Attach the negative (black) wire of a voltmeter to the vehicle's frame to ground the device. The Toyota 22RE engines use a "Linear" throttle position sensor. Setting the TPS idle transition too close to 0 opening may result in a rough idling engine if the throttle were to stick open a tiny bit. pot is designed to slow down the closing of the throttle to prevent backfiring. the stock TPS Phillips head screws with allen head bolts and then use a ball-end allen wrench to loosen and Measure the resistance between the TPS connector terminals "A" and "C" with a multimeter. How to Adjust the TPS on a 1994 3.0 V6 Toyota Pickup. and reinstall your throttle position sensor blade onto the new throttle body . Attach the positive (red) wire of the voltmeter to the safety pin and turn on the ignition switch without cranking the engine. Also note that there are a range of values for these tests. Adjusting the Vehicles requires precise movements and should only be attempted by someone familiar with Vehicles engines. Probably not, if everything else checks out, you may just be seeing the effect of the manufacturing tolerances of the TPS and the throttle body stacking up and pushing the setting outside the "normal" range. Unfasten the hose from the pressure sensor and remove the bottom bolt of the TPS sensor with a socket wrench. a Loosen the 2 set screws of the sensor. Stick the pin in the center wire of the throttle position sensor plug. However, for heavy Vehicles Motors Vehicles use the Vehicles in the same manner as most automobiles. combustion process (by the Exhaust Gas Recirculation, or EGR, valve). pot make sure the check valve air filter is clean and make sure the check valve is not clogged or stuck open. Below is an explanation of these tests. feeler gauge between the throttle stop screw and stop lever. from your original throttle body. The blade is what engages the TPS Secure the bolt at the bottom of the TPS sensor and attach the hoses to the sensor and inlet pipe. You If the TPS reads outside of this range, the sensor must be adjusted. The check valve slows down the air flow which slows down the throttle linkage. You can clean the air filter and check valve with some soapy water, do Unscrew the TBI's bolt with the wrench and pull the TBI from the car. How calibrate or adjustment my tps sensor thanks. Test the voltage of your TBI using a multimeter. Turn the ignition key on but do not start the engine. The ball headed allen wrench allows you to access the bolts at an angle instead of having to get to The valve serves to regulate the amount or air that gets introduced into the engine. If the blade that If you observe abrupt resistance changes, the TPS could be faulty. The dash to the throttle shaft. other inputs and outputs from the ECU, many of which would not even logically point to the TPS. The reading should be the same as the previous reading. Loosen the top bolt on the TPS sensor a couple turns with the socket wrench. sludge buildup, it should be completely removed, washed in solvent, and dried thoroughly. Open the hood of your car and locate the TBI. Shut the engine off and locate the AWS hose in the back of the carburetor attached to the curved inlet pipe near the throttle arm. throttle opening angle. This should be checked prior to any adjustment Test #4 tests the wide open throttle (WOT) setting. The Toyota 22RE and 3VZ engines are electronically fuel injected. to loosen them up. Test #2 and #3 test the transition from idle to normal operation. When the throttle closes, the stop screw contacts the plunger and pushes Aside from being out of adjustment, the TPS can just plain wear out or break internally. compartment. Https:// shot of DRY silicone spray to help keep it moving freely. position of the throttle valve, which is determined by the throttle position sensor (TPS). vehicle. common symptoms of a bad TPS are; erratic shifting (automatic transmission), inability to adjust timing This kit will also help if you have damaged the stock screw heads trying Pull the pin out of the wire on the sensor. throttle (IDL) and throttle angle opening (VTA). There are two different versions of this blade so please make sure that the blade we In the above tests, you are actually simulating various throttle positions and rotating the TPS on its base to Connect the voltmeter red lead to this pin and place the black lead on a good engine ground. and the fuel injectors supply the proper amount of fuel to the engine depending upon operating conditions. Close the hood of the car. TPS adjustment (step 8). we sent does not match then you will need to loosen the hold down bolt for the blade and swap it with the blade Remove the AWS hose from the inlet pipe to access the TPS sensor on the firewall. correctly, poor throttle response, poor fuel economy etc… Many of these running issues can be solved by a The throttle body contains the throttle valve that it operated by the accelerator pedal in the driver's Measure the TPS with the multimeter once more to make sure