Whack That Sensor To Find Out

Whack That Sensor To Find Out - Bad TPS or ECU?

Рет қаралды 80,857

Жыл бұрын

In this video I'll show you how you can diagnose problems with the throttle position sensor whether a 3 or 4 wire sensor without a wiring diagram. I'll explain what the reference voltage, Signal Voltage, ground and in the case of this LS400 IDLE Switch Voltage is and how to check them as well.
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Disclaimer:
Due to factors beyond the control of Ratchets and Wrenches, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Ratchets and Wrenches assumes no liability for any property or personal damage that may arise from doing a repair on your vehicle after watching any of my repair video's. Due to factors beyond the control of Ratchets and Wrenches, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Again Any injury, damage or loss that may result from improper use of tools, equipment, or the information contained in this video is the sole responsibility of the user and not Ratchets and Wrenches.

Пікірлер: 68

@wesfields9322 Жыл бұрын

I know you're a very busy man, but I look forward for every new upload of your wisdom.

@illuminatedsoles331 Жыл бұрын

Watching a professional mechanic troubleshoot live was actually really helpful 👍

@wyattoneable Жыл бұрын

Class is in session, I'm taking notes for the test. I always enjoy stopping by the shop!

@HouseCallAutoRepair Жыл бұрын

Everything is a lesson! Allways picking up tidbits

@majormeteor 4 ай бұрын

Excellent troubleshooting. I liked how you went through what also worked and moved on to checking the TPS switch.

@luciohuet8513 Жыл бұрын

Good to see you are back.

@williamwhite9767 Жыл бұрын

Thank you for this video! Very interesting! If the "store" had this in stock, it must be a common failure on these cars.

@napoliansolo7865 Жыл бұрын

I love learning new stuff like this! Keep it up.

@sketchuptec4196 16 күн бұрын

Thats how you do it and that how great people share their knowledge. Stay blessed Sir

@elgato2453 Жыл бұрын

Interesting i was just watching videos about power and ground side switches. Cool to see how to use logic when not having a diagram and scope in hand. Thank you sir.

@danielsimpson8929 Жыл бұрын

I like that you get it fixed right 😀 I would have done two things before replacing the switch and if it mostly fixed it, may have left it at that.. leading to a bad computer I guess lol First would have been cleaning the throttle body. Second would have been cleaning the contacts of the sensor and disassemble it if able for further cleaning and inspection. Then while in there I'd probably clean the maf or map, anything I might have taken apart to get the TB off for a full cleaning. Lol

@jeromesurffoil7033 6 ай бұрын

Excellent diagnostic tutorial! Thank you!

@jonathanmason2569 Жыл бұрын

Love that u did this live. We learned together 😃

@scottpollard3270 Жыл бұрын

This was awesome. Excellent explanation. Would love to see this for other sensors, esp. 02 sensor or nox sensor for diesel.

@davedeatherage4902 Жыл бұрын

Thank you! Great explanation.

@richardzapor1983 3 ай бұрын

very good explanation , thanks and good timing for me because I am trying to diagnose a problem with my 2000 mazda .

@craigtegeler4677 Жыл бұрын

I had a 91 Camaro 3.1 L engine that puked the TPS sensor at 93K miles and it had all the symptoms with erratic idle and was easily validated. Also, given the amount of miles on the odometer, it is very common that a good many vehicles for the mileage of 90K miles or better for the TPS to fail. Also, knowing that my Mom had the ECU replaced by the dealer already for another problem all together previously. Upon replacing the TPS sensor, I also took the liberty of cleaning the IAC Valve pintle and also inside the IAC port housing for good measure! I also did cleaning of the internal throttle valve body and the mass airflow sensor as a scheduled service!

@Austropot 24 күн бұрын

Excellent talk through thanks

@MissChelseaLynn Жыл бұрын

You are a God because you know what you didn't even know I had this problem at the moment of trying to identify without that diagnostic tool that you were talking about but yes thank you so much I do have a multimeter

@charlesatwell9976 Жыл бұрын

Great stuff !

@CarlosContreras-gk9gp Жыл бұрын

Amazing video !

@JonnyDIY Жыл бұрын

Great tip with the screwdriver mimicing the bumps and vibrations of the road and engine. For the adjusting of the TPS, how does that work? Is there just an allowable tolerance spec you put it in and mount it?? 🤔

@ozzstars_cars Жыл бұрын

The last time I wacked my sensor it was sore for two or three days. Eventually everything started working well again. Seriously though great info man!

@wyattoneable Жыл бұрын

Is your sensor a "pull up design or a pull down" design? :)

@ozzstars_cars Жыл бұрын

@@wyattoneable does both. 😁

@raywatson5617 7 ай бұрын

Good stuff man!!

@madetoremain Жыл бұрын

Hi . Great as usual Can you please explain how to test the 7 pin MAF that came in kia sephia 94 1.6 L AT please ?

