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Follow these steps to retrieve the fault code from your Hyundai. Turn the ignition off. Connect your OBD-II scanner into the OBD-2 port under the dashboard on the driver's side. Note: Even a $20 generic OBD-2 scanner can retrieve check engine / ECU Hyundai fault codes. Those are P-codes in the Hyundai list below. Sep 12, 2010 · P0420 Code solutions. Any topics related to 2005-2012 R51. Moderator: volvite. 3 posts • Page 1 of 1. ... Maybe check if you have a pending code that clears, perhaps.
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Apr 01, 2010 · P0420 Catalyst system efficiency below threshold (Bank 1) P0420 (pending) Catalyst system efficiency below threshold (Bank 1) I should also mention that for the past couple of months it has been extremely difficult to put gas in the car, with the gas pump shutting off every 10-30 seconds. I do not see the 16804/P0420 DTC in the 'Current DTC ' screen, BUT it is found in the 'Pending DTC ' screen. IIRC, a DTC will be pending until there are a certain number of instances, after which it will be a 'Current DTC ' and illuminate the MIL. So, the MIL appears to be illuminated because of the 18613/P2181 not the 16804/P0420.
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A P0420 diagnostic trouble code is a "generic" fault code that is set when the Onboard Diagnostic II (OBD II) catalyst monitor detects a drop in converter efficiency. The OBD II system monitors catalyst efficiency by comparing the switching activity of the upstream and downstream oxygen sensors in the exhaust. Pending DTCs . These are DTCs that were out of parameter once, but need to be out of parameter again before the MIL light comes on. Sometimes the problem was just a glitch, sometimes it’s something more serious. The important thing to understand is the cause of the pending DTC needs to be investigated further. Permanent DTCs
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What does it mean by sending Error Code P0420 The definition of the OBD-II P0420 code is " Catalyst System Efficiency Below Threshold (Bank 1) ". When the ECU stores this code, it means that the catalytic converter is not operating at maximum efficiency and may need replacement. Car fault code: P0420
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Apr 01, 2010 · P0420 Catalyst system efficiency below threshold (Bank 1) P0420 (pending) Catalyst system efficiency below threshold (Bank 1) I should also mention that for the past couple of months it has been extremely difficult to put gas in the car, with the gas pump shutting off every 10-30 seconds.
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Mar 26, 2018 · OBDII Code P0420 - Catalyst System Efficiency Below Threshold Bank 1 | Nissanhelp.com. Bank 1 refers to cylinder 1. So locate where cyl. 1 side exhaust that leads to your Cat. OBDII Code P0430 - Catalyst System Efficiency Below Threshold Bank 2 | Nissanhelp.com. Bank 2 refers to Cyl. 2 opposite side of Cyl. 1. Jan 13, 2012 · Pending Fault P2181 - Powertrain Cooling System Performance I got the catalytic converter replaced maybe 5 or 6 months ago and the garage that did it said they would try to save the O2 sensors. It seemed like they were successful but the MIL came on a few weeks later. I assumed it was the O2 sensor and the P0420 fault seems to back that up.
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Get definitions for diagnostic trouble codes. Find the help you need to repair your vehicle. Skip to main content . Free Shipping. Free Returns. 1-866-302-0054; 24/7 ... So, with the code scanner, I had 5 codes. the P0420/P0430, a P0452, and the P0420/P0430 Pendings. Cleared the computer and took the truck for a drive. Of course, the light came back on, but when I ran the scanner, it found 4 codes. P0420/P0430 and the P0420/P0430 pending. So I am now thinking that the problem is just those sensors being bad.
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I replaced one 02 sensor, the P0051 cleared, a few days later, the 0420 code matured into a DTC, then another 0420 pending code showed up. So, I paid the mechanic $120 +35+17 for the diagnostic fees, e-test and re-test and he gave me a quote for $1240 for a cat replacement. With the quote, I can have a conditional pass and I am good to go.
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Oct 03, 2012 · I tried erasing the code and driving my Vibe for a while. I wanted to see if P0420 code was a code related to the P0301. Nothing has changed. As of now, when I drive my Vibe for about 15 minutes the light comes as P0420P. P0420P means as you know that there is a pending P0420 and that the CEL will come on in any moment. Apr 07, 2013 · In 2011 I had the toyota dealer replace the ECM. The next day the p0420 came back and this time toyota said I needed a new cat. I got a 2 year emmissions waiver and chose not to replace the cat. My emissions is coming up again and the p0420 is still active (plus 1 p0420 pending). No other codes are present.
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Hi I have a Toyota tacoma 2001 built in the uS. 3400 cc, V6 I got pending trouble code P0420 re cat converter operating below efficiency threshold. I I 12-21-04 07:04 AM - Post# 580062 Well, playing with my AutoEnginuity yesterday I discovered I had a pending trouble code P0161 O2 sensor heater circuit. Sep 22, 2011 · The code is thrown when the post-cat o2 sensors voltage begins to vary, much like the 2 sensors before the cat. With a functioning cat, the voltage should be steady, with no variation. When the voltage begins to vary due to unburnt fuel in the exhaust, it throws a P0420.
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3. Follow scan tool manufacturer's operating instructions to access the Diagnostic Trouble Codes (DTC's). Remember, these are manufacturer specific codes only. Refer to our Generic OBD II code list for definitions on all other Pontiac diagnostic trouble codes. Manufacturer Specific Codes. P1031 HO2S Heater Current Monitor Control Circuit Sensors 1 I replaced one 02 sensor, the P0051 cleared, a few days later, the 0420 code matured into a DTC, then another 0420 pending code showed up. So, I paid the mechanic $120 +35+17 for the diagnostic fees, e-test and re-test and he gave me a quote for $1240 for a cat replacement. With the quote, I can have a conditional pass and I am good to go.
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This is a list of Mercedes-Benz specific Diagnostic Trouble Codes (DTC) or also known as engine fault codes. Please note that there are Check Engine / Service Engine / CEL fault codes which are stored in the Engine Control Unit (ECU). These codes can be read and erased with a simple OBD2 code reader, listed under yellow column below. It had a P0136 code stored yesterday along with the P0420 so I swapped the rear sensor again this morning. Currently the P0136 and the pending P0420 along with the freeze frame data are clear. It has a P0420 still stored, but the MIL is off. I’m hoping that’ll clear out after another drive tomorrow. Sent from my iPhone using Tapatalk
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Apr 15, 2013 · OBD II trouble code P0420 Catalyst Efficiency Below Threshold (Bank 1) is the code that let's you know that the catalytic converter on your 2.2L/2.3L Honda is not cleaning the exhaust of pollution like it should. On my Actron scanner DTC P0420 shows up as a pending code. From what I understand the SES/CEL MIL illuminates if the PCM detects the above malfunction conditions in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
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Some codes may be captured and put into a pending state, which means that the computer is waiting to see if it happens again. If it happens again soon enough, then the light will stay on, and then the code is called a "current" code. It's the OBD system's way of dealing with a one-time event that may or may not be a big deal.
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Follow these steps to retrieve the fault code from your Hyundai. Turn the ignition off. Connect your OBD-II scanner into the OBD-2 port under the dashboard on the driver's side. Note: Even a $20 generic OBD-2 scanner can retrieve check engine / ECU Hyundai fault codes. Those are P-codes in the Hyundai list below.