Hello im working on my 2001 Chrysler town and country 3.3 engine front wheel drive. i found a sensor I believe to be the lambda probe sensor and it is just hanging on the end of its wires.all i can find on the internet so far is the location of the o2 sensors but this lambda sensor bolts in with one bolt instead of screwing in like the traditional o2 sensor.I cannot find anything showing where this sensor should be bolted on at. Please help if you can thank you.

 

there is no such thing as that on a Chrysler and if there was its still an o2 sensor so your not looking at an o2 sensor take a pic or it and what area you are looking at.

 

I will have to take a pic tomorrow. Me and two autozone employees to find it on their computer. I will send the pic tomorrow.

 

need a pic of where you are looking on the car. i dont need a picture of the sensor you think it is.

 

well I didn get a pic of where I was looking and my daughter's gone in the van for the night. When your facing the front of the van. I'm looking on the right and on the back side. The wires for the sensor come out where the AC lines come through the firewall. They are only long enough to teach the right rear of the engine. I'll get a pic of where I'm looking and post it tomorrow when she gets back home.

 

that is what is supposed to be the Lambda probe sensor and it's at the end of it's reach so I'm thinking it must go on the back of the engine there about the intake or exhaust manifolds

 

This is not an O2 sensor (lambda appears to be a UK/European term for O2 sensor). It does not appear to be an engine sensor as it is routing through the firewall by the a/c lines; engine sensors are typically wired through an engine harness which flexes with the engine. If you unplug the sensor you should be able to find a part number.

 

Auto zone is how I found out what it is supposed to be called. The found a pic of it and told me what it was. I agree with what you said. I thought the same thing. Any ways the reason I was working on the van in the first place is cause it cranks an abnormally long time before it fires up. Heat or cold doesnt seem to affect the problem. Also at lower RPMS like say if it's in high gear and you go to give it fuel it has a what seems to be a miss and always if you stop a then pull back out when you give it gas quickly it has a hesitation and will sometimes die on yuh at a stop sign or red light. Code reader said was a bad O2 sensor heater. Then later said the O2 sensor was bad so I bought a new one n changed it. Didn't help a thing. Any ideas? If it was a carburated engine I'd say it acts like a vaccume leak which by the way I checked for. Also tested the egr valve and changed the gasket.

 

What is the part number that AutoZone noted? O2 sensors are ignored when first starting the motor, called open loop, so any miss or long cranking are not due to an O2 sensor.

A long crank time could be a fuel pump. You will need to check the fuel pressure at the fuel rail when starting; needs to be 45+ psi if I recall. Could have a dirty fuel injector, suggest adding some Techron to the fuel tank next fill up.

When was the last tuneup? The 3.3l is plugs, wires and a 6 terminal coil pack (that can go bad occasionally) if I recall. Could be corrosion on the coil pack terminals.

 

that looks like the connector that goes to the H block for the AC system it will go back to where the ac lines go into a silver block.