Installing new TPS (Throttle Postion Sesnor) Help!

SilkkTheShocker · 07-21-2009, 09:47 PM

I just bought a new throttle position sensor and I am reading the BGB and I am confused... They mention in Step 2 to "Apply vacuum hose to throttle opener"
I see the little hoses on the throttle buy I have no clue what that step implies

Could someone help me out on installing this thing The multimeter job is also confusing

sorry I just never had to this before...

Pleeassee

grjr · 07-22-2009, 02:34 AM

you need to apply vacuum to the diaphragm on the throttle body with a vacuum pump so that it isn't opening the throttle any, then you'll be able to accurately set the TPS where it should be.

SilkkTheShocker · 07-25-2009, 04:57 PM

what if i don't have a vacuum pump?

SilkkTheShocker · 07-29-2009, 11:13 PM

help anyone?

nocashrider · 07-30-2009, 06:41 AM

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SilkkTheShocker · 08-04-2009, 06:05 PM

isnt there a vacuum system or something near the throttle body that you connect tubes to?

nocashrider · 08-05-2009, 11:01 AM

not sure what you mean on that one man. if you could explain more it might help

SilkkTheShocker · 08-05-2009, 04:01 PM

1991 MR2 BGB Online - Mechanical - EFI System

under throttle body for 5s-fe it says things about check vacuum for different ports and connect vacuum to throttle opener, I dont understand if I plug one if these tubes to the opener or have a seperate pump?

nocashrider · 08-05-2009, 06:22 PM

sorry about what i posted earlier i thought you were trying to measure the vacuum. now that i reread your post and got my BGB out and read the throttle body section i see what your talking about. they dont word it the best in the book but all you are doing is reconnecting the vacuum hose i marked yellow in the pic (excuse the dirty engine). the question i have for you is if your installing a new sensor why are you doing the steps you would do to test a tps?

SilkkTheShocker · 08-05-2009, 09:14 PM

Well i thought when installing a new tps you have to adjust and the steps say apply that vacuum and something about a feeler gauge and the ohmeter continuity

the bgb is pretty confusing it looks like an easy job

thanks for the pic too

nocashrider · 08-06-2009, 05:15 AM

you might be right, you could very well have to adjust it when you install a new on im not quite sure on that but you would definately need to go and get a feeler gauge set and ohmeter

1stgen · 08-08-2009, 11:02 PM

If it was me...I would disregard the vac pump and just look down manually close the butterfly with force. Then just hook up the multi meter check for 0 or whatever it tells you in the BGB at Closed. and 5V or whatever at full open you will have to adjust it otherwise your mixture will be off. Its pretty much slap it on check it at closed...check it at open..adjust for high voltage. Set butteryfly for low voltage.

SilkkTheShocker · 08-09-2009, 04:40 PM

butterfly?

1stgen · 08-09-2009, 06:17 PM

Pretty things with wings changes from a larvae out of a cacoon...also known as a throttle plate.

SilkkTheShocker · 08-10-2009, 08:20 PM

ok so how do close it by force and how do i set the butterfly for voltage...i know im ignorant so please

nocashrider · 08-11-2009, 04:43 AM

im pretty sure its got a step by step in the BGB and you just shut it manually by turning the wheel that the throttle cable connects too

SilkkTheShocker · 09-08-2009, 07:02 AM

hey when i adjust the tps at full throttle does the engine need to be running? wide open throttle that would be very loud ...

Redstar · 09-08-2009, 04:23 PM

I think you're making this more complicated than it really is.

The car has to be on, but not running. You can move the throttle plate by hand. You don't need a vacuum pump, take off the intake elbow at the manifold so you can see the inside of the throttle body and then physically push the throttle plate all the way closed, that's what 1stgen is talking about.

What year is your car? Is it a 3 or 4 wire TPS?

SilkkTheShocker · 09-21-2009, 07:18 AM

Quote:

Originally Posted by Redstar

I think you're making this more complicated than it really is.

The car has to be on, but not running. You can move the throttle plate by hand. You don't need a vacuum pump, take off the intake elbow at the manifold so you can see the inside of the throttle body and then physically push the throttle plate all the way closed, that's what 1stgen is talking about.

What year is your car? Is it a 3 or 4 wire TPS?

its a 3 wire tps.

07-21-2009, 09:47 PM	#1 (permalink)
SilkkTheShocker Mister 2 Join Date: Apr 2009 Location: Central Ohio Posts: 39 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Installing new TPS (Throttle Postion Sesnor) Help! I just bought a new throttle position sensor and I am reading the BGB and I am confused... They mention in Step 2 to "Apply vacuum hose to throttle opener" I see the little hoses on the throttle buy I have no clue what that step implies Could someone help me out on installing this thing The multimeter job is also confusing sorry I just never had to this before... Pleeassee

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07-22-2009, 02:34 AM	#2 (permalink)
grjr No Skills Join Date: Jul 2009 Location: Bakersfield CA Posts: 18 Thanks: 1 Thanked 1 Time in 1 Post iTrader Rating: (0/0% )	you need to apply vacuum to the diaphragm on the throttle body with a vacuum pump so that it isn't opening the throttle any, then you'll be able to accurately set the TPS where it should be.

07-25-2009, 04:57 PM	#3 (permalink)
SilkkTheShocker Mister 2 Join Date: Apr 2009 Location: Central Ohio Posts: 39 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	what if i don't have a vacuum pump?

