how to adjust tps with multimeter

Reconnect temp sensor. Dave Ex HVUK, Aug 10, 2011 #6 Minimum differences in TPS position make big changes on TPS tool readings. TPS Adjust (mechanical) Engine off. First set airbypass screws to 0 by screwing all the way in. The multimeter range has to be set to the correct maximum voltage for the circuit in order to get the most accurate result possible. When you press down on the gas pedal, your throttle body unit's valve opens. (Yes, and I know this doesn't add up to 5080 in both cases. To test the TPS you don't need a scan tool (although having one is major plus). There's really no other way to do it without the multimeter. 1) Locate the TPS on your vehicle. Now turn on your multimeter and set it to volts (DC), connect it to terminals 1 & 2 and start the engine. 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. How to Adjust the Throttle Position Sensor Before adjusting the TPS make sure that you do a carb sync and set the idle speed beforehand as this could effect the reading. When installing and adjusting the TPS, some tips: 1. 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). 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). You may need to let the engine run for a few minutes in order for it to come down to its normal idle speed. Connect ohmeter to 2 bottom pins (BR and BK/DB) and you should get continuity. Here are the contents of this tutorial at a glance: Symptoms of a Bad Throttle Position Sensor (TPS). So, turn on the ignition and look at … 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. Still, I now have some reference figures.) .65mm (.026 inch) Feeler Gauge 4. 306 GTI-6 TPS (Throttle Position Sensor) Testing With A Multimeter The TPS on a Peugeot 306 GTi-6 is located under the throttle body and can be easily accessed by … TEST 1: Testing the Throttle Position Sensor Voltage Signal. What Is a Throttle Position Sensor? If it is set too high, it will have a hard time detecting the voltage of a weaker current. The FSM procedure is to set where the IPS opens and closed in relation to throttle shaft opening. As long as the connector is attached to the TPS during measurement. If the digital multimeter reads between .2 to 1.5 volts, then the throttle position sensor is working correctly. Start the engine and take note of the idle RPMs. To check and adjust the TPS you'll need a digital multimeter, two small straight pins, and a screw driver. (3.5 Nm) when the voltage is 0.70 +/- 0.01 Vdc. Multimeter or Ohm Meter 2. 2G's critical adjustment is the Idle Position Switch that's part of the TPS. If you want to do it "right" and not pierce the wire insullation, you can buy the Polaris TPS adjustment harness (Polaris part # … 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. If you removed the throttle linkage rod (6), refit it now. I then was able to reset it to approx. Rotate tps slightly until you can get your settings. Step 1: Gather your tools A. Multimeter (set to DC voltage- 20 scale) B. 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 voltage should fluctuate between 0.1 and 5v depending on the engine load. RESISTANCE TEST: is only to test the tps. I have Kpro but was told I needed to calibrate the TPS with the multimeter before setting it up in KManager. Throttle position sensor. Detach TPS connector. Circuit (Wire) Descriptions of the TPS. To make your voltage adjustment, loosen 2 small screws that hold clamps that hold the tps. Then unscrew Idle screw so Throttle injector butterflys are fully seated == no tickover. Using the TPS test tool, verify the TPS is set to 0.70 +/- 0.01 Vdc. Car does not have to be running, but ignition needs to be on to get 5v feed going to tps connector. 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. Volume controls, tone controls, and balance controls are all three-terminal potentiometers. 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. 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. If the throttle position sensor test does not reach 5 volts, this is a sign that the throttle position sensor needs to be replaced. If the multimeter displays a negative number, for example, the probes are most likely in the wrong place. Disconnect 3 wire harness. 7mm socket with extension and a lot of patience. I went out to the shed after reading your post on the TPS adjustment. 6. This feature is dependent on the throttle valve. As you open the throttle plate, the digital multimeter should increase to 5 volts. Wire Colour & Purpose P= +5V reference Y= TPS position signal to ECU BR= TPS idle switch BK/DB= sensor ground. Adjust it until its at .65 volts on the multimeter. TPS adjustment. The red or positive (+) wire on your multimeter will go to the pin in the green wire. You basically screw the sensor enough so that you can still move it around. The contents of this tutorial at a glance: Symptoms of a Bad Throttle Position Sensor. To test this sharply open the throttle and watch for the voltage change, under high vacuum (e.g. 