Need Help-with 86 Park Avenue

I Put Pennzoil Fuel Injector/carb Cleaner In My Car And Ran It For A Few Minutes...about 4 Hours Later I Went To Start My Car And The Car Would Start For A Few Seconds And Shut Back Off....also Gas Is Getting Into My Oil Pan..and Its Back Firing Throu My Air Intake System......can Anyone Help Me...you can also contact me on msn messenger...my email there to add me.....da_moose_is_loose@hotmail.com[/email][/email]

how much gas was in the tank?

The Tank Was Full

Check the fuel pressure and regulator to start with.

Someone Lokked At It Yesterday Who Was Not A Mechanic....he Thinks The Tps Is Gone...I THINK ITS THE EGR VALVE ......so Hes Gonna Try And Hook Up Code Reader....hopefully It Will Help Me..

Code reader won't show this type of problem. The key here is the overfueling issue, as noted above.

Gas in the oil pan? :disappoin :nono:

Fuel is leaking from somewhere, is it a carb, FI or TB car?

Fuel Injector

Fuel pressure should be 35 to 45 on the rail, if ok, pull the fuel rail and injectors out and turn ignition on to pressurize system. Check injectors for leaks.