Would be just a bit of work to find it in the maze of hoses and tubes that are on the engine. A lean O2 code does not always mean the sensor is bad, but that the reading the computer is getting is out of normal range. If no response is observed, the O2 sensor should be replaced. Variations of greater than 10-percent in either direction will result in a stored code and an illuminated malfunction indicator lamp. P2197 Description The Engine Control Module uses the heated oxygen sensor information to regulate the air-fuel ratio close to a stoichiometric ratio. I need help figuring out what has caused the problem. Cracked Vacuum Line to Throttle Body On the passenger side of the throttle body a plastic line connects to a rubber boot to the throttle body.
It detects the amount of oxygen in the exhaust gas compared to the outside air. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing. I tend not to want to use my phone for that stuff, but they are cool and very inexpensive. Now don't ask yourself; What should you do with P2197 code? So you should chech it on our car models. A lean air fuel mixture can burn valves, cause overheating, damage cylinder walls and or pistons as well as blow head gaskets. You will need to remove this cover to get to most of the problem areas. The sensor element is made of platinum coated zirconia and includes an inte- grated heating element.
. The mechanic will need to monitor the O2 sensor data on a scanner. Most any scanner would also do the job. The symptoms were the car was running oddly rough at idle, and it started to shake, but would drive just fine. The first thing I would do would be check the heater circuit.
It took me 30 minutes to replace. For this reason, O2 sensors in position one are one of the primary sensors used to calculate air fuel mixture. This heats up the oxygen quicker and allows it to operate in the correct amount of time. This enables the them to create monitoring software specific to their systems. My three catalyst converters had to be replaced.
The cracked hose or is it a coupler? Jul 22, 2010 Here it goes. There are other component failures that can and do set codes such as this. But I can't find the specifics here. It all started when I put on a SuperChip tuned for performance and a Throttle body spacer. In normal operation the signal from the O2 sensors should swing back and forth between rich and lean.
Replacing the O2 sensor and or fixing a vacuum leak are the easy fixes. Expedition Engine Compartment Popping the hood on the Expedition and this is what you see. Unfortunately, this is usually discovered after a new O2 sensor is installed. Your sensors are locked on lean. You should see it switch between. If your spark plugs look good, problems with your ignition system can also preventing a spark. You should also check that the spark plug gap is set properly.
What are the symptoms of the P2197 code? A thorough understanding of the systems that can set this code is required to effectively track down the failure. Spark plugs typically need to be replaced every season or 25 hours of use. You will have ground, and 12V+ to the 02 sensor heater line on a cold start. Cracked Vacuum Coupling This is the fitting. The solution is here : Ford Edge P2197 Possible Solution : Disconnected, dirty or fouled spark plugs are common causes for engines that won't start.
Hopefully it will tell me what's really going on. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Common Misdiagnosis Technicians report replacement of oxygen sensors, when lean or rich engine conditions are the cause of incorrect readings, is fairly common. This code is most commonly caused by a vacuum leak, but can just as easily be a faulty O2 sensor. If this possibility exists, the check engine light will flash continuously and the vehicle should not be driven.
As propane is introduced, the mechanic should see a reaction from the O2 sensor indicating a richer air fuel mixture has been introduced. Water in a spray bottle can also be used to find cracked hoses just listen for the idle change. Fortunately, this is a rare occurrence but it can happen. Scanned codes were P0051 and P2197. If a vacuum leak is discovered, it should be repaired, the code should be cleared and the vehicle should be test driven to confirm the repair. Oxygen Sensor Bank 2 Sensor 1 needs to be replaced. If you need a low cost Engine Scanner and have a Cell Phone Andrioid or Apple take a look at some of the low cost options that use wireless and your phone to scan and reset codes.