How To Test A Throttle Position Sensor (Andy’s Garage: Episode - 162)

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Andy Phillips shows how to test a throttle position sensor (TPS) using easy steps.
DISCLAIMER:
The individual featured on the Phillips Vision RU-vid Channel identified as Andrew Phillips, also known as Andy Phillips is not a professional mechanic, contractor or certified repairman. He does not have any formal training in the automotive field, or any other trade. He is strictly a Do It Yourself handyman.
Phillips Vision, or the individuals featured on this channel, assume no liability for anything you choose to do to your vehicles, appliances, games or any other items featured in the videos before, or after watching one of the videos or utilizing the content from this channel.
All Do it Yourself (DIY) repairs or modifications you perform are at your own risk. Proper safety precautions are always needed, and are the responsibility of the viewer to follow. In some cases, even if you perform everything properly, you can destroy or damage one or more things you are working on resulting is costly repairs.
In addition, if for some reason, the instructions on this channel are incorrect, resulting it something becoming damaged, Phillips Vision and those featured on this channel WILL NOT reimburse or pay in any way the costs that may be incurred due to following wrong instructions.
PLEASE DO NOT PERFORM ANYTHING SHOWN ON THIS CHANNEL (PHILLIPS VISION) UNLESS YOU FEEL COMFORTABLE AND CONFIDENT TO DO SO.

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26 июл 2024

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Комментарии : 73

@user-pd3sz2br1w 6 месяцев назад

thank you for the easy to understand video. Great job.

@jonesfred111121 2 года назад

Thank you for showing me how to use a multi meter correctly.

@ucnhtmenow1 7 месяцев назад

I know how to read one because I've been doing electrical for years, but many videos never tell the people who aren't experienced with them which setting to use which basically makes the "tutorial" useless. I'm sure it's very frustrating. He's one of the few that actually walked through the steps the correct way.

@MrBill2U Год назад

Thanks, I was going to just start feeding parts into my car. Nice tutorial thanks.

@glenburns4232 2 года назад

Cool man very helpful

@edwardzamorski3711 2 года назад

Thanks for this video

@yacinehammar1301 Год назад

Thank you for the video

@Tracks777 4 года назад

amazing stuff

@PhillipsVision 4 года назад

MisterTracks thx

@Joey-fq5rr 24 дня назад

Good video, hopefully my rough idle is because I have a bad TPS

@majordog85 5 месяцев назад

Got yourself a new subscriber thanks!

@PhillipsVision 5 месяцев назад

Thanks, I appreciate it

@Really658 11 месяцев назад

Nice!

@BOC4ALL 2 года назад

How would you adjust a T.P.S. with the slots. I have an 88 Sentra W/TBI. Tryin to figure out if it's that or the MAF.

@keithlong2788 10 месяцев назад

tested my chevy tps sensor on throttle body and get no readings AT ALL on the sensors however i do get a reading for the motor. I do not have any DTC's and the car is running but idle and acceleration are not great. How is the car still functioning if throttle body isn't working?

@wanifx7103 9 месяцев назад

On my 2000 Toyota Platz i saw the engine check light on when i was going up hill and it disappeared when i got on a falt road it also loss power sometimes i tried this but the Signal wire was showing me 2.57 and if i accelerate / the throttle body it drops to 0.56 is this a good reading or bad

@111roofer 25 дней назад

Hello. My signal wire reads 1.02v and when throttle is pressed 4.68v. The ranger is dying when I let off the throttle though

@PhillipsVision 24 дня назад

I would also check the throttle body intake. If you get carbon build up it can cause it to stall when not accelerating due to the air being obstructed coming in

@Matthew-ez6qg Год назад

When I unplug the tps sensor I have the same voltage as the reference wire which is reading high at 5.8 volts. What could cause this, computer?

@henrytran7760 11 месяцев назад

This tutorial wrk for both mechanical & electrical throttle sensor??

@PhillipsVision 11 месяцев назад

This is a mechanical tb, that’s why it has a separate throttle position sensor. Electric tb’s have everything contained in one unit.

