 XLT Lariat: 88 351W EFI
75 351W: soon to have 91 heads, ?? cam, double roller timing chain, Edelbrock Performer intake & Holley carb and be put back in 79 F150
84 351W: waiting for ???
Chevy 454: waiting for a truck (Mazda?Nissan?)
1979 F150 Custom: nothing under the hood at all (again)
1987 F150 XLT Lariat: 88 351W EFI
75 351W: soon to have 91 heads, ?? cam, double roller timing chain, Edelbrock Performer intake & Holley carb and be put back in 79 F150
84 351W: waiting for ???
Chevy 454: waiting for a truck (Mazda?Nissan?)