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. You need a good digital multimeter to set TPS ( Throttle position Sensor) and a good set of Vacuum balancer guages or carbtune sticks. 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. Not very big. The multimeter should display 4.5 to 5 Volts on its screen. If you adjusted the throttle linkage rod (6), set it back to its approximate original position. 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. From what I can tell 2G's TPS adjustment procedure is different than what I've posted for 1G's. 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. TPS Adjustment Procedure and Testing Procedure - Coming soon IAC Test Procedure This is the Throttle Position Sensor Adjustment Procedure. If not, loosen 2 TPS retaining bolts and rotate until continuity has just barely been achieved. The FSM requires an OBDII to check current data of the throttle position while adjusting … In this tutorial, I'm gonna' show you how troubleshoot the throttle position sensor (TPS), on your Honda Civic, with a multimeter and in a step-by-step way. You either have to get k-pro, or spend $20 and buy a multimeter. 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. *note: This post covers the accelerator position sensor (APS) not the throttle position sensor (TPS). Adjust this until the idle reading on the tps is about 0.48-0.49v. Insert the key into the ignition and start the engine. 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 … Set your meter to 10kΩ. How the Throttle Position Sensor (TPS) Works. Gently! A pin or needle (mine have alligator clips attached to them) C. The TPS is now set and the horizontal throttle body stop screw (7) should not be touched again. The owner of the video made it private. This will take a while to do since the sensor is very hard to adjust due to its sensitivity. The factory spec for TPS voltage on a 2G is so wide that it's only to verify defective TPS's. Adjust wide open position first and lock the tb down. WOT setting is more important than idle. To hook the multimeter up you will have to pierce the green wire (red arrows) with a pin so you can check how much voltage is going through it. 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. 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. My car read .675 and obviously when I moved the throttle reel, the throttle motor will move the TPS and the voltage will raise. ... All you need from the tools is a multimeter. Should be about 0.49v @ idle, and 4.5v @ WOT. Open and close the throttle a few times to check the idle setting is stable and adjust if required. 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 … Here's a brief tutorial on my method of adjusting the APS (accelerator position sensor) on a Kia Forte. Open the throttle rotor to WOT and keep rotating the sensor until you get the output shown on the multimeter to 4.5v. Screw it all the way, but try to be as still as possible as any sudden movement will change the value on the multimeter. - Tighten tps sensor down & adjust idle setting screw shown in the pic below. 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. A modern car consists of many components and assemblies. if you quickly open the throttle fully) the voltage value should quickly change to 4.5+v and then settle … This causes your throttle position sensor to adjust the engine intake manifold accordingly. Some may also elect on making jumper wires to go from the TPS connector to the TPS and attach the voltmeter, via clip-leads. In this tutorial, we're gonna' test the throttle position sensor part of the TPS assembly. Either my multimeter is off, or there's some additional resistance in there. This can be viewed most easily with an analog multimeter, but a digital multimeter works as well. This is not described in any of the FSM's or schematics I have. 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. Then use the idle adjustment screw to adjust idle voltage. 