@robertmudd1848 Год назад

Mine is only reaching 3.7V at wide open. Bad sensor?

@TM-fx5le 3 месяца назад

Is there any way to test the circuit itself?

@gail6904 Месяц назад

hello my signal only goes from 1.2 to 3.9 volts and rises and lowers but never above 3.9 volts when i manually moved throttle cable up and down but never got above 3.9 volts..is that OKAY? ALSO it wouldnt read continuity for ground UNLESS i turned KEY OFF...98 kia sportage

@JimBombo-oz3et 2 месяца назад

THANKS ANDY PHILLIPS

@gail6904 2 месяца назад

are u backprobing into TPS with it connected to harness? and key on still? At end video? when i first start my 98 kia sportage it revs way too high at 4,000 rpm, then if i DISCONNECT THE IAC vlave it goes right back to normal about *%) RPM ..does this mean MY IAC valve is ok?????

@PhillipsVision 2 месяца назад

Yes, backprobing with key on. Easy way to test your IAC valve is to remove it but leave harness attached. Start car and see if the plunger moves. Your issue may be the MAP sensor. I had a similar problem and it was the MAP sensor. Get a GM OBD1 scanner and see if you have any engine codes, that will point you in the right direction

@gail6904 2 месяца назад

@@PhillipsVision HI ANDY THANK U SO MUCH ESPECIALLY ON MEMORIAL DAY...MY IAC VAVLE DOESNT HAVE A PLUNGER JUST TWO FLAPS IN IT ITS A 98 KIA SPORTAGE

@en4cer450 4 года назад

My new TPS is reading .07V "closed" (red lead on glue wire, black to chasis ground). Would I need to do an adjustment to my TPS? And would it matter if the battery itself was like 1/2 of a volt low? Thank you.

@PhillipsVision 4 года назад

en4cer450 you should be between .2 - 1.5 at idle, but check specifics for your vehicle. As for your battery, what is the actual voltage on your voltage wire? Should be AROUND 5 volts.

@en4cer450 4 года назад

With red lead to grey wire and black lead to ground I get 4.8V... and red lead on blue wire I get 4.2V

@zahidrao985 2 года назад

Sir I have a Nissan moco; model; 2008 k6 engine i need tp sensor idle potion voltage

@bartfarris6543 Год назад

I have a 1999 Chrysler Sebring. While doing the signal test, when I opened the throttle I got a steady decrease in voltage instead of an increase all the way to fully open. Is this a bad sensor or another problem?

@lazyfred5759 Год назад

It could also be just the way it works, cause it's old, as long as it's consistent, but idk lolk, sowhat happened?

@bartfarris6543 Год назад

When I replaced the to sensor I didn't notice that I also had a fried wire going back to the computer po122 code. The car wouldn't start, so I replaced the sensor again and replaced the end of the wire with a already flared end from a junkyard......and that fixed the problem

@deanbrown2829 2 года назад

I have a 97 Saturn SL 2 having problems with my throttle position sensor and service engine soon light testing the pigtail I have between 4.98 and 5 V on the gray wire have no ohms on dark blue signal wire I just have a cheap scanner so I can’t see real time and I’m just at home shade tree mechanic any help would be greatly appreciated thanks Dean

@PhillipsVision 2 года назад

Signal wire should not have ohms. Power will shows voltage and ground will have ohms.

@deanbrown2829 2 года назад

@@PhillipsVision Will retest tomorrow I greatly appreciate your help thank you

@A_Stereotypical_Heretic Год назад

Ok so my signal wire is showing 4.5 volts at all times, even with throttle completely closed. Im getting a p0171 code and the severity of it is medium. (High current to TPS) i just changed the TPS, same thing. Soooo...also the vehicle is stalling at WOT, severely stalling, backfires, bucks and shuts down until it cools off. Where am i getting this extremely high voltage from?