@jameswhite1319 Жыл бұрын

Thanks for sharing

@tommcqueen3145 Жыл бұрын

Good show

@JackdeDuCoeur Жыл бұрын

Nice work

@larrymattox2471 5 ай бұрын

Great video! What would cause a 1988 F150 300 six manual shift to jerk and surge when letting off the gas peddle. New TPS , ICV , wires, cap and rotor. Runs and idles great. Thanks Larry

@user-dp8gb9zu8v 4 ай бұрын

I have 1989 Ford F250 with a 351ci 5.8L V8 and because my scan tool doesn't work on OBD and OBD 1 systems. I pulled the code with the blinking check engine light. and got a 53 code and came up with TPS circuit above maximum 4.5 volts. but I'm not sure what the parameters are supposed to be for that particular TPS. or if it's something in the circuit that is out of range.

@rustybumperclassics6342 Жыл бұрын

Super helpful

@michelangelosworld4401 6 ай бұрын

Thank you!!!

@ELNENOMELGO-bk2xs 4 ай бұрын

sir thank you . please make a tutorial again about the wiring diagram about input and and out of the ecu.

@abu.waleed1016 2 ай бұрын

Thanks 🙏

@GregRickard 2 ай бұрын

Ty for this 4 wire vid, i think the 12v wire on my hiace is faulty. its not changing when i open the throttle, just stays on 12v. might throw a new tps at it :)

@delcorick9967 Жыл бұрын

Perfect vudeo!

@HouseCallAutoRepair Жыл бұрын

Now, how do you properly calibrate it's position to the throttle plate? IAC, RPM, Voltages, Variations? How's the Cali weather these days?

@joshuasingh9720 10 ай бұрын

Damn u good bro wel done

@wholeNwon Жыл бұрын

I have a '98, so filing all these potential problems away just in case. 25 yrs. and so far, so good.

@kingsleykafuieviam6523 10 ай бұрын

Hello bro, please is there any way you can check for power and ground side of ECU without a wiring diagram? please let me know and I will appreciate it.thank you

@lieutenantdan8170 Жыл бұрын

yeah 90's lexus and toyota ecus have leaking capacitors problems

@24arvin 3 ай бұрын

what happens if i accidentally check the others for continuity to ground?😢

@GregRickard 2 ай бұрын

My idle switch is always at 11v, stuck there. I put a new tps and its still like that. any ideas?

@rafaelmarin1963 Жыл бұрын

👍👍

@billmcdougall9327 9 ай бұрын

My 05 Pontiac Grand Prix GTP is fly by wire and has 17 pins. Not a big fan of fly by wire.

@danielweeks3723 Жыл бұрын

Wait a minute. let me get this straight. You want us, all of us, to whack our sensors?

@RK-kn1ud Жыл бұрын

I'd be interested in seeing a teardown showing the failure mode of the sensor. I'm gonna guess that it's corrosion caused by water ingress, but I've been surprised before. Could just be a mechanical failure I suppose. That said, it worked out for you this time, but back-probing will bite you in the ass one day. One day you're gonna waste a bunch of time over a poor back-probed connection. I'd go straight to Pomona piercing probes.

@simeonsimeonov8012 Жыл бұрын

It's not water, the issue is heat so the plastic inside get damaged. Lexus gs300 mk2 98-05, has absolutely the same tps drama...

@moygigi7839 Ай бұрын

what causes of i've got ground over 100

@MissChelseaLynn Жыл бұрын

Okay now I'm commenting while I'm watching I have way more wires to my throttle position sensor

@MrBeefsnorkel Жыл бұрын

LS 4 hunnid

@BeADad2447 Ай бұрын

Lexus cars break?

@leor838 Жыл бұрын

So to fix your problem don't let that guy bang on the switch with a screwdriver anymore 🤣

@gordonwedman3179 Жыл бұрын

That is weird. I don't understand how an off and on switch can give intermediate voltages.

@duckhunter8387 Жыл бұрын

Because its broke

@kellismith4329 Жыл бұрын

It’s not a switch, a potentiometer

@markrice3019 Жыл бұрын

😀😃

@ronmcdade2865 Жыл бұрын

I have 7 wires

@jcaleca60 Жыл бұрын

I had a throttle position sensor go bad on me the car took off 200 miles an hour I had to shut the car off put it in neutral very scary situation

@kellismith4329 Жыл бұрын

What kind of car will go 200 mph ?

@jcaleca60 Жыл бұрын

@@kellismith4329 120

@dipankarsd Жыл бұрын

First viewer!

@coycarlson4979 8 ай бұрын

Only paid $55,000 for the vehicle - been running good for the past 6 years - why would I want to spend $65 for a new TPS just because the check engine light illuminates - I mean HEY, it only does it periodically 😐😏😳