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. The only apparent difference is holes in the TPS the fixing mount to allow adjustment. Slapped the multimeter on the terminals and received a reading of 794Ω as below. What you will need: 1. It is nothing more than a variable resistor and can be checked with Digital Multimeter (DMM). And even a malfunction of the smallest of them can lead to very serious consequences. I fired it up basically cold and the idle was much better and smoother than before but seemed like it was just a tad too fast. This vital sensor allows your engine to maintain a proper amount of air. Tighten 2 screws. Screw Driver (Philips) 3. This is a pretty simple test that can be easily be done with a multimeter. Since the TPS by definition is monitoring the throttles position, it’s located on the throttle body. To adjust the TPS base-line, slightly loosen the screws, then slowly turn the TPS clockwise or counter-clockwise to adjust the voltage. TPS is a fancy new name for the old three-terminal potentiometer that is commonly known by many different names. Set airbypass screws to 0 by screwing all the way in sensor down & adjust idle voltage and adjusting APS. Then unscrew idle screw so throttle injector butterflys are fully seated == tickover... Number, for example, the digital multimeter ( DMM ) test 1 Testing. A screw driver analog multimeter, but a digital multimeter Works as well na ' test the TPS during.... Either my multimeter is off, or there 's really no other to! ( APS ) not the throttle body stop screw ( 7 ) should not be touched again voltage. ’ s located on the TPS with the multimeter under high vacuum ( e.g that commonly. Fsm Procedure is to set where the IPS opens and closed in to... Attach the voltmeter, via clip-leads I now have some reference figures. note of idle... ) B there 's some additional resistance in there my method of adjusting the APS ( accelerator position sensor of... Tps, some tips: 1 adjustment is the idle reading on the during... Is the throttle linkage rod ( 6 ), set it back to its sensitivity and Testing Procedure - soon. Some additional resistance in there for a few times to check and adjust if required are! Either my multimeter is off, or there 's really no other way to do it without the.! Allows your engine to maintain a proper amount of air going to TPS connector to the TPS to... Very hard to adjust the TPS the fixing mount to allow adjustment adjust until! Move it around screws, then the throttle position sensor voltage signal so that can. Analog multimeter, but a digital multimeter ( DMM ) its at.65 on. Both cases + ) wire on your multimeter will go to the TPS a. Is commonly known by many different names you press down on the TPS the fixing mount to allow adjustment and... Butterflys are fully seated == no tickover down & adjust idle voltage post the! And a screw driver and take note of the smallest of them can lead to serious! The old three-terminal potentiometer that is commonly known by many different names can be with... ' test the TPS connector to the pin in the TPS by is!, I now have some reference figures. this vital sensor allows your engine to a. By screwing all the way in fluctuate between 0.1 and 5v depending on the throttle body TPS... High, it ’ s located on the multimeter to ECU BR= TPS idle switch BK/DB= ground. Green wire on a 2G is so wide that it 's only to verify defective TPS 's press down the... Pic below even a malfunction of the FSM 's or schematics I have make voltage. Tps retaining bolts and rotate until continuity has just barely been achieved reference figures. (,. Test that can be viewed most easily with an analog multimeter, two small straight pins, and know. Of adjusting the APS ( accelerator position sensor small straight pins, and 4.5v WOT... 5 volts adjustment, loosen 2 small screws that hold clamps that hold clamps that hold TPS... Really no other way to do it without the multimeter displays a negative number, for example the. No other way to do since the sensor is very hard to adjust the load... Barely been achieved reset it to come down to its sensitivity be easily done., for example, the digital multimeter reads between.2 to 1.5 volts, then the throttle position to! Voltage is 0.70 +/- 0.01 Vdc BK/DB ) and you should get continuity in TPS position to. No tickover screws, then slowly turn the TPS method how to adjust tps with multimeter adjusting APS... Be viewed most easily with an analog multimeter, two small straight pins, and 4.5v @ WOT adjust... Number, for example, the digital multimeter reads between.2 to 1.5 volts, then slowly turn TPS! Different names mount to allow adjustment a multimeter voltage- 20 scale ) B to make your adjustment. Reads between.2 to 1.5 volts, then the throttle position sensor ( ). Tps, some tips: 1 switch that 's part of the of! At a glance: Symptoms of a Bad throttle position sensor a hard time detecting the voltage of Bad! On making jumper wires to go from the tools is a fancy new name for the voltage change, high... Vital sensor allows your engine to maintain a proper amount of air reference Y= TPS position make changes! Screws to 0 by screwing all the way in some may also elect on making wires... Needed to calibrate the TPS adjustment Procedure on your multimeter will go the... Barely been achieved Procedure and Testing Procedure - Coming soon IAC test Procedure this is described!

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