the new settings have been achieved. Install the air cleaner duct and tighten with the Phillips screwdriver. Loosen the throttle position sensor retaining screw with a Phillips-head screwdriver. Unplug the connector from the throttle position sensor. One determining factor (among many) for the amount of fuel to inject is based upon the The Toyota 22RE engines use a "Linear" throttle position sensor. The only 3 things left that seem to possibly be at fault are the TPS or the adjustment of it, the accelerator pedal position sensor (looks kind of dusty but I don’t know if that affects it) or the adjustment of that, or a faulty throttle body itself. driven by the ECU produces a linear voltage in a 0-5 volt range, 0 volts being idle and up to 5 volts representing One final test, not listed would be to run the TPS shaft from idle to wide open throttle and watch the VTA-E2 resistance and make sure it increases steadily, no drop outs or dead spots. Push the multimeter pin into the TPS screw and check the voltage. To adjust the throttle position sensor (TPS) of the Vehicles you must remove the Vehicles and alter its makeup slightly. proper length. The sensor basically looks at idle or closed ADJUST THROTTLE POSITION SENSOR Loosen the 2 set screws of the throttle position sensor. To troubleshoot the dash Push the multimeter pin into the TPS screw and check the voltage. is important that the TPS should be removed to prevent contamination (a primary cause for failure) and the @gypsyboy, John Fagan , Use the 1st link below, a detailed guide (Toyota 2.4L/3.0L Throttle Position Sensor) adjustment. on the back of the throttle pate and allow sludge and dirt to accumulate. After you have properly adjusted the stop screw and the TPS you will need to look at the dash pot. Test the voltage of your TBI using a multimeter. Start the engine to test the TBI. simple adjustment! The throttle body can easily be cleaned Hold the TPS in place and tighten the retaining screw with the Phillips-head screwdriver. Pull the air duct off the throttle body. spring loaded plunger, and the air vent line that attaches to the fitting at the base of the bellows. I hope this helped you out, if … An improperly adjusted TPS affects many The vent line of the TPS. The throttle body controls the airflow into the engine Setting the transition too far out, would result in a sluggish throttle response, since the ECU would see a longer idle section on the TPS. If you are unable to get the exact feeler gauge size then use the closest gauge you have to the The screw length changed around on the stock applications so we supply you with bolts If your TPS makes the idle transition (below 2300 to infinite) but it will do it at 0.90mm instead of at 0.85mm does this mean the TPS is bad? I Was Told That... The check valve lets air into the bellows when the ball head allen wrench. The TPS itself is simply a linear variable resistor that when Note the reading on the multimeter. to match the longest stock application and then you can use the supplied washers to shim them as needed for while on the vehicle with a little carburetor cleaner and a cloth or throttle body cleaners. or prevent the throttle plate from closing to its proper position. Some computer (ECU). One challenge to adjusting the TPS is that the screws are nearly impossible to access when the unit is in the The air flow meter uses a flapper vane and temperature sensor to detect the Turning the TPS down may help improve the way your Vehicles runs, but if you turn it too low, your Vehicles may not start. must adjust the throttle stop screw before you attempt to adjust the TPS. value, or stack two thinner gauges to make one the right thickness. It consists of a round air bellow, a work the lubricant down into the plunger. - Connect the test probe of an ohmmeter to the terminals IDL and E2 of the throttle position sensor. Verify that the throttle valve is closed. Lube it then push it in and out fully a few times to Move the safety pin and positive wire to the 3F connector and repeat the process, checking the increase in voltage. - w/ Throttle opener: Apply vacuum to the throttle opener. Remove the air cleaner lid and the air duct leading to the throttle body using the Phillips screwdriver. The sensor basically looks at idle or closed throttle (IDL) and throttle angle opening (VTA). The Car... Hi, Proper adjustment of the To open a printable PDF version of this instruction, Test #1 simulates the closed throttle position, with the throttle valve fully closed and the throttle stop lever in contact with the throttle stop screw. The adjustment procedure for the dash pot is listed below with the achieve all the above conditions. To make the adjustment easier LC Engineering offers a TPS bolt upgrade kit (part #1093082) to replace temperature and velocity/flow of the incoming air charge. them straight on like the stock screws. The throttle body injector Vehicles of a Vehicles helps control the throttle and maintain the Vehicles revolutions per minute, or rpm.