![]() Obviously, carb cleaner is super flammable. ![]() When the spot is found the engine will rev higher with no throttle input. ![]() A common method is to spray carb cleaner around the intake/vacuum lines. You can test for a vacuum leak around the vacuum lines and the intake manifold. When this happens, it creates a lean condition. Often a worn or brittle vacuum line will allow unmetered air into the engine. A quick visual inspection can often tell you if there is something wrong, but not in the way the use of a multimeter will. You can use a multimeter to check for any short or open circuits at the wiring harness. If the code remains P2197, you’ll need to continue pursuing your diagnosis, knowing that both O2 sensors are working fine.If the code changes to P2195 (which indicates the O2 sensor on Bank 1 is stuck lean), that is enough proof that you need a new O2 sensor.Run the engine until the check engine light comes back on.It’ll be on or right after the exhaust manifold. Swap the Bank 2 Sensor 1 O2 sensor with the Bank 1 Sensor 1.You just swap the bank 1 and bank 2 oxygens sensors. Since your Spectra has a V6, V8, or V10 engine, there are two banks (one for each head), which means you can do the swap test to determine if the bank 2 sensor 1 oxygen sensor is bad. While this isn’t a skill most DIY mechanics have, the concept is simple, and you can learn enough to use fuel trim to your advantage by watching this 11 minute video (it’s worth it). You’ll need to make sure that the engine is warmed up before you do this.ĭoing this will help you determine if the O2 sensor is operating within spec without having to do any looking under the hood. If you happen to have access to a scan tool, you can use it to capture the short and long term fuel trim values. Capture the Short/Long Term Fuel Trim Values Here are some diagnostic steps that you can use to diagnose this code from home. If there is too much exhaust that is allowed to leave, it’ll show up as a lean condition. Exhaust Leak– An exhaust leak allows the exhaust to exit somewhere other than the tailpipes.Fuel System– A bad fuel injector or the wrong fuel pressure can cause P2197.Vacuum Leak– A vacuum leak allows UNMETERED air to enter into the combustion chamber, changing the air/fuel mixture.When they go bad, it may force the air/fuel mixture to lean out, which in turn can throw P2197. Bad Sensor– The PCM relies on the MAF, ECT, A/F sensors to help it adjust the air/fuel ratio.It gets more exposure to the elements and heat, which can lead to an open/short situation. The wiring that goes to all of the O2 sensors is some of the most error prone on any vehicle, including the Kia Spectra. Oxygen Sensor– The B2S1 oxygen sensor could be bad, or the wiring going to/from it could have issues.Often, the check engine light will be the only symptom. The symptoms associated with P2197 can be varied. You will need to know how to find bank 2, which you can do by clicking here. It is most typically caused by a bad O2 sensor, but there can A LOT of issues that can cause this code. P2197 is not a manufacturer specific code, which means it has the same basic meaning for any vehicle. The voltage reading from a normal oxygen sensor should look something like a heartbeat, whereas with P2197 the voltage looks like a low voltage flatline). P2197 is a general DTC code that indicates that the signal coming from your Kia Spectra’s first O2 sensor on the bank two side of the engine is stuck giving off a lean signal.
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