Question about Kia Rio

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Swapped out tranny with a used one after a leak in the pump plate sprung, burning up the gears....running fine now, but, evap and catalyst monitors won't re-set, cannot get inspected, engine running very rich, according to DMV tech who came out to see the car..... car seems to be running fine. 149,000 miles on engine, cleaned out the mass airflow sensor, filters are good, is there anything typical of these cars that cause this issue? What do you suggest?

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  • dmkolpack Apr 06, 2011

    will try, but the monitor won't reset, the computer is reporting running super rich, and
    won't reset until that problem is solved...... there are no fault codes currently reporting.....
    was looking to see if there is something typical with these cars that causes this...... i.e.- bad injector, fuel pressure sensor, etc.

    thanks

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  • Master
  • 456 Answers

Hi.
first make sure that there are no plugs that have been disconnected of disturbed during the transmission work

if it is just a matter of resetting the monitors, then disconnecting the battery -ve clamp for 1/2 hour should work especially if you turn the ignition key on to position II AFTER the clamp has been disconnected and remove the key BEFORE reconnecting.

the car may take 100miles or so before the management system readjusts properly, and you will need to make sure you have the radio code as this will need resetting as well.

if any faults still come up, you will need to have a computer diagnostic done to make sure that none of the sensors have been damaged.

these would then need replacing.
please feel free to contact me again if the problem persists, or if you need to find out fault codes from a computer diagnostic

Posted on Apr 06, 2011

  • paul miles Apr 06, 2011

    nothing springs to mind with kia's

    the only thing that would cause an engine to run that rich without showing a fault code would be a clogged air filter, or a blockage on the air intake.
    almost anything else would give a fault code of some description.

    the only thing to try is to UNplug each sensor in turn and see if there is one sensor that does not make the car worse when unplugged.

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1 Answer

2000 Town Car - 3 codes (P0307 - I believe misfire on #7) but P0430 & P0442 I don't know


P0430 - Catalyst System Efficiency Below Threshold (Bank 2) Indicates Bank 2 catalyst system efficiency is below the acceptable threshold.
  • Use of leaded fuel
  • Damaged HO2S
  • Malfunctioning ECT
  • High fuel pressure
  • Damaged exhaust manifold
  • Damaged catalytic converter
  • Oil contamination
  • Cylinder misfiring
  • Downstream HO2S wires improperly connected
  • Damaged exhaust system pipe
  • Damaged muffler/tailpipe assembly
  • Retarded spark timing
Compare HO2S upstream & downstream switch rate. Under normal closed loop fuel conditions, high efficiency catalysts have oxygen storage which makes the switching frequency of the downstream HO2S quite slow compared to the upstream HO2S. As catalyst efficiency deteriorates, its ability to store oxygen declines and the downstream HO2S signal begins to switch more rapidly approaching the switching rate of the upstream HO2S. Once beyond an acceptable limit the DTC is set. Catalytic converter bad !


P0442 - EVAP Control System Leak Detected (Small Leak) The PCM monitors the complete EVAP control system for presence of a small fuel vapor leak. The system failure occurs when a fuel vapor leak from an opening as small as 1.016 mm (0.04 inch) is detected by the EVAP running loss monitor test.
  • After-market EVAP hardware (such as fuel filler cap) non-conforming to required specifications
  • Small holes or cuts in fuel vapor hoses/tubes
  • Canister vent solenoid stays partially open on closed command
  • Damaged, cross-threaded or loosely installed fuel filler cap
  • Loose fuel vapor hose/tube connections to EVAP system components
  • EVAP system component seals leaking (EVAP canister purge valve, fuel tank pressure sensor, canister vent solenoid, fuel vapor control valve tube assembly or fuel vapor vent valve assembly)
EVAP Leaks P0442 and P0455

May 27, 2017 | Lincoln Town Car Cars & Trucks

1 Answer

I just did a tranny swap on a 96 Ford f-150 4.9ltr with od tranny after changing the fluid and filter I started the truck and placed it in gear and the tranny would not engage how do I fix this?


Did you run the trans through the gears after putting in half the fluid and the add until full or just dump it in and try to go??
your torque converter may be air locked if you did not refilled properly, and can burn out very quickly

Mar 21, 2015 | Ford F-150 Cars & Trucks

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I recently reset the obdII error codes on my 2002 Kia Sedona after replacing the 3 ignition coils and plugs and wires to eliminate a problem with primary and secondary ignition coil circuit. Need to k


Replacing Spark Plugs & Ignition Coils
does not require any clearing of codes

You have 8 monitors on most vehicles

5 Monitors do not run all at one time

If the Catalyst fails when it does run, then you
may have not replaced the front O2 Sensors
at 100,000 or one failed
Have to use professional scan tool to look at data
& see if the I/M Monitors have run

The Evap is the last to run & there is no info avail
as to when it runs, as far as I know

The Evap will run once or twice a week-maybe

The cat should run by 50 miles of driving or a couple
hours run time

From 2002 until now-- I doubt the converter has much life left,
but the monitor will still run.

Look at scan tool misfire on Mode $06,O2 Data,Fuel Trim
and such, after a road test of 25 miles,then component test
anything not as it should be.

If you keep using your code reader to clear DATA- forget the codes,then your monitors,freeze frame & such are gone,thus your current situation.

Feb 28, 2014 | Cars & Trucks

1 Answer

Code p0455 & p0422


Hi there:

DTC P0422 - Main Catalyst Efficiency Below Threshold (Bank 1)
A vehicles' catalytic converter (catalyst) helps improve tailpipe emissions by oxygenating the exhaust gasses. It helps convert hydrocarbons (HC), Carbon Monoxide (CO), and oxides of Nitrogen (NOx) into water vapor (H20), Carbon Dioxide (CO2), and Nitrogen (N).

