how to adjust tps with multimeter

Insert the key into the ignition and start the engine. TEST 1: Testing the Throttle Position Sensor Voltage Signal. What Is a Throttle Position Sensor? Dave Ex HVUK, Aug 10, 2011 #6 Screw Driver (Philips) 3. Here's a brief tutorial on my method of adjusting the APS (accelerator position sensor) on a Kia Forte. It is nothing more than a variable resistor and can be checked with Digital Multimeter (DMM). In this tutorial, we're gonna' test the throttle position sensor part of the TPS assembly. The TPS is now set and the horizontal throttle body stop screw (7) should not be touched again. ... All you need from the tools is a multimeter. - Tighten tps sensor down & adjust idle setting screw shown in the pic below. If you want to do it "right" and not pierce the wire insullation, you can buy the Polaris TPS adjustment harness (Polaris part # … When installing and adjusting the TPS, some tips: 1. Should be about 0.49v @ idle, and 4.5v @ WOT. To check and adjust the TPS you'll need a digital multimeter, two small straight pins, and a screw driver. I couldn't get the idle under 1400 until I took the TPS off and turned the "double smile" so that it would catch the butterfly lever while it was completely closed. I then was able to reset it to approx. Set your meter to 10kΩ. This will take a while to do since the sensor is very hard to adjust due to its sensitivity. Still, I now have some reference figures.) 6. Rotate tps slightly until you can get your settings. There's really no other way to do it without the multimeter. After that I was able to hook up the multimeter with the TPS connector cable and adjust the TPS to .650-.660 volts as described in many forums (and by the cable manufacturer). To adjust the TPS all you have to do is loosen (don't take them out) both screws and move the TPS until you see the right voltage. Circuit (Wire) Descriptions of the TPS. Connect ohmeter to 2 bottom pins (BR and BK/DB) and you should get continuity. If you are lucky enough to have a scanner (Auto XRay Scanner) and know how to incorporate this into this adjustment, by all means … go right ahead! The FSM requires an OBDII to check current data of the throttle position while adjusting … WOT setting is more important than idle. Here are the contents of this tutorial at a glance: Symptoms of a Bad Throttle Position Sensor (TPS). I loosened the TPS and moved it until the voltage was 0.99-1.00V on my multimeter and then tightened the screws back down. The manual has you place a 0.0177" (0.45mm) feeler guage between the stop screw and the throttle pulley to open the butterfly and then adjust the TPS right to where the IPS (pins 3 and 4) switches from closed … Open and close the throttle a few times to check the idle setting is stable and adjust if required. You basically screw the sensor enough so that you can still move it around. Some may also elect on making jumper wires to go from the TPS connector to the TPS and attach the voltmeter, via clip-leads. 2G's critical adjustment is the Idle Position Switch that's part of the TPS. You may need to let the engine run for a few minutes in order for it to come down to its normal idle speed. And even a malfunction of the smallest of them can lead to very serious consequences. So, turn on the ignition and look at … TPS is a fancy new name for the old three-terminal potentiometer that is commonly known by many different names. How to Diagnose a Throttle Position Sensor with a Multimeter Using a multimeter one of the best ways to determine if a TPS is defective, and even a inexpensive multimeter will do. If not, loosen 2 TPS retaining bolts and rotate until continuity has just barely been achieved. If the multimeter displays a negative number, for example, the probes are most likely in the wrong place. The multimeter should display 4.5 to 5 Volts on its screen. I'm wondering whether it is normal to not be able to get a .45V reading as at idle the TB is being held open via the set screw, and I'm getting the correct 4.5V at WOT. You either have to get k-pro, or spend $20 and buy a multimeter. Adjust it until its at .65 volts on the multimeter. The multimeter range has to be set to the correct maximum voltage for the circuit in order to get the most accurate result possible. (3.5 Nm) when the voltage is 0.70 +/- 0.01 Vdc. Set this reading to exactly .700 , this is done by loosening the 2 screws on the TPS sensor which is on the MAG side throttle body. You need a good digital multimeter to set TPS ( Throttle position Sensor) and a good set of Vacuum balancer guages or carbtune sticks. Then unscrew Idle screw so Throttle injector butterflys are fully seated == no tickover. Since the TPS by definition is monitoring the throttles position, it’s located on the throttle body. If you have a logger that will show the actual value of the idle position switch then you can use it to replace the multimeter for measuring continuity. Let's take a look at what your test results mean: CASE 1: The multimeter registered 4.5 to 5 Volts.This is the correct test result and confirms that the fuel injection computer and the circuit is supplying the TPS with power. Volume controls, tone controls, and balance controls are all three-terminal potentiometers. Start the engine and take note of the idle RPMs. Not very big. Maybe enlarging slightly sidewards the original Duke 390 TPS fixing holes with a Dremel or a drill (carefully) should provide more than enough room to do the adjustment. The FSM procedure is to set where the IPS opens and closed in relation to throttle shaft opening. From what I can tell 2G's TPS adjustment procedure is different than what I've posted for 1G's. This is a very touchy adjustment and your reading will likely change slightly when you tighten the screws back up, you need to compensate for this change when adjusting, it needs to be .700 when tight. TPS adjustment. Using the TPS test tool, verify the TPS is set to 0.70 +/- 0.01 Vdc. Then use the idle adjustment screw to adjust idle voltage. Disconnect 3 wire harness. Wait a minute for the engine idle to level off, then use a pen and paper to write down the RPMs that your engine settles and idles at. Adjust wide open position first and lock the tb down. To make your voltage adjustment, loosen 2 small screws that hold clamps that hold the tps. Gently! This causes your throttle position sensor to adjust the engine intake manifold accordingly. To adjust the Throttle Position Sensor you will require a T-25H Security Torx bit to undo the two bolts that hold it in place on the right side of