My buick regal check engine light came on 1999 buick regal ls

Question edited for clarity and toss in some CAPS.
Question moved to model category.

Shown in the parts schematics

https://www.google.com/search?q=1999+Buick+Regal+fuel+lines+diagram

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Check engine light on or flashing ? Engine misfire an you fried the catalytic converter but that is just a guess without testing . Can't help you don't have a lot of money . Your best option , take it to a qualified repair shop an have it tested properly .Don't guess ,test .

Is your SECURITY light flashing? If so, you have a V.A.T.S. problem. VATS stands for Vehicle Anti Theft System. Try getting a new ignition key made because the resistance value has probably changed in the one you have. If that doesn't do it you'll need to get a VATS bypass.

It can be the sending unit or the oil pump really has low pressure, have the oil pressure checked in the engine, if that is ok then the sender or the wiring to it is defective. DO NOT DRIVE THIS CAR UNTIL THIS IS CHECKED, YUOU WILL DESTROY THE ENGINE IF THE PRESSURE IS LOW. A NEW ENGINE IS ABOUT $3500.00, DO YOU WANT TO CHANCE THAT?

Bad ground or bulb contacts dirty

torque convertor solenoid in trans. bad

A couple of possibilities. 1st, check to see that the fuel pump is working. When you turn the key to on position (not all the way to crank the engine over), can you hear the pump? You should hear a humming sound from the gas tank . The fuel in the tank actually keeps the fuel pump from overheating. It is possible the pump is shot. It would be a good idea to change the fuel filter, as it may be plugged up from sediment from the bottom of the tank.

NEED TO SEE WHAT CODE IS IN THE PCM WHEN THE LIGHT COMES ON.MAY LEAD YOU IN THE RIGHT DIRECTION

iat screws into intake mine has two wires different year though.

Easy Way to check and KNOW for yourself --- Look Under rear at Where wheels Connect see if it has a TIE ROD and See If it has struts of Shocks TIE RODS & OR Struts Take Alighnment Shocks do not


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