Cadillac Repair: 1992 cadillac deville, throttle positioning sensor, batt cable


Question
QUESTION: My car knocks off,and when i turn corners it knocks off and it will ride good and then it will start surging like it is staving for gas, the filter has been chg and we put 2 injections in,and the engine light does not come on please help us if you can

ANSWER: Does the car experience these same symptoms when the gas tank is over half full ?.

Did this problem start to occur AFTER you removed the battery cable from the battery ?.


Did you check the computer just to see if there are any CODES stored ?. If you have not, Check it.

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QUESTION: It does surgeing and knocks off,it has done this when gas was half full,we put a throole position on it but that was not the problem the gas tank supposey was drop and cleaned, it drives good for a little while and then it starts surging ans knocks off

ANSWER: You did NOT answer any of my above questions.

After you replaced the throttle  positioning sensor did you adjust it correctly ?.

Did you perform an IDLE SPEED CONTROL MOTOR test ?.

Did you perform an IDLE RE-LEARN procedure ?.

---------- FOLLOW-UP ----------

QUESTION: we did not check for codes, how do you do that?we never remvd the batt cable,we took the throttle back,how do you do a idle speed control motor test,and a idle re-learn procedure,yes it has run bad with half tank of gas

Answer
Please elaborate on your quote: we took the throttle back.

If you are mechanicaly inclined or know of someone who is, You will need a DIGITAL MULTIMETER, Simple electrical schematics, Test procedures and picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture. I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information.