When setting the TPS, do I unplug the IAC?
Thread Starter
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
When setting the TPS, do I unplug the IAC?
I've done this all before, but don't recall.
The IAC valve must be closed when doing this, correct? and in order to do that I need to paperclip the ALDL and have the IAC unplugged and set at base idle, right?
The IAC valve must be closed when doing this, correct? and in order to do that I need to paperclip the ALDL and have the IAC unplugged and set at base idle, right?
Le Mans Master
Joined: Jan 2003
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From: Santa Maria CA
Re: When setting the TPS, do I unplug the IAC? (CentralCoaster)
Thread Starter
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Re: When setting the TPS, do I unplug the IAC? (86PACER)
I got it set right. youd think for how many times this subject has come up thered be an exact procedure.
I'll bring the torx wrenches and vom with me tommorrow in case i need to tweak it.
.61v at idle, 4.10v at WOT is what i have set.
it seems like my tps doesn't have as much range as it should. but WOT occurs at ~3.8v as I recall.
I'll bring the torx wrenches and vom with me tommorrow in case i need to tweak it.
.61v at idle, 4.10v at WOT is what i have set.
it seems like my tps doesn't have as much range as it should. but WOT occurs at ~3.8v as I recall.
Melting Slicks
Joined: Apr 2002
Posts: 2,118
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From: St. Charles, MO Route 66 Corvette Club
Re: When setting the TPS, do I unplug the IAC? (CentralCoaster)
To adjust the TPS (throttle position sensor), you do not need to disconnect the IAC (idle air control) valve. Mid Americaa Direct sells a wiring device that makes this real easy ($12). Set the voltage by turning on the ignition (but do not start the engine) loosing the two screws on the TPS, and move the sensor to obtain the desired voltage. My 89 is set ay .60 volts and I get 4.2 volts at WOT. Hope this is helpful.
SAM
SAM
Le Mans Master
Joined: Aug 2003
Posts: 9,884
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From: Magnolia Mississippi
St. Jude '03-'04-'05-'06-'07
Re: When setting the TPS, do I unplug the IAC? (Sam Lam)
To adjust the TPS (throttle position sensor), you do not need to disconnect the IAC (idle air control) valve. Mid Americaa Direct sells a wiring device that makes this real easy ($12). Set the voltage by turning on the ignition (but do not start the engine) loosing the two screws on the TPS, and move the sensor to obtain the desired voltage. My 89 is set ay .60 volts and I get 4.2 volts at WOT. Hope this is helpful.
SAM
SAM