@terrynarrainsamy976 Год назад

have you resolve the problem ...got same things as u

@A_Stereotypical_Heretic Год назад

@@terrynarrainsamy976 well my issue wasn't the TPS, tho it was bad. I just went and got another one. I believe I over tensioned the clock spring in it when I was trying to set it up and possibly broke the internals, or it was bad out of the box. My actual issue wound up being my fuel pump. Missing, stalling, then eventually dying at operating temp. Wouldn't crank back until it cooled down then the same all over again.

@LuisMartinez-nq6kp 3 года назад

Will this method work on an atv?

@PhillipsVision 3 года назад

It should

@jludtxs 3 года назад

If the plug readings are correct, does that mean the wiring is good? problem with the sensor? It's ok if the ground readings on the plug are bouncing around?

@PhillipsVision 3 года назад

Yes, if harness is giving a correct reading then the wiring is good

@JustmePeter12 3 года назад

What color on your tps is the signal wire

@PhillipsVision 3 года назад

Dark blue, the middle wire. Grey is voltage, black is ground and dark blue is signal.

@angelf9800 9 месяцев назад

Can a bad throttle body sensor cause shifting issues.

@sellomorapedi8590 6 месяцев назад

@angelf9800 100% sure

@vincentmeadows1 2 года назад

I have a 1984 Pontiac Fiero. I replaced the TPS and now it won't start, can someone please help me?

@illstudiocheapertricksandh6447 2 года назад

Same here. You fix it?

@vincentmeadows1 2 года назад

@@illstudiocheapertricksandh6447 inspect the center wire of the distributor cap from end to end. Mine was broken on the engine side. Good luck friend

@websurfer1585 3 года назад

If you don't get the correct base voltage at idle, does this mean you may need to adjust the idle stop screw to obtain correct throttle valve position?

@PhillipsVision 3 года назад

If your tps has an adjusting screw...yes you could try that.

@tonyfrommer7886 2 года назад

I have a 2008 crysler sebring the battery light comes on and the lights flicker what's wrong with it ?????

@PhillipsVision 2 года назад

Will the car start? Is this happening when driving?

@tonyfrommer7886 2 года назад

@@PhillipsVision yes after a few minutes of running it starts to do it The car runs fine

@PhillipsVision 2 года назад

@@tonyfrommer7886 sounds like the Alternator. Here’s a video I did I showing how to diagnose and fix the problem: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-APRoyxL89Mg.html

@tonyfrommer7886 2 года назад

@@PhillipsVision check everything l replaced alternater the battery cables still doing it

@PhillipsVision 2 года назад

@@tonyfrommer7886 its an electrical issue, you’ll need to test everything and trace the cause

@bartfarris6543 Год назад

I keep getting engine code po122

@Dezmon2jz Год назад

Low input code. I’d replace the TPS

@boostedmadness5487 2 года назад

I tried this and 2 of my 3 leads on the connector are a little over 5 volts. I figured maybe the connector was bad so I tried it on the map sensor and got the same result. Can’t be sure which one is the current in, signal wire, or the ground because I didn’t want to test the resistance on either lead with 5 volts. So I’m assuming both the current in, and the signal wire are both 5 volts in my situation. The oddball is probably the ground. Any idea why this might be happening?

@Kickbasser 2 года назад

Have exactly the same issue. Tried all 3 leads and 2 of them show volts 5.0 and 5.7. Maybe faulty ECU? Any update on yours man?

@redwoodjewellery Год назад

@@KickbasserGot same problem. What was your problem?

@Kickbasser Год назад

@@redwoodjewellery Hello, it was a faulty Throttle Position Sensor. I replaced it with new oem and it fixed the problem. I got high revs on idle and while driving. The sensor is reading volts from 0,4 up to 5+ so it was worn out and showed higher voltage in idle than normal, 5,7 in my case. I hope that helps. Good luck

@redwoodjewellery Год назад

@@Kickbasser problem for me is that in measuring 5 v in both signal wire and The signal fender wire wit the TPS disconnected. I guess my ECU is dead then?

@Kickbasser Год назад

@@redwoodjewellery My initial thoughs was the same. My readings were as yours with TPS disconnected. 5 volts in both wires. So I went and bought new one regardless. 40 euros for oem. You could try an aftermarket for around half the price of an OEM.