07-29-2009, 11:13 PM	#4 (permalink)
SilkkTheShocker Mister 2 Join Date: Apr 2009 Location: Central Ohio Posts: 39 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	help anyone?

07-30-2009, 06:41 AM	#5 (permalink)
nocashrider Get your own tank Join Date: Feb 2008 Location: Puyallup Posts: 102 Thanks: 7 Thanked 6 Times in 6 Posts iTrader Rating: (0/0% )	- Harbor Freight Tools - Quality Tools at the Lowest Prices

08-04-2009, 06:05 PM	#6 (permalink)
SilkkTheShocker Mister 2 Join Date: Apr 2009 Location: Central Ohio Posts: 39 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	isnt there a vacuum system or something near the throttle body that you connect tubes to?

08-05-2009, 11:01 AM	#7 (permalink)
nocashrider Get your own tank Join Date: Feb 2008 Location: Puyallup Posts: 102 Thanks: 7 Thanked 6 Times in 6 Posts iTrader Rating: (0/0% )	not sure what you mean on that one man. if you could explain more it might help

08-05-2009, 04:01 PM	#8 (permalink)
SilkkTheShocker Mister 2 Join Date: Apr 2009 Location: Central Ohio Posts: 39 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	1991 MR2 BGB Online - Mechanical - EFI System under throttle body for 5s-fe it says things about check vacuum for different ports and connect vacuum to throttle opener, I dont understand if I plug one if these tubes to the opener or have a seperate pump?

08-05-2009, 06:22 PM	#9 (permalink)
nocashrider Get your own tank Join Date: Feb 2008 Location: Puyallup Posts: 102 Thanks: 7 Thanked 6 Times in 6 Posts iTrader Rating: (0/0% )	sorry about what i posted earlier i thought you were trying to measure the vacuum. now that i reread your post and got my BGB out and read the throttle body section i see what your talking about. they dont word it the best in the book but all you are doing is reconnecting the vacuum hose i marked yellow in the pic (excuse the dirty engine). the question i have for you is if your installing a new sensor why are you doing the steps you would do to test a tps?

08-05-2009, 09:14 PM	#10 (permalink)
SilkkTheShocker Mister 2 Join Date: Apr 2009 Location: Central Ohio Posts: 39 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	Well i thought when installing a new tps you have to adjust and the steps say apply that vacuum and something about a feeler gauge and the ohmeter continuity the bgb is pretty confusing it looks like an easy job thanks for the pic too

08-06-2009, 05:15 AM	#11 (permalink)
nocashrider Get your own tank Join Date: Feb 2008 Location: Puyallup Posts: 102 Thanks: 7 Thanked 6 Times in 6 Posts iTrader Rating: (0/0% )	you might be right, you could very well have to adjust it when you install a new on im not quite sure on that but you would definately need to go and get a feeler gauge set and ohmeter

08-08-2009, 11:02 PM	#12 (permalink)
1stgen Yup Join Date: Aug 2008 Location: Central Coast CA Posts: 383 Thanks: 11 Thanked 12 Times in 11 Posts My Google Map iTrader Rating: (1/100% )	If it was me...I would disregard the vac pump and just look down manually close the butterfly with force. Then just hook up the multi meter check for 0 or whatever it tells you in the BGB at Closed. and 5V or whatever at full open you will have to adjust it otherwise your mixture will be off. Its pretty much slap it on check it at closed...check it at open..adjust for high voltage. Set butteryfly for low voltage.

08-09-2009, 04:40 PM	#13 (permalink)
SilkkTheShocker Mister 2 Join Date: Apr 2009 Location: Central Ohio Posts: 39 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	butterfly?

08-09-2009, 06:17 PM	#14 (permalink)
1stgen Yup Join Date: Aug 2008 Location: Central Coast CA Posts: 383 Thanks: 11 Thanked 12 Times in 11 Posts My Google Map iTrader Rating: (1/100% )	Pretty things with wings changes from a larvae out of a cacoon...also known as a throttle plate.

08-10-2009, 08:20 PM	#15 (permalink)
SilkkTheShocker Mister 2 Join Date: Apr 2009 Location: Central Ohio Posts: 39 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	ok so how do close it by force and how do i set the butterfly for voltage...i know im ignorant so please

08-11-2009, 04:43 AM	#16 (permalink)
nocashrider Get your own tank Join Date: Feb 2008 Location: Puyallup Posts: 102 Thanks: 7 Thanked 6 Times in 6 Posts iTrader Rating: (0/0% )	im pretty sure its got a step by step in the BGB and you just shut it manually by turning the wheel that the throttle cable connects too

09-08-2009, 07:02 AM	#17 (permalink)
SilkkTheShocker Mister 2 Join Date: Apr 2009 Location: Central Ohio Posts: 39 Thanks: 0 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	hey when i adjust the tps at full throttle does the engine need to be running? wide open throttle that would be very loud ...

09-08-2009, 04:23 PM	#18 (permalink)
Redstar My other cars are jealous Join Date: Feb 2007 Location: Bellingham, WA Posts: 396 Thanks: 18 Thanked 38 Times in 27 Posts iTrader Rating: (10/100% )	I think you're making this more complicated than it really is. The car has to be on, but not running. You can move the throttle plate by hand. You don't need a vacuum pump, take off the intake elbow at the manifold so you can see the inside of the throttle body and then physically push the throttle plate all the way closed, that's what 1stgen is talking about. What year is your car? Is it a 3 or 4 wire TPS?