installing and calibrating a new-to-me TPS

[daeron]

okay so i got the tps, ive got it bolted into the car.. before i get the whole compressor and alternator assembly back together, im trying to get it "close" to positioned right.. and where it stands now, on my el cheapo multimeter (dads got my craftsman and cant find it, had to buy something..) i get 0.50 on the 20K range.... at zero throttle, from B to C... and i get straight continuity from B to A. i have it set to lose continuity (a> after a brief increase in resistance with just a *tiny* bit of throttle.. and at that point, the range of resistance on the B>C circuit is from about 0.5 to 4.5, on 20K ohms. thats right, right?

 

im putting the car back together as is, but confirmation would be appreciated in case im cursing the thing for not starting in 30-60 minutes...... and i am leaving the screws loose so i can tweak the adjustment.. then tighten the screws after full assembly. (and i DO have an 8 inch phillips to do that.)

 

did i miss anything? please read and respond, even if its no more than a "yah youre cool"

[daeron]

bump

 

I really need some help here, daylights fading and i had other things i had to get taken care of..

 

OK, no BIG problems, just that i assembled everything, (inadvertently forgot to plug in the TPS-duh) cranked it right up, it started right up.. threw a CEL immediately (duh, unhooked TPS) but it went away after i plugged it in. It doesnt seem to do anything. i mean, it ran just like it ran without it plugged in. i stopped the engine, and cranked it again.. started moving the thing thru its adjustment range.. and when i move from one extreme to the other, quickly, it kinda slows down a bit.. for a moment.. but the only tach reading i have gotten (working alone) was like 1100-1200 (i have the digidash so its teh sux0r as far as an ACTUAL reading.. i get it in increments of 125 rpm )

 

moving the bloody thing around should kill the engine, shouldnt it???

 

what am i missing here? where do i bolt it down?

[idosubaru]

in my experience rotating it around should shut the engine off or make it stumble really bad. did you get the engine up to operating temperature? the idle valve may be open all the way and affecting things if the engine isn't up to temp yet.

you can't really screw anything up engine wise playhing with the TPS adjustment, so don't be too worried about trying it out once it's all together.

 

you're the man!

[daeron]

oh god i skipped over the second post i had made and started whining in my first post. uhm, okay, full operating temp.. im also replacing tie rod ends so now im going out and driving around a little at a time checking alignment.. so im gradually seeing some issues...

 

thanks for the heating up point, it was cool.. ill get er good and warm before i post again.

 

 

EDIT

(BTW, while im from the south, for the love of mike dont think im some sort of redneck from my use of a phrase like "get er good and hot.." im a proud born southerner, but thats just because i think weve got about the most beautiful spot in the world... not because im some backwards rebel flag wavin hillbilly...i actually have a bumper sticker that has the confederate battle flag on it, crossed out, and it says YOU LOST, GET OVER IT!!)

[idosubaru]

i actually have a bumper sticker that has the confederate battle flag on it, crossed out, and it says YOU LOST, GET OVER IT!!

the meaning of that flag may represent a war to you, but not to those that show it. the south is fantastic. georgia is my vote for best state in the country overall. i'd move there tomorrow if it weren't for family. i don't mind rednecks, while there are some real hee-haws out there, they still beat the ghetto hands down. at least they'll usually only shoot you if they're pissed at you or drunk. in the ghetto it's just a roll of the dice....

[hooziewhatsit]

In this thread is a PDF to the guide that shows how to test the resistances in it, as well as where to make the switch in it open compared to throttle position.

http://www.ultimatesubaru.org/forum/showthread.php?t=24997&highlight=throttle+position +sensor

[daeron]

the meaning of that flag may represent a war to you, but not to those that show it. the south is fantastic. georgia is my vote for best state in the country overall. i'd move there tomorrow if it weren't for family. i don't mind rednecks, while there are some real hee-haws out there, they still beat the ghetto hands down. at least they'll usually only shoot you if they're pissed at you or drunk. in the ghetto it's just a roll of the dice....

 

 

hey brother, born and raised.. and south florida isnt REALLY "the south" but it sure isnt part of any place else.. i spent ten years of my early childhood in rural NC too, so i know what its like.

 

Im just sayin, sometimes i talk a little funny, start talkin bout rotatin muh tars, and changin muh oll, but i aint no jim-bawb!!

 

and what the confederate battle flag means, to me, is a group of people who are clinging to an obsolete section of history as a badge of honor.. more than anything else.

 

Plus, you gotta understand that there anret any real 'necks down here. they are all urban cowboy schmucks who drive their big pretty new King Ranch F-150s thru the mud every weekend drunk as skunks and since they live on an acre of land ("ranch" in florida) they think they really are the good ol boys. REAL rednecks wouldnt behave the way south florida rednecks do any day of the week... real rednecks'll stop when your on the side of the road and take you to go get gas. I had to wait for a cop to break the rules and let me ride in the back to the gas station.

 

so anyhow gary, i didnt mean any offense. i was just throwing a disclaimer in there, because _I_ ... AINT.. no redneck.... i jes talk funny sometimes.

 

EDIT

 

oh, and btw.. i never have had the stones to actually put the bumper sticker on my car. last thing i wanna do is somehow wind up with a bumper sticker like that out at my buddy chris's house, or on a road trip up to atlanta (petit le mans, anyone?) and then a minor detour to say, stone mountain.... sure, its a remote scenario.. but in my mind, that bumper sticker would be a no go thru the state of georgia... and its hard to get out of florida without entering georgia :- /

[daeron]

In this thread is a PDF to the guide that shows how to test the resistances in it, as well as where to make the switch in it open compared to throttle position.

http://www.ultimatesubaru.org/forum/showthread.php?t=24997&highlight=throttle+position +sensor

 

thank you, i was too wrapped up to do a search and i couldnt hit the right search string last night while i was doing the skull sessions.... i DID search, but the forum has been behaving kweerly on my browser lately and it was lagging real bad last night... so my search was not slow, or fast, but half-fast.

 

the partial FSM i have doesnt go into that much detail either. that PDF should get linked into the USRM. its just one page, right? there is NOTHING in there about the TPS and that was disheartening...

 

but now i know its an easy calibrate some day up at the shop, where theres a fluke multimeter, AND feeler gauges!!

 

BTW ive got it running OK now, my big nystery was "why isnt this DOING anything when i spin it around?" and the answer was that i didnt wait till operating temp achieved.

 

Heh, i didnt ever expect to need it for tuning the fuel injection, but i had to get an old carburetor tool out and use it.. it was called my Ears, im not used to using them for fixing/calibrating FI.....