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#TPS resistance readings - is this bad?

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 Post subject: TPS resistance readings - is this bad?
PostPosted: Sat Mar 13, 2010 6:10 pm 
Second Gear
Joined: Wed Aug 22, 2007 9:27 pm
Posts: 506
Location: Denver, CO
I checked the Ohms on my TPS vs FSM and they are as follows:

No2-No3 - FSM 12 kOhms, TPS reading 9 kOhms
No2-No4 - closed - FSM 10-12 kOhms, TPS reading 8.56 kOhms
No2-No4 - open - FSM 3-5 kOhms, TPS reading 1.82 kOhms

What kind of issues would this cause. I've been having idle issues and stalling / no start issues.

Do I just adjust it, or replace it?

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maciek puszynski

91 Legacy Turbo | SS | 5mt
98 Legacy 2.5 | wagon | 5mt


2.35L Turbo Legacy Build


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 Post subject: Re: TPS resistance readings - is this bad?
PostPosted: Sun Mar 14, 2010 10:52 pm 
Site Admin
Site Admin
Joined: Tue Oct 15, 2002 11:37 am
Posts: 22875
Location: Houston, Tx
Those are close to the readings. The only thing you can or should adjust the TPS to is the idle closed switch.

http://www.main.experiencetherave.com/s ... sting3.jpg

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Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 5MT, & EJ22T Swap)
1997 Impreza OBS

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 Post subject: Re: TPS resistance readings - is this bad?
PostPosted: Sat Mar 20, 2010 4:39 am 
Second Gear
Joined: Wed Aug 22, 2007 9:27 pm
Posts: 506
Location: Denver, CO
Thanks for the tip....I checked it and it was within specs. I also doublechecked other TPS sensors on extra Tleg manifolds I had lying around, and they both were close to my original readings.

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maciek puszynski

91 Legacy Turbo | SS | 5mt
98 Legacy 2.5 | wagon | 5mt


2.35L Turbo Legacy Build


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 Post subject: Re: TPS resistance readings - is this bad?
PostPosted: Sat Mar 20, 2010 4:46 am 
Second Gear
Joined: Sat Aug 07, 2004 9:29 am
Posts: 344
Location: Jackson County OR
While your at it maybe you could get a resistance reading from the IAC for me, THANKS.

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Robert,

Rio Red 1990 L sedan 5MT at least 302000 mi. and Spruce Pearl 1996 Wagon 4EAT 245000 mi.

georryan wrote:
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 Post subject: Re: TPS resistance readings - is this bad?
PostPosted: Mon Jul 26, 2010 11:30 pm 
Third Gear
Joined: Wed Apr 16, 2008 6:05 pm
Posts: 638
Location: Montreal Quebec
Legacy777 wrote:
Those are close to the readings. The only thing you can or should adjust the TPS to is the idle closed switch.

http://www.main.experiencetherave.com/s ... sting3.jpg




josh i try to do this but seriously is this possible without removing the throttlebody

there is no room to insert gauge and keep it straight,


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 Post subject: Re: TPS resistance readings - is this bad?
PostPosted: Tue Jul 27, 2010 3:13 pm 
Fourth Gear
Joined: Tue Sep 12, 2006 6:49 am
Posts: 1636
Location: Seattle, WA
What type of gauge do you have? I was able to get it inserted to do the measurements

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'11 WRX Limited
'94 SS | 3" TBE, 07 TMIC, TD05H-16G, Revtronix Stage 2, Walbro -- Sold
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 Post subject: Re: TPS resistance readings - is this bad?
PostPosted: Tue Jul 27, 2010 5:04 pm 
Third Gear
Joined: Wed Apr 16, 2008 6:05 pm
Posts: 638
Location: Montreal Quebec
how did you hold it? ill get a picture of me trying to place the gauge you will see what i am trying to say.
its like impossible lol


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 Post subject: Re: TPS resistance readings - is this bad?
PostPosted: Thu Jul 29, 2010 5:11 pm 
Second Gear
Joined: Wed Aug 22, 2007 9:27 pm
Posts: 506
Location: Denver, CO
The gauge should stay by itself with the force of the TB plate springing back shut. You need to use the tiny feeler gauges.

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maciek puszynski

91 Legacy Turbo | SS | 5mt
98 Legacy 2.5 | wagon | 5mt


2.35L Turbo Legacy Build


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