96 cadilliac deville code p0134 - 1998 Cadillac DeVille

Assuming the cooling system is full, I would have the computer checked for trouble codes first.
The codes will point you in the right direction to diagnose the problem, but not tell you what to replace.
Depending on how it overheats, problems could include a bad thermostat, faulty cooling fan, or other issues.

Probably in the distributor then.

try replacing the fuel filter cheap but important part

you have to remove the fuel tank, the pump is a module that fits inside the fuel tank

P0134- O2 sensor Circ, bank 1, Sensor 1 no activity detected

P0135- O2 sensor heater circ, bank 1 sensor 1 malfunction

If you disconnected the battery it will do that

E39 means that your overdrive in the transmission is not working which will greatly effect your fuel mileage.

The most common fault is the TORQUE CONVERTER SOLENOID that is faulty.

I hope this helps you

It take a special tool to take the pump off. You can buy one at most auto-parts stores.

Code P0134 is the #1 oxygen sensor on bank 1, up near exhaust manifold.
Code P1133 is insufficient switching of bank 1 02 sensor. Need to replace it.

sounds like a bad mass air flow sensor. this sensor is located on the duct that connects to where the air filter goes, it should have one or two wires coming from it. Unfortunitly they are rather expensive so you will want to have someone with a computer hook up to your car and tell you what the exact problem is before you just go and poke around replacing expensive parts that do not need to be replaced.