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Reset codes for evap leak - 1998 Mercedes-Benz C-Class

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I have DTC Codes; P0441, P0442, and P0446 EVAP codes. Have had too many things replaced to name and still have codes. Originally, only had one code P0442, after the unsuccessful removal of severalevap

code p 0442 refers to evaporative emission(EVAP) system---small leak detected====causes--hose connections--intake leak--EVAP canister--EVAP canister purge valve
it also refers to --large leak detected====causes fuel cap loose, off---mechanical fault--hose connections---EVAP pressure sensor
code p 0441 refers to EVAP system--incorrect flow detected====causes hoses, intake leak-- EVAP canister purge valve
code p 0446 refers to EVAP system, vent control---circuit malfunction===causes--wiring---EVAP canister purge valve----ECM
if you can remember when the problem started ( after refueling) it may be that the cap is not fitted correctly
it could that in the fixing process , the wiring has not been correctly installed or the problem is the canister purge valve needs attention

Feb 06, 2017 | Cars & Trucks

1 Answer

What is a P2404 code mean from a suzuki sx4

Trouble Code: P2404 (2.0L L4 VIN 5 Automatic CVT)
Evaporative Emission System Leak Detection Pump Sense Circuit Range / Performance
Number of Trips to Set Code: 1
Trouble Code Conditions:
EVAP vent valve stuck open: EVAP leak check pressure is lower than -0.14 kPa even if EVAP vent valve is operated from OFF (OPEN) to ON (CLOSE) with EVAP leak detection pump ON. EVAP vent valve stuck closed: EVAP leak check pressure is unstable (difference between maximum and minimum is 0.36 kPa or more) when EVAP vent valve is OFF (OPEN) with EVAP leak detection pump ON. EVAP leak detection pump stuck OFF: EVAP leak check pressure is higher than -0.14 kPa even if EVAP leak detection pump is ON. EVAP leak detection pump flow high: Reference pressure of EVAP leak check pressure is lower than specified value (depending on BARO) EVAP leak detection pump flow Low: Reference pressure of EVAP leak check pressure is higher than specified value (depending on BARO).
Possible Causes:
  • EVAP leak detection pump (in EVAP leak check module) and/or its circuit
  • EVAP vent valve (in EVAP leak check module) and/or its circuit
  • EVAP leak check module and/or its circuit
  • ECM

Jul 11, 2014 | 2010 Suzuki SX4

1 Answer

Engine codes p0440,p0441

code po440 refers to evaporative emission (EVAP) system--malfunction ===causes --hose connections --intake leak--EVAP canister purge valve
code p0441 refers to EVAP system--incorrect flow detected===causes---hose connections --intake leak--EVAP canister purge valve.
once you fix the fault use a scanner to reset the engine light.

Apr 09, 2014 | 2005 Chrysler Town and Country

1 Answer

I went to AutoZone and got one of them free check with the code PO456 A Evap system very small leak detected. How do you think I should go about it?

id avoid the zone. but lucky for you, P0xxx codes they can handle.
P1xxx, P2xxx, or more they lie.
99% bad gas cap, or just loose.
tighten the cap, reset the codes, (bingo gone, you and millions of others) use scan tool to reset, or it takes bloody forever ....
if the cap is bad, replace it. if not?
the EVAP tests are complex. no car year stated. sadly.
the first test is the pressure leak down test, got shop Air.
i bet not.
if not, then look for cracked hoses. (fuel vent hoses)
Bty all shops can do the leak down test, and all smog stations
this is the 1st test off the line, EVAP leak down tests.
its a low tech test, easy but most dont even want to try.

here is the 1st google hit,

Oct 02, 2013 | Honda Cars & Trucks

1 Answer

I got a check engine code P0455 AND P0171 on my 2003 volkswagen jetta. My car runs fine usually at idle, but if you start driving, you can only push it half throttle before it starts studdering. What

Trouble Code: P0171

Fuel System Too Lean (Cylinder Bank 1)
Possible Causes:

Air leaks after the MAF sensor, or leaks in the PCV system Exhaust leaks before or near where the HO2S is mounted Fuel injector(s) restricted or not supplying enough fuel. Fuel pump not supplying enough fuel during high fuel demand conditions. Leaking EGR gasket, or leaking EGR valve diaphragm. MAF sensor dirty (causes ECM to underestimate airflow). Vehicle running out of fuel or engine oil dip stick not seated .

Trouble Code: P0455

EVAP Control System Large Leak Detected
Possible Causes:

Aftermarket EVAP hardware non-conforming to specifications EVAP canister tube, EVAP canister purge outlet tube or EVAP return tube disconnected or cracked, or canister is damaged EVAP canister purge valve stuck closed, or canister damaged. Fuel filler cap missing, loose (not tightened) or the wrong part. Loose fuel vapor hose/tube connections to EVAP components . Canister vent (CV) solenoid stuck open. Fuel tank pressure (FTP) sensor has failed mechanically .Here are the solutions.

Aug 09, 2012 | Cars & Trucks

1 Answer

How do i check for a evap leak on my car?

P0440 is the evap canister purge valve,first ck all evap hose connections if all are ok change valve. if that dont fix it you may have a intake manifold leak.

Aug 01, 2012 | 1999 Oldsmobile Alero

2 Answers

Obd code p0457 fuel cap replaced mil reset defect not cleared connection checked ok

The code is for a large leak in the EVAP system such as a loose or missing gas cap. But it could also mean a loose or missing hose to the canister or other leak in the tank.
The computer vents the tank several times an hour while the engine is running, and it checks the system by pressurizing the gas tank. If the tank will not hold pressure the code is set.
You may have to check the top of the tank where the fuel pump gasket is, as well as the vent lines to the front of the car.
A mechanic would perform a smoke test to look for leaks.

Jul 23, 2012 | Honda Accord Cars & Trucks

2 Answers

P0455 P0442 codes 2001 dodge ram 1500

P0442 Means you have a small leak in your EVAP system. P0455 is a large leak.
The EVAP system prevents gas vapors from entering the air .
This code can be set by a leak in the lines or a clogged charcoal canister.
Most common reason is If you did not put your gas cap on all the way.
Hope this helps
Leave feedback please
thank you FixYa

Nov 20, 2010 | 2001 Dodge Ram 1500 Truck 2WD

1 Answer

Engine code 0456 ( evaportive emission control system leak detected, very small leak ) installed a new OEM gas cap and reset the computer. Worked fine for 1 1/2 week and check engine code came back? Cleand...

It's a leak in your evap system. Causes: *Loose or missing fuel cap. *Evap canister broke, hose cracked or not connected. *Purge or vent solenoid defective *Vacuum leak at engine good luck

Mar 08, 2010 | 2003 Chrysler Town & Country

2 Answers

Mil comes on and has a code of p442. what does that mean

It means you have a leak in the EVAP system. Most likely the hoses near the charcoal canister. Check the EVAP hoses for cracks, and replace as necessary.

Jun 03, 2009 | 2003 Dodge Dakota Club Cab

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