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Upstream o2 sensor bank 1

Kia sedona 2003 lx didnt pass smog code p0421 where is this sensor on the minivan

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

warlock61
  • 659 Answers

SOURCE: more 99 cougar problems

there is a fuse for the o2 heaters if one of the sensors blew the fuse they will all be out

Posted on Mar 01, 2009

  • 112 Answers

SOURCE: 2002 Pontac Grand Prix GTP P0171 code engine stumbling at times

Bank 1 is the frt side exhaust manifold (did they say bank 1 sensor 1?),you can start by replacing that sensor,i would check the intake for leaks ,the gm 6cly. are known for bad intake gaskets,you will see oil coming out form the frt or rear of the intake,also check your atifreeze overflow bottle for bronwish sludge,which means that the oil is mixing with the antifreeze.A leaking intake could cause that lean condition.

Posted on Mar 29, 2009

techbuster
  • 5081 Answers

SOURCE: I have a P0171 to lean bank 1 error code

oxygen sensor, vacuum leak, and yes it could most definitly be if you swaped the wires of the firing order accidently you will get a code p0171 Check the tubing going from the air filter to the intake manifold to see if it has come loose. This might account for extra air going into the intake manifold than the computer is aware of. Otherwise it may be due to a faulty(or dirty) MAP/MAF sensor. Another possible cause is from low fuel pressure due to restricted fuel lines or a bad fuel pump.

Posted on Jul 28, 2009

SOURCE: Getting PO141 trouble code when scanning! Car '03 accord, 2.4 ltr

i spoke to a honda tech , and he confirmed code p0141 on the 4cylinder model is the second sensor.

Posted on Aug 28, 2009

  • 36 Answers

SOURCE: p0155 error code

Bank2 sensor 1 is the driver side top or precat sensor.
The code is for the heater circuit of the sensor

Posted on Oct 18, 2009

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1 Answer

My 2003 kia sedona won't pass emissions the codes are p0320 p0431. Help please


code p 0320 refers to crankshaft position(CKP) sensor /engine speed ( RPM) sensor ---circuit malfunction===causes --wiring---CKP/RPM sensor---ECM
code p 04310 refers to warm up catalytic converter, bank 2--efficiency below threshold===causes ---cat converter---wiring---HO2S 2
As it is not passing the smog test I would be replacing the HO2S sensor ( manifold or before the cat on bank 2 of the engine ) or more likely a failed cat converter
you may have had the P 0320 code for a long time and have not noticed a drop in performance but as cat converters have a lot to do with smog control , that is the area I would advise checking first

Jan 16, 2016 | Kia Cars & Trucks

1 Answer

Location of bank 2 sensor 1 on a kia Sedona 2005 lx


left side of exaust after catalictic converter

Oct 27, 2014 | 2005 Kia Sedona

1 Answer

Wont pass smog emission


DISCONNECT THE NEGATIVE CABLE AT THE BATTERY,THEN WAIT FIVE MINUTES THEN RECONNECT,WHAT HAPPPEN?

Mar 25, 2014 | 2007 Kia Sedona LX Minivan

1 Answer

2003 kia sedona lx didnt pass smog code p0421


P0421 Warm Up Catalyst Efficiency Below Threshold (Bank 1)
____________-
Can Clip Renault

Apr 28, 2013 | Kia Sedona Cars & Trucks

1 Answer

How to fix 2004 Kia Sedona with codes p0421 and p0431 I need help with these codes van will not pass inspection and thank you with any help in advance


The code 421 is a problem with the catalytic converter or O2 sensors on bank one. Under normal conditions the front and rear sensors should be giving different readings back to the computer and they are more or less the same.
Code 431 is the same thing for bank two.
Unless you find a big exhaust leak, I doubt this is something you can fix yourself. You would need a scanner to watch the readings coming from the O2 sensors and the engine temp among other things to be able to determine the cause or causes.

Jan 04, 2013 | Cars & Trucks

1 Answer

Will not pass smog code p0421 what is this


A code P0421 may mean that one or more of the following has happened:
  • The catalytic converter is no longer functioning properly
  • An oxygen sensor is not reading (functioning) properly
  • A sparkplug is fouled up
Possible SolutionsMeasure the voltage at the oxygen sensor on Bank 1 (the rear sensor, or the sensor after the converter). In fact, it would be a good idea to test each oxygen O2 sensormag-glass_10x10.gif while you're at it.

Feb 27, 2011 | Mitsubishi Lancer Cars & Trucks

1 Answer

03 santa fe code p0421 for warm up catalyst below bank 1is it converter sensors whats bank 1 converter location compared to bank 2 is there 2 banks or converters would it be upstream or downstream if it...


If the engine is a V6 (2.7 or 3.5 lit), bank 1 is next to the firewall (right hand) when facing the back of the engine.
If the engine is a 4 cly (I4), there is only one bank and is designated Bank 1 (exhaust manifold).

The catalyst to which the code refers is the UPSTREAM, and there is only ONE upstream cat for any bank.

Clue: Two upstream O2 sensor and two downstream O2 sensors - one before the CAT and one after the CAT. the downstream O2 sensors are identical to their upstream sisters. The only reason for the DOWNstream sensor is to monitor the CAT efficiency (threshold).

The catalyst on either bank is essentially the exhaust manifold which houses the CAT... it is the only CAT to which the code P0421 applies.

Hope that helped

Feb 06, 2011 | Hyundai Santa Fe Cars & Trucks

2 Answers

Hi, I need to take my 2001 Mazda 626 4cyln for SMOG check in CA. But its check engine light is on, diagnosed as code P0421. Appreciate your help to fix this problem, or just to pass the check. Thank you.


CODE P0421. DEFINITION-CATALYST EFFICIENCY LOW-BANK 1. EXPLANATION-THE OXYGEN SENSORS MONITOR THE CATALYTIC CONVERTERS ABILITY TO STORE OXYGEN. PROBLEM CAUSES- 1. CATALYTIC CONVERTER DEFECTIVE (FAILURE POSSIBLY DUE TO #2,3, OR 4) 2. ENGINE MISFIRE OR RUNNING CONDITION. 3. LARGE VACCUM LEAK 4. ENGINE OIL LEAKAGE INTO EXHAUST-VALVE GUIDE SEALS, PISTON RINGS. THE PCM HAS DETERMINED THAT THE WARM UP CATALYST EFFICIENCY FOR BANK 1 IS BELOW TRESHOLD FOR THE CURRENT ENGINE OPERATING CONDITION. (BANK 1 IDENTIFIES THE LOCATION OF CYLINDER #1, WHILE BANK 2 IDENTIFIES THE CYLINDERS ON THE OPPOSITE BANK).

replace O2 sensors, or your Catalytic Converter.

Oct 06, 2010 | Mazda 626 Cars & Trucks

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