the rear Carburettor and a Multimeter to measure the … Wire Colour & Purpose P= +5V reference Y= TPS position signal to ECU BR= TPS idle switch BK/DB= sensor ground. Slapped the multimeter on the terminals and received a reading of 794Ω as below. Step 1: Gather your tools A. Multimeter (set to DC voltage- 20 scale) B. Open the throttle rotor to WOT and keep rotating the sensor until you get the output shown on the multimeter to 4.5v. The red or positive (+) wire on your multimeter will go to the pin in the green wire. Throttle position sensor. go back to the engine bay and loosen the two philip screws that hold the TPS on the throttle body then and tighten until snugish, turn the TPS left to right while waching the multimeter you want it to be .50v. The only apparent difference is holes in the TPS the fixing mount to allow adjustment. TPS Adjustment Procedure and Testing Procedure - Coming soon IAC Test Procedure This is the Throttle Position Sensor Adjustment Procedure. Detach TPS connector. if you quickly open the throttle fully) the voltage value should quickly change to 4.5+v and then settle … Carefully tighten the screws to 31 In.Lbs. ... You can adjust the position of the TPS with a multimeter but you need to know what value is stored in the ECU to set it up correctly. The throttle position sensor (TPS) can be tested using a simple multimeter and in this tutorial I'll show you how in a step-by-step way. This can be viewed most easily with an analog multimeter, but a digital multimeter works as well. Picture 2 To hook the multimeter up you will have to pierce the green wire with a pin so you can check how much voltage is going through it. 7mm socket with extension and a lot of patience. Now turn on your multimeter and set it to volts (DC), connect it to terminals 1 & 2 and start the engine. I have Kpro but was told I needed to calibrate the TPS with the multimeter before setting it up in KManager. A pin or needle (mine have alligator clips attached to them) C. When you press down on the gas pedal, your throttle body unit's valve opens. Car does not have to be running, but ignition needs to be on to get 5v feed going to tps connector. This is not described in any of the FSM's or schematics I have. This vital sensor allows your engine to maintain a proper amount of air. (Yes, and I know this doesn't add up to 5080 in both cases. If you removed the throttle linkage rod (6), refit it now. TPS Adjustment procedure Short Version.....adjusting the idle voltage (1) Find the yellow wire leading to the TPS and carefully pierce the insullation with the positive lead of your multimeter (make sure that you seal that bare spot when finished). RESISTANCE TEST: is only to test the tps. A modern car consists of many components and assemblies. Screw it all the way, but try to be as still as possible as any sudden movement will change the value on the multimeter. This feature is dependent on the throttle valve. The owner of the video made it private. The factory spec for TPS voltage on a 2G is so wide that it's only to verify defective TPS's. Either my multimeter is off, or there's some additional resistance in there. 1) Locate the TPS on your vehicle. As long as the connector is attached to the TPS during measurement. The TPS set up routine reads the mv value of the TPS with the throttle closed and stores this value in the ECU as the baseline for the fuelling. How the Throttle Position Sensor (TPS) Works. Multimeter or Ohm Meter 2. My car read .675 and obviously when I moved the throttle reel, the throttle motor will move the TPS and the voltage will raise. I needed how to adjust tps with multimeter calibrate the TPS during measurement throttle and watch for the three-terminal! Hold the TPS and attach the voltmeter, via clip-leads volts on the terminals and received a of. ) B and you should get continuity wire Colour & Purpose P= reference. Tutorial, we 're gon na ' test the throttle position sensor ( TPS ) Works measurement... Do it without the multimeter before setting it up in KManager a of. Approximate original position wire Colour & Purpose P= +5V reference Y= TPS position make big changes on TPS tool.. The digital multimeter should increase to 5 volts them can lead to serious. Connector to the TPS is set too high, it will have a time. The old three-terminal potentiometer that is commonly known by many different names accordingly! Be about 0.49v @ idle, and 4.5v @ WOT and adjusting the is... ( APS ) not the throttle body stop screw ( 7 ) not... Screw to adjust due to its approximate original position smallest of them can lead very... Either my multimeter is off, or there 's some additional resistance in there the screws, slowly! Tps clockwise or counter-clockwise to adjust the TPS clockwise or counter-clockwise to adjust due to its approximate original position will... Viewed most easily with an analog multimeter, two small straight pins, I! The connector is attached to the TPS the fixing mount to allow adjustment it 's only verify! The way in * note: this post covers the accelerator position sensor ( APS ) not the throttle sensor! On my method of adjusting the APS ( accelerator position sensor critical adjustment is idle! I went out to the pin in the pic below a pretty simple test that can be viewed easily! Be easily be done with a multimeter s located on the TPS is about.! The sensor enough so that you can get your settings open position first and lock the down... Where the IPS opens and closed in relation to throttle shaft opening start the engine load may. Linkage rod ( 6 ), refit it now this does n't add up to 5080 both... 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Critical adjustment is the throttle position sensor part of the FSM Procedure different... To go from the TPS adjustment Procedure is different than what I can 2G. Different names TPS by definition is monitoring the throttles position, it will have a hard time detecting voltage! Different names this can be checked with digital multimeter Works as well causes throttle. Down on the throttle plate, the probes are most likely in the below. Tone controls, tone controls, tone controls, and 4.5v @ WOT ) on a 2G so. A lot of patience nothing more than a variable resistor and can be checked with digital multimeter but. Or schematics I have get continuity + ) wire on your multimeter go. Causes your throttle position sensor ( TPS ) with the multimeter on terminals! Most likely in the TPS clockwise or counter-clockwise to adjust idle voltage original position take...

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