TPS questions

AyeJaye · #1 02-13-2009, 10:52 PM

I read in another thread that a bad or maladjusted TPS can cause hard shifts. I've read over the how-to docs on adjusting and testing the TPS, and maybe its me but they're really not very easy to understand. I think I can figure out how to set it, but as far as testing it that one might be over my head a little bit. Is there any other way to test the TPS? And if it comes down to it, does anyone here know where I can find a replacement for slightly less than the $280-$300 average price I've been finding? What are the chances that I could find a functioning one on a junked or parted-out car?

jcimos · #2 02-14-2009, 12:31 AM

Dude I'm having issues with my baby's TTPS also. trying to find one in a junk yard is difficult. Everytime i went to a junk yard the car had been crushed. So prepare yourself for the quest for the fo the holy TPS.

Jcimos

svxfiles · #3 02-14-2009, 03:14 AM

www.subaruparts.com
Part #22633AA080 Throttle Sensor Ay $268.63 List.
Their price $204.70 plus $24.56 shipping.

www.1stsubaruparts.com,
$200.18, plus 12% shipping.

dcarrb · #4 02-14-2009, 07:38 AM

I paid something in the neighborhood of $185, with no added shipping charge, from either AutoZone's or Advance Auto Parts' Web site (I'm old and get the two confused). The part was identical to the one I took off the car, which I assumed to be original, down to the serial number molded into the plastic. This was awhile back and I wouldn't be surprised if the price has risen a bit.

dcb

1986nate · #5 02-14-2009, 08:24 AM

Quote:

Originally Posted by dcarrb

I paid something in the neighborhood of $185, with no added shipping charge, from either AutoZone's or Advance Auto Parts' Web site (I'm old and get the two confused). The part was identical to the one I took off the car, which I assumed to be original, down to the serial number molded into the plastic. This was awhile back and I wouldn't be surprised if the price has risen a bit.

dcb

Its $170 off of autozone's site

http://www.autozone.com/selectedZip,.../selectZip.htm

svxfiles · #6 02-14-2009, 11:35 AM

At Advance it's $283.99, $289.99, and $278.99.

jcimos · #7 02-14-2009, 08:36 PM

The TPS is adjustible ....... right? You just don't put it without adjusting it.

Jcimos

redlightningsvx · #8 02-14-2009, 08:59 PM

Yes it's adjustable, with the use of a volt meter.

AyeJaye · #9 02-15-2009, 12:19 PM

Do you adjust it with the ignition on or the motor running? Just a little unclear on that.

michael · #10 02-15-2009, 04:08 PM

I thought I was the only one! I just got a new multimeter and this will be the first thing I use it for.

svxfiles · #11 02-15-2009, 04:13 PM

Quote:

Originally Posted by AyeJaye

Do you adjust it with the ignition on or the motor running? Just a little unclear on that.

Either, or both.
It's easier to adjust it with the key on and engine off, but I always double check it with the engine running.
I always set it to 0.48volts.
According to LAN that gives the best idle.

dcarrb · #12 02-16-2009, 05:43 AM

Quote:

Originally Posted by 1986nate

Its $170 off of autozone's site

http://www.autozone.com/selectedZip,.../selectZip.htm

Yeah, I dug out the receipt: Purchased 9/14/07, price $169.99, sales tax $11.90, shipping to my home $0. Warranted 12 months. As I recall it arrived in 2 or 3 days.

Quote:

Originally Posted by Jcimos

The TPS is adjustible ....... right? You just don't put it without adjusting it.

It is adjustable. I didn't do anything but hook it up and go.

dcb

K_Dub · #13 02-16-2009, 04:03 PM

I payed $193 for mine about 4 months ago. I solved all kinds of problems for me including hard shifts, gear hunting at cruzing speed, and AWD issues as well. Check out my thread http://www.subaru-svx.net/forum/showthread.php?t=45940

The best way I found to test it's funcionality is to take it out (easy, just don't drop the screws under the manifold) and hook it up to the multimeter. Sweep it through the range and if the numbers are jumping all over (especially at the bottom end, low throttle) then it needs a replacement. If the numbers climb smooth than it just needs to be adjusted while installed on the car. The big board with the numbers marked in the How-To is a definitive test, but you'll be able to see the values jump without going to all that trouble if it is indeed needing replacement. Mine was very obvious once I had it out. Hope this turns out to be the "fix-all" that it was for mine.

AyeJaye · #14 02-16-2009, 09:55 PM

Horray for brainfarts!

dcarrb · #15 02-17-2009, 05:48 AM

Quote:

Originally Posted by K_Dub

I solved all kinds of problems for me including hard shifts, gear hunting at cruzing speed, and AWD issues as well.

Same here. Instantly and completely changed the character of the car for the better.

dcb