Car dies out

[blklink]

Tomorrow I will try that. Because this is PMO Im hating this car more and more its like I never had a problem with it and all of a sudden it just wants to act stupid. It has 216k on it and it ran perfect then all of a sudden this crap... UGH> but tomorrow I will see if I can get the voltage on the up streams and the down streams and see what they look like on voltage. Today it has been raining all day long and tomorrow I dont know what will happen they are calling for rain tomorrow too. So it will vary if I can get to it tomorrow.

[shorod]

The voltage on the Sensor 1 sensors should NOT remain around 0.6 volts, it should rapidly float between 0.1 and 0.9 volts. The average voltage will be around 0.45 v if the engine is running well. If you had working catalytic converters the Sensor 2 sensors would remain fairly steady at some voltage rather than switching rapidly. If the Sensor 1 sensors are not switching rapidly, they are slow to respond and likely due to be replaced. Since your converters are gutted, your Sensor 2 readings will likely look just like your Sensor 1 readings.

The Green/_____ wire to the oxygen sensor is the heater power wire. One brown/______ wire is the heater ground (switched by the PCM), the other wire of the same colors is the signal return to the PCM (essentially both are ground), and the white/_____ wire is the reference voltage from the PCM.

-Rod

[blklink]

Alright I have been taking my notes. Alright when in the past post I added I was talking about the scan tool picked up bank 1 lean. Which side is bank 1 someone told me that it is the left side of the motor standing in front of it which makes passenger side is this correct!? Which I'm going to check both sides just want to be certain that which side is which. Thanks Rod for clearing that up a bit. As soon as I get to it I can give ore info. Right now rain, soggy grounds, and 30-35 degrees not to good to be working on a car...

[shorod]

On an LS sold in the US, bank 1 is indeed the passenger side. On a V6 it's also the side that's difficult to work on.

-Rod

[danielsatur]

4-wire HO2 sensor signals -
Gnd
ECU signal wire for Air/fuel mix 14:1
Heater
Temp of Cat

Some Technicians use two wire O2 sensors, and like using CEL cheaters!

Was there ever a smoke, or compression test done?

The smoke test would of pin pointed any unmetered air leaks which could cause your lean code on bank1. The compression test would of told you, if the car was worth fix!

[blklink]

The thing is it will run fine for a little bit then it will act crazy as in idle rough and/or stall out. But you can cut the car off and start it back up and it runs fine like nothing happens then it will do the same things over again. So my guess is something that the computer is resetting, something electrical.

[CJ0717]

I don't know if it means anything or not but in the world of engine producers the right or left bank of an enging is from looking at the engine from the rear transmission face looking towards the front of the engine. Maybe Lincoln does it differently.

Have you attempted to duplicate your test from before with the one O2 sensor taken out? Seemed like it ran fine when it was out prior to the exhaust system being repaired.

As well have you disconnected the battery for a few minutes and make sure the PCM is totally deazd so when it starts back up it will recal to all of the current info being sent to it. It may still be working with past information from before the exhaust was repaired and over compensating.

[danielsatur]

Any unmetered air leaks from a bad PCV, EGR, and Intake system can cause a lean code, and the symptoms you are describing.
See Smoke Test, www.youtube.com/watch?v=FfiQ7qWiG-M

[shorod]

I don't know where Danielsatur got his pinout, but it's not accurate. From the factory service manual, pin one is power to the heater, pin 2 is the switched ground for the heater, pin 3 is signal return, and pin 4 is the reference voltage for the oxygen sensor element. There is no temp sensor for the converter as part of the 4-wire heated oxygen sensor.

Along the lines of what CJ has suggested, how old is your battery? The electrical systems of these cars are VERY sensitive. An old battery, not even a weak battery, can cause goofy electrical issues.

-Rod

[danielsatur]

Check your AutoScan for the Catalytic converter Temps!

A blown, or gutted cat would have a lower temp.

Signals not pinouts, some stuff is just a secret for CEL cheat circuits.

[blklink]

Originally Posted by shorod

I don't know where Danielsatur got his pinout, but it's not accurate. From the factory service manual, pin one is power to the heater, pin 2 is the switched ground for the heater, pin 3 is signal return, and pin 4 is the reference voltage for the oxygen sensor element. There is no temp sensor for the converter as part of the 4-wire heated oxygen sensor.

Along the lines of what CJ has suggested, how old is your battery? The electrical systems of these cars are VERY sensitive. An old battery, not even a weak battery, can cause goofy electrical issues.

-Rod

You know what I have been wondering about the battery we have had that battery for a while now. And I know its kinda weak because you can leave the car on for no more than 5 minutes without it running and try to start the car and the battery is dead or its drained so bad that the car sounds like it is struggling to start. So I'm gonna go buy a new battery tomorrow to see if anything helps. Hoprfully it will cause I need this car fixed.
Thanks Rod for the corrections on the 02 sensors.

[danielsatur]

A bad, or old battery is a very good way to burn up your Alternator!

[blklink]

Originally Posted by danielsatur

A bad, or old battery is a very good way to burn up your Alternator!

I know that I started this thread for the intentions of getting help. But when you say something that someone else has said or something simple to the fact, its no help at all. I am mechanically inclined, but when it comes to this car there's not to many people that can work on the lincoln ls. I know that a bad battery can harm your alternator. I'm not trying to be mean or ugly or a ass as anyone can say. I'm just looking for clues hints help. Not something that someone said then someone else says the same in a different way. Any HELPFUL info would be greatfully appreciated in everyway. Thanks Rod and CJ for the helpful tips that u are giving me. I'm going to buy a new battery today to see if anything changes. Also where would I buy a fuel regulator for this car? The local parts store does not have one. So I would be looking to go to the dealer with this part wouldn't I?

[shorod]

I happen to have an unused Motorcraft fuel pressure sensor sitting in my garage that I bought for my wife's 2002 LS V6, but didn't need after I replaced the battery. I'm not sure if it's the same part number that your car would require. I picked it up from Fast Parts Network. The LS has a returnless fuel supply system so there is no regulator. Instead there is a fuel pressure sensor that mounts to the fuel rail which provides pressure information to the PCM to modulate the fuel pump duty cycle to maintain the appropriate fuel pressure at the rail.

-Rod

[danielsatur]

Why would four H02 sensors be bought, if cat's are gutted?
How much $ is thrown @ this project, because KBB Trade-in value without cats is below $1500.