TPS Sesor Reading

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Sep 17, 2010 | 01:32 PM

mgilorma

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Member

Joined: Jun 2003

Posts: 319

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From: Lansdale Pa

Car: 90 RS

Engine: 305 TBI - LT1 Cam

Transmission: T56

Axle/Gears: Stock Crap

TPS Sesor Reading

I've been trying to work on my tune for a couple of weeks now and just noticed that my tps readings are never below 2, shouldn't it be around 0 when I'm idling?

I've attached my latest log in this post:

https://www.thirdgen.org/forums/post...451-post5.html

Sep 20, 2010 | 11:16 AM

Ronny

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Joined: Mar 2003

Posts: 6,880

Likes: 4

From: wisconsin

Re: TPS Sesor Reading

I would not be too concerned. I believe the ECU does compensate for that. Your logs show 2 but the ECU after seeing 2 on idle reads that as zero. I have moved my TPS (TSS) countless times, IAC changes, yet in log it is always zero for TPS.

Sep 20, 2010 | 12:23 PM

1991L98G92

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Joined: Jan 2006

Posts: 355

Likes: 2

From: Central California Coast SM

Car: 91 Z28 24th Anniversary

Engine: L98

Transmission: Auto

Axle/Gears: Posi 3.23

Re: TPS Sesor Reading

It should be showing a % of throttle on a scan tool. TPS should not be adjustable. Minimum Air Rate should be checked and set if needed. That woud be the idle TPS setting.

Sep 20, 2010 | 02:13 PM

spkx714

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Joined: Oct 2005

Posts: 92

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From: Lake Zurich, IL

Car: 1986 IROC Z

Engine: 383/D1SC

Transmission: TH 700R4 or TH 7004R

Axle/Gears: Moser 9" 370:1

Re: TPS Sesor Reading

In the setup section of my aftermarket BS3 directions it says that the TPS should be between .5 and 1%. I don't know anything about tuning, yet, but I did see that in the instructions and though I'd offer what I could.

Sorry if I don't know what I'm talking about.

Steve