How can i tell if the thottle position sensor is bad without a multi meter and how do you adjust it when reinstalling

Sounds like a stuck thottle position sensor. Replace the sensor....

use a multi volt meter and check the reading on your tpi throttle position sensor it could be out of adjustment and also check your idle air solenoid and check the egr valve to make sure its not sticking.most likely one of the 3.you can find the volt setting for the throttle position sensor on you tube as well.hope this helps

that is a bad idle air control valve. it is located on the thottle body next to the thottle position sensor

my guess is thottle position sensor if it's a sensor?

The TPS ( THOTTLE POSITION SENSOR) tells the engine computer and trans how far you are pushing the gas pedal. Its mounted on the side of the thottle body. It will make the engine surge if it is failing. Have replaced this part many times for this problem. TCM (TRANS CONTROL MODULE) control trans shifting. The tps is and one of the input sensor for shifting.

Its probabley your (TPS) Throttle Position Sensor...it mounts to the side of the thottle body........Hope this helped you ???

• Sounds like your ABS sensor needs replaced. The speed sensors sends signals to the computer for the ABS and that is the sent to the speedometer. No ABS - No signal.

• To get to your ABS sensor you can jack the car up and remove the tire and it will be inside (on the top) of the HUB (bearings) on the spindle. When you remove the ABS sensor follow these steps to test each one before replacing it.

1. Remove the ABS sensor.
2. You will see two contact points on the end of the plug.
3. Get a multi meter and set it to Ohms and put negative to negative and positive to positive from your multi meter to the contacts on the ABS sensor. You should get the same reading of Ohms as the sensor is. If not then it needs replaced. You did not list the year, make or engine size of your Volvo so at this point I cannot tell you the Ohm rating of your sensors. You can find this information out in your car manual or a simple call to a parts store.

• That being said the alternator going bad can do this too. But there is more symptoms to go with the ones you expressed. The car may ****, things may not be working as usual, lack of power. These are because the alternator goes bad and the battery can not keep up and the car could die sometime.

Regards, Tony

is there an adjustment on thottle positioning sensor?????

Pumping the gas on an injected engine does little except for varying the amount of air going into it. I'd try to find a "happy place" to position the pedal when attempting to start it. You may want to test the manifold air temperature sensor, throttle position sensor and map sensor, possibly even the engine temp sensor, all of which may be contributing to the problem if they are out of range. The items you mentioned are another good idea to check as well as the pump and pump resistor near the master cyl on the fender (if yours has one).
Problem with diagnosing something like that online is that without actually doing tests on the components I mentioned, since many sensors feed info to the computer, which the computer makes adjustments for, many times in making those adjustments it can make one problem appear to be very much like what it isn't. You will need a fuel pressure tester to do any real testing on the fuel system but with either a haynes or chilton manual as a reference,you can do specific testing on everything else using a digital multi-meter.

A scan tool is necessary to check the TPS voltage so if tool not available have a local shop or dealer perform this. Otherwise a check engine light may be induced from the mis-adjusted TPS sensor. There is the old school way to check and your going to need a multi meter. Disconnect the wire harness from the TPS and use the multi meter to test the resistance on the TPS, as you turn the throttle up the resistance should go up as a contain value in a smooth readings without any jumps. Good luck and hope this helps, keep me posted be glad to help and why do you think there is a TPS malfunction?