so i finnaly got around to finding out the error codes on the car. after messing with it i got a code 21. the plugs are wet with fuel, and it stumbles and backfires. according to TGO code 21 is high voltage at throttle sensor.
what does that mean? and does that make it run rich? also, how the heck do i fix it???
any help is VERY apreciated.

 

ttt

 

a tps is a throttle position sensor. It relays to the computer were the throttle is at so it knows how hard you are stepping on the fuel. If it happened all the sudden then 8/10 times your tps has went bad. but that could not be the case neither. You need to get an ohm meter ( i perfer digial and you can buy one at wal-mart for like 20 bucks ) and find the tps sensor on you car. Depending on if you have a tpi or a tbi , it will vary in location between the 2. Either way it will have 3 wires and a wide plug connect to it. First thing i would check is to make sure you have a constant 5.0v running to it.(FYI instead of making jumper wires to do this, just push your tester ends into the back of the plug where the wires enter, you might have to wiggle round a little to get a connection but works better than jumper wires. ) so take the ohms meter and put the red connector into the grey wire ( which would be a constant 5.0v wire. ) and put the black one into the black wire ( ground ) if you have 5.0v with the key on but the engine not running then you need to check to see if your tps is good and is set to the correct voltage. To do this plug the red connector on the ohm's meter into the blue wire and the black to the black again. With the key on but the engine not running it should read between .45 to .60 ( i found .54 is ideal but as long as its between them 2 it shouldn't be overloading ) Now if it is between .45 and .60 then take your finger while looking at the ohm's meter and open the throttle slowly ( like you would be acc. but just from under the hood ) and the voltage should go up with out jumping or any "dead spots". If it jumps or has dead spots then replace tps and readjust. If it climbs normal then at WOT it should be above 4.0v. If all this checks normal then trace the blue wire as far back as possible and make sure there are no visible breaks in the wire. If all check good post new reply and i'll see if i can help you in farther investigation

 

Thank you very much! I actually replace the TPS yesterday, and I got the same result as before. I also checked the voltage and it seems to be right where it should be. I will look for an exposed wire tonight.
I will also recheck the voltage, and I will run the diagnostic again after I clear the computer.
I hope this will take care of it.
Oh, and it is a TPI car.

 

Having the same problem here. Ordered the new TPS already, if that doesn't fix it, then I will trace the wire as well.

Thanks for the information Missouraman

Josh