TPS problem

marc · 04-16-2008, 04:11 AM

well my TPS has never been right since i put my supra back together. No matter where i put the sensor i can never get idle right, even when adjusting the idle screw. And also it feels like its cutting at like 4000 rpm. The car will keep reving up and the boost will peg out, but the speed will drop as if the fuel is being cut. I ran codes and got a TPS trouble code

ddmcse · 04-16-2008, 10:32 AM

did you screw up one of the four wires connecting the tps ?

i'd get the screw back to were it belongs and then work on the timing .
i think it's an art to get that sucker in there just right

marc · 04-18-2008, 12:23 AM

i dont know where the tps screw originally was. and there only 1 wire connecting the tps

btwilson86 · 04-18-2008, 04:36 AM

Your TPS should have 1 connector with 4 wires coming from it... If not, then that would be the first clue as to why you have the Tps code.

marc · 04-30-2008, 03:07 AM

nah it has to do with where the TPS is situated. how od i properly set the tps?

cre · 04-30-2008, 03:19 AM

TPS testing info: MK3 TSRM On-Line

The alignment info is two pages later, test it first the TPS is a wear component.

Why do people have to keep screwing with the "idle screw"? It's a modern car! The idle is computer controlled! So unless you've already moved it, odds are it's right where it needs to be... which in this case, yes, I know, you've moved it.

supramacist · 04-30-2008, 03:42 AM

Dude...., I never moved mine. Never touched a wrench or driver too it.

So it's possible these things should start being sinched up a bit before destall. They almost have to be moving when someone is working deep top side.

marc · 05-10-2008, 09:10 PM

ok well what the manual fails to show is how the tps shuld be put on. should it go on, so that when i turn it, the throttle gives no resistance? or should it be if i turn the tps the throttle opens a little bit? a fast replay would be appreciated seeing as i have the TB in my hand and i need this thing together lol

supramacist · 05-10-2008, 10:13 PM

The tps can really only go on my 91, One way.
Put the throttle body on and the rest should be easy to figure out if you take your time and look at it for a bit.

My general rule of thumb: Think 5 times. Wrench once.
Does this always work you ask??? It helps alot.

Do you need a vac. hose diagram?

Vacuum Piping

All the answers you need are inside the tsrm that CRE gave you, a few posts back.

Save it to favorites and dig deeper.

04-16-2008, 04:11 AM	#1
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	TPS problem well my TPS has never been right since i put my supra back together. No matter where i put the sensor i can never get idle right, even when adjusting the idle screw. And also it feels like its cutting at like 4000 rpm. The car will keep reving up and the boost will peg out, but the speed will drop as if the fuel is being cut. I ran codes and got a TPS trouble code __________________ nothing but the best -mods- so far K&N intake fipk 3" megan downpipe 3"turbo elbow 4 washers on the wastegate highflow cat short shifter 89+ front bumper, pic soon to come many more upgrades soon

04-16-2008, 10:32 AM	#2
ddmcse 500whp yet? Join Date: Jun 2005 Location: CT U.S.A. Posts: 966	did you screw up one of the four wires connecting the tps ? i'd get the screw back to were it belongs and then work on the timing . i think it's an art to get that sucker in there just right __________________ 300+ RW HP Dyno run, jdm,mod turbo,3"exh,electfan,greddyboost Blown HeadGasket info My Supra KiXGaS Last edited by ddmcse; 04-19-2008 at 11:24 AM. Reason: missing an "e"

04-18-2008, 12:23 AM	#3
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	i dont know where the tps screw originally was. and there only 1 wire connecting the tps __________________ nothing but the best -mods- so far K&N intake fipk 3" megan downpipe 3"turbo elbow 4 washers on the wastegate highflow cat short shifter 89+ front bumper, pic soon to come many more upgrades soon

04-18-2008, 04:36 AM	#4
btwilson86 Super Moderator Join Date: May 2007 Location: Billings, Montana Posts: 1,034	Your TPS should have 1 connector with 4 wires coming from it... If not, then that would be the first clue as to why you have the Tps code. __________________ 1989 7MGTE R154 Targa Top White Package w/Blue Interior Driftmotion 57trim CT26, Upgraded Intercooler, 2.25" Hard Pipes, 3" Turbo Back Exhaust with Test Pipe, HKS VPC w/GM 3 bar MAP sensor, APEXi S-AFC, Walbro 255lph fuel pump, ProSport EVO Series Boost / Fuel Pressure / AFR gauges, Lotek a Pillar Gauge Pod, HKS Type 0 Turbo Timer, Eibach Lowering Springs, Tokico Illumina II TEMS struts, custom powder coated Motegi Racing TrakLite wheels

04-30-2008, 03:07 AM	#5
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	nah it has to do with where the TPS is situated. how od i properly set the tps? __________________ nothing but the best -mods- so far K&N intake fipk 3" megan downpipe 3"turbo elbow 4 washers on the wastegate highflow cat short shifter 89+ front bumper, pic soon to come many more upgrades soon

04-30-2008, 03:19 AM	#6
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	TPS testing info: MK3 TSRM On-Line The alignment info is two pages later, test it first the TPS is a wear component. Why do people have to keep screwing with the "idle screw"? It's a modern car! The idle is computer controlled! So unless you've already moved it, odds are it's right where it needs to be... which in this case, yes, I know, you've moved it.

04-30-2008, 03:42 AM	#7
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Dude...., I never moved mine. Never touched a wrench or driver too it. So it's possible these things should start being sinched up a bit before destall. They almost have to be moving when someone is working deep top side.

05-10-2008, 09:10 PM	#8
marc 12psi boost Join Date: Jun 2006 Location: salem mass Posts: 329	ok well what the manual fails to show is how the tps shuld be put on. should it go on, so that when i turn it, the throttle gives no resistance? or should it be if i turn the tps the throttle opens a little bit? a fast replay would be appreciated seeing as i have the TB in my hand and i need this thing together lol __________________ nothing but the best -mods- so far K&N intake fipk 3" megan downpipe 3"turbo elbow 4 washers on the wastegate highflow cat short shifter 89+ front bumper, pic soon to come many more upgrades soon

05-10-2008, 10:13 PM	#9
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	The tps can really only go on my 91, One way. Put the throttle body on and the rest should be easy to figure out if you take your time and look at it for a bit. My general rule of thumb: Think 5 times. Wrench once. Does this always work you ask??? It helps alot. Do you need a vac. hose diagram? Vacuum Piping All the answers you need are inside the tsrm that CRE gave you, a few posts back. Save it to favorites and dig deeper.

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