Confused on TPI TPS voltage reading...
Thread Starter
Junior Member
Joined: Dec 2007
Posts: 68
Likes: 3
From: Okinawa Japan
Car: 91 TA GTA, 88 Camaro Covnvertible
Engine: TA 350 Supercharged, Camaro 350
Transmission: TA 700R-4, Camaro T5
Axle/Gears: 3.23 Posi in both cars
Confused on TPI TPS voltage reading...
Here is my delima. My book (Chilton's) says to measure between B and C (middle and bottom) wires. My other book (Haynes) says to measure between A and B. Using B and C, I get over 4 volts (middle and bottom). If I measure A and B (top and middle), then I get the correct voltage I am looking for at about 0.58 volts. I am also able to adjust it properly.
I have checked all over the net on reading the TPS voltage. Everyone seems to agree on 0.54 at idle. The problem I am having is WHERE to take the voltage from. Some people say take it from the top and middle wire. Other people say take it from the middle and bottom wire. Which book should I believe? Car is running and TPS seems to be working properly.
I have checked all over the net on reading the TPS voltage. Everyone seems to agree on 0.54 at idle. The problem I am having is WHERE to take the voltage from. Some people say take it from the top and middle wire. Other people say take it from the middle and bottom wire. Which book should I believe? Car is running and TPS seems to be working properly.
Joined: Mar 2007
Posts: 1,698
Likes: 3
From: NE Pennsylvania
Car: 85 Iroc-Z
Engine: 383 TPI Procharger D1SC
Transmission: TKO600
Axle/Gears: Strange S60 3.73
Re: Confused on TPI TPS voltage reading...
You should measure it from the top and bottom wires (A & B). It should be set at .54 - .60 volts.
Thread Starter
Junior Member
Joined: Dec 2007
Posts: 68
Likes: 3
From: Okinawa Japan
Car: 91 TA GTA, 88 Camaro Covnvertible
Engine: TA 350 Supercharged, Camaro 350
Transmission: TA 700R-4, Camaro T5
Axle/Gears: 3.23 Posi in both cars
Joined: Mar 2007
Posts: 1,698
Likes: 3
From: NE Pennsylvania
Car: 85 Iroc-Z
Engine: 383 TPI Procharger D1SC
Transmission: TKO600
Axle/Gears: Strange S60 3.73
Re: Confused on TPI TPS voltage reading...
Yeah, sorry about the typo. Top and Middle.
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