P0420 code dodge journey

We recommend Torque Pro. When the engine is started cold, both O2 sensors should produce the same voltage.

So I got the P code. I have a 2. I've replaced both O2 sensors, new plugs, filter, cleaned the throttle body and almost every sensor in the car. Any ideas before I spend the money for a new cat? What kind of driving do you do and what other CEL codes have you had in the recent past with the J?

P0420 code dodge journey

OBD Code P is an extremely common indicator of an issue with the operating efficiency of your Dodge Journey's catalytic converter, so it's letting you know by flipping on the check engine light hopefully before you fail an emissions test. This code basically means that the engine's O2 sensors associated with your Dodge Journey's Catalytic Converter have informed the electronic control unit ECU that the catalytic converter isn't doing its job well enough or perhaps at all. If the catalytic converter isn't working like it should, your engine will let off more pollution than is legal — a P code almost assuredly means that you'll fail an annual emissions test, so you don't have much choice but to get this fixed if you want to drive legally. Note: If your vehicle has a dual exhaust system, this code will indicate that the issue is with the first engine bank, i. On dual-exhaust vehicles, you might see code PO instead, representing the second bank. On most vehicles, however — this code indicates a problem with either or both bank s. At this point, the front sensor should be registering varying levels of O2 in the exhaust while the back sensor should be reading fairly stable levels, because the converter "normalizes" the exhaust as it flows through the catalyst. You may experience a very slight reduction in engine power from reduced exhaust flow, as well. There's also the possiblity that you failed an solenoid-style emissions test from excess pollutants in the tailpipe or failed an OBD-based emissions test. Regardless, you need to get this one fixed, especially if your annual smog check deadline is coming up or is here. This is a potentially costly repair — catalytic converters contain valuable metals like platinum, which means that the part itself is expensive — as much as thousands of dollars depending on your vehicle. What's more, the labor involved can run into the four figures too.

Any ideas before I spend the money for a new cat?

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This page is meant to help you troubleshoot the Dodge Journey P trouble code. A failing oxygen sensor or bad catalytic converter are the most common causes of P Catalyst system efficiency is the percentage of these chemicals removed from the exhaust system. Oxygen sensors measure these pollutants. When the readings from the upstream and downstream oxygen sensors show similar readings not enough pollutants expelled from the exhaust , your vehicle will throw the service engine soon light P This can happen for three reasons:. You can ignore this section if your Journey has an inline engine or if the exhaust manifolds merge into one pipe before the catalytic converter. Typically, the first cylinder is closer to the front of the engine. The bank 2 version of this code is P

P0420 code dodge journey

P is a well-recognized error code within the automotive industry, notorious for its persistence. Luckily, this article is designed to guide you through understanding the implications of this error code, exploring its possible causes, and navigating potential fixes. Drawing on our experience, we acknowledge that resolving P can be challenging without appropriate knowledge.

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When the engine is started cold, both O2 sensors should produce the same voltage. We recommend letting a pro install these, but if you're dead-set on doing it yourself, pick up a mid-range or high-end universal option instead of going the OEM route. Where is the P sensor located? Always remember, check the engine for any type of misfire, as this will lead to premature catalytic converter failure. Low cost aftermarket alternatives may need to be replaced before the end of their warranty. We recommend Torque Pro. There's also the possiblity that you failed an solenoid-style emissions test from excess pollutants in the tailpipe or failed an OBD-based emissions test. Any ideas before I spend the money for a new cat? The downstream O2 sensor voltage should not switch as fast. On dual-exhaust vehicles, you might see code PO instead, representing the second bank. It won't fix your issue, of course, but it'll temporarily "mute" them. The O2 sensors are bosch.

OBD Code P is an extremely common indicator of an issue with the operating efficiency of your Dodge Journey's catalytic converter, so it's letting you know by flipping on the check engine light hopefully before you fail an emissions test. This code basically means that the engine's O2 sensors associated with your Dodge Journey's Catalytic Converter have informed the electronic control unit ECU that the catalytic converter isn't doing its job well enough or perhaps at all.

This stable downstream O2 sensor voltage is due to the catalytic converter slowly releasing oxygen into the exhaust stream as it is being utilized. Typically, the causes for this code to set are: Most common: Failed Catalytic Converter Oxygen sensor — Downstream O2 sensor signal circuit voltage shorted to power or ground, failed O2 sensor Contributing Factors Fuel system components — including injectors and fuel quality Worn ignition system components, to include the coil, plug wires, spark plugs, etc. This is our favorite choice for a universal replacement cat. Specific to Chrysler products, these are the more common issues with the Catalyst System Efficiency Below Threshold Bank 1 fault code:. Skip to content. What kind of driving do you do and what other CEL codes have you had in the recent past with the J? Upload or insert images from URL. Notify of. Reply to this topic It won't fix your issue, of course, but it'll temporarily "mute" them. Insert image from URL. No other codes, not running bad, not doing anything other then the P code. This is a potentially costly repair — catalytic converters contain valuable metals like platinum, which means that the part itself is expensive — as much as thousands of dollars depending on your vehicle. OBD Code P is an extremely common indicator of an issue with the operating efficiency of your Dodge Journey's catalytic converter, so it's letting you know by flipping on the check engine light hopefully before you fail an emissions test.