Throttle Position Sensor - ZR-1 Net Registry Forums

GOFAST · 04-28-2012

I had to replace me throttle position sensor on my '95 but unsure how to adjust it. What is the appropriate procedure?

Thanks.

XfireZ51 · 04-28-2012

Quote:

Originally Posted by GOFAST

I had to replace me throttle position sensor on my '95 but unsure how to adjust it. What is the appropriate procedure?

Thanks.

You need to set the 0 position voltage at about .53-.55v. You do this with ignition ON but motor off. It's easier to do it w a scan tool connected. Can also use digital volt meter. Check your FSM.

VetteMed · 04-28-2012

Center wire on TPS, should be blue wire, is signal wire. Should have around 0.54 volts at idle, and 4.5 volts at WOT if I recall correctly.

To measure, you can flip back the cover that secures the wires into the connector, use a pick tool to pull the round rubber seal back, and then you'll be able to insert your red (positive) multimeter probe against the metal crimp on the blue wire.

Black probe (negative) of meter goes to any engine ground.

04-28-2012	#1
GOFAST Join Date: Dec 2011 Location: Minnesota Posts: 31	Throttle Position Sensor I had to replace me throttle position sensor on my '95 but unsure how to adjust it. What is the appropriate procedure? Thanks.

04-28-2012	#3
VetteMed Join Date: Mar 2009 Location: Orlando, FL Posts: 1,828	Re: Throttle Position Sensor Center wire on TPS, should be blue wire, is signal wire. Should have around 0.54 volts at idle, and 4.5 volts at WOT if I recall correctly. To measure, you can flip back the cover that secures the wires into the connector, use a pick tool to pull the round rubber seal back, and then you'll be able to insert your red (positive) multimeter probe against the metal crimp on the blue wire. Black probe (negative) of meter goes to any engine ground. __________________ 2004 Z06/Z16 LeMans Commemorative Edition 1991 ZR-1 #302 White/Gray (sold) 1991 ZR-1 #1147 Red/Saddle (sold)