The PCM (Powertrain control module) monitors the catalyst efficiency by means of a post-catalyst Oxygen sensor. This sensor is used primarily for this purpose. It should switch much slower than the front oxygen sensors. If at any point the PCM detects that the post-catalyst o2 sensor is switching too rapidly (indicating no change between the inlet and outlet of the catalytic converter) it interprets this as a catalyst that isn't functioning properly.

Bank 2 is the side of the engine that has cylinder #1.


Symptoms of a P0422 DTC may include:
Increased tailpipe emissions
MIL (Malfunction Indicator Lamp) illumination


Potential causes of a P0422 code include:
Bad or non-functional catalyst
Engine operating out of optimal air:fuel ratio

Possible Solutions:
Catalytic converters contain precious metals like platinum, palladium, rhodium among others. Basically, the cheaper the cat, the less precious metals used. It should be noted that there are some automobile makes that are very finicky when it comes to catalytic converters and the logic that the PCM uses to monitor them. Just because the parts guy says it will work doesn't mean that it will. The reason is that the engineering of the vehicle was done with a high quality catalyst in mind and it can't be replaced with a low cost catalyst. There are also different kinds of catalysts. Some makes will allow for a cheaper catalyst while others simply will not. Toyotas & Subarus are the most notorious for this. Subarus require CARB certified catalysts to keep the check engine light off and won't tolerate an aftermarket catalyst, no matter how expensive.

So basically if you have a recurrence of this code after replacing the catalyst with an aftermarket catalyst, this may be your problem. If you have this code and haven't replaced the cat, there's basically two likely causes: The catalyst is no good, or the engine is running out of optimal air:fuel ratio. A tune up or engine repair may correct it. Otherwise you'll need to replace the catalyst.


DTC P0455 - Evaporative Emission Control System Leak Detected (no purge flow or large leak)
This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

A code p0455 most likely means one or more of the following has happened:
A loose or improperly affixed gas cap
A non-conforming gas cap (i.e. not factory/original brand)
Other leak or damaged piece in EVAP system

Possible Solutions: with a p0455, the most common repair is to:
Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.
Otherwise, replace the gas cap, and/or
Inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

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1 Answer

What is the diagnostic codes P 0700 P1684 p0442 p0455 p0456 on a 2001 dodge Caravan with a 3 3"


P0700: EATX Controller DTC present
P1684: Battery was desconnected
P0442: EVAP leak monitor medium (.040). Leak detected.
P0455:
EVAP leak monitor large. Leak detected.
P0456: EVAP leak monitor small (.020). Leak detected.

I suggest check the lines and flow it down to the ldp (leak detection pump) that is just behind the steering gear under the van It has a wire connector and 2 large EVAP hoses. look for any split or crack then follow the lines back to the tank. Even a small crack is a leak.

Hope helped with this. Remember rated this help. Good luck.


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1 Answer

The engine light is on in my 2001 Chrysler Concorde. Pulled the code: P0456 came up. Any ideas?


Evaporative Emissions System - Small leak detected

The Powertrain Control Module
(PCM) at different times performs various tests on the EVAP system. OBD II Enhanced EVAP systems are in place to keep fuel tank
vapors from venting into the atmosphere, and instead purges them into the engine to be burned. Regular pressure tests are conducted by the PCM to monitor the sealed system for leaks. The PCM monitors the EVAP system pressure by watching the Fuel tank pressure sensor (FTP). When the sensor indicates a small leak in the EVAP system, this code is set.

Usually this P0456 code is caused by an incorrect or faulty gas cap. Filling the fuel tank with the engine running could conceivable cause this code as well or if the cap wasn't properly tightened. Any of the following could also be the cause:
· A small leak in any of the EVAP hoses or fuel tank hoses
· A small leak in the purge valve or vent valve
· The EVAP Canister may be leaking

Possible Solutions
First, using a scan tool activate the vent solenoid, sealing the system. Then monitor the fuel tank pressure (FTP) sensor. If the system is sealing properly, the number will stay consistent. If is isn't, the pressure sensor will show that as well. If the system slowly leaks, use a smoke machine and watch for smoke exiting the system at any EVAP component. Any where there is smoke exiting the system, that is the faulty component. Do not pressurize the EVAP system with air pressure. Doing so can damage the purge and vent solenoids in the system.

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1 Answer

Clutch or pressure plate bad


1. If it is maintaining a gear when you try to start it in gear = Pressure Plate is fine. Don't do this too much as it can blow the gear in the starter. Just do it momentarily to test it. If you start it in gear and the motor fails to turn you can be reassured your clutch is fine if you had no slipping issues before.
2. If pedal went down and stays down = Check fluid levels for the clutch master. This has a return spring in the master so it should return on its own even if it has sprung a leak.
3. If fluid level is up = Linkage has possibly come off or actuator has come off at the fulcrum in the bell housing.

If this has come apart at the actuator arm this may or may not be accessible with the transmission installed for inspection. Look for an exploded view of this assembly and it will give you a better idea of what is happening. If it has come lose at the actuator fulcrum arm the transmission will have to be removed to service the failed part. The actuator arm or failed master is consistent with your hard shifting issues prior to failure.

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2 Answers

Which is it? Carburetor ice or water in gas?


Hmmm.. Your van has No carburator.. Its direct multiport fuel injection.. It sounds like you have excessive moisture in the tank and lines.. Id try a new fuel filter..

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