P0455 OBD Engine Code Logo   Code #P0455 -
Evaporative Emission Control System Leak Detected (gross leak)

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Mazda Miata
Ah yes, the P0455 error code. I had my Miata for a month on my 38k mile 2000 LS and I was like, what the F! My check engine light is on! Did I get screwed over by the previous owner? I then bought a code reader since my wife's Infiniti also had its check engine light on. It read P0455. What's the cause? The gas cap. Yup, the gas cap. If you don't tighten the gas cap till at least a few clicks about half way through the gas tank it'll loosen enough to trigger the check engine light. More than likely if you have a Miata, that's the issue.


Jeep Wrangler
Light came on four days ago. Car starts, runs perfectly. No vibrations, no shaking and no other issues. The only thing ive noticed is reduced gas milage and the light will not go off with the replacement of the gas cap


Mazda MX-5 Miata
I was worried check my Check Engine light came on after I changed the plugs in my 2000 Miata LS but after I checked the code, it was P0455 and I was relieved that it was just the silly gas cap again!


Chevrolet Monte Carlo
gross air leak code came up ,replaced the purge valve and the gas cap.i then reset the computer by disconnecting the negative term with the key on.The light turned back on last night.there is no decrease in fuel mileage or erratic idle The engine is a non super charged 3.8.


The engine check light came on. Car seems to be running ok. We haven't done anything yet to fix it.

Mitsubishi Montero Sport
Two weeks ago light came on. Car starts fine and there is no vibration. And the car idles fine. And I have already checked the gas cap.


Mazda Tribute
I replaced all parts for emissions ? 280,000.00 miles still strong just cel light keeps turning on can't pass emissions test


Mitsubishi Montero Sport
P0084 engine code


Volkswagen Jetta
code 1626


Chevrolet Express Cargo
5.3 l engine, 73,000 miles error P00455 Engine runs fine. tightened gas cap. No effect. Guy at AP store says it is bigger leak than gas cap.


Mercury Mariner
engine light on ---code P0455


Hyundai Sonata
v6 3.3


Mercury Mountaineer
check engine light is on and a loss of fuel mileage


p0451

gas cap wasn't on tight

Mazda Mazda5
Gas cap wasn't on tight on a very hot day. Tightened cap, cleared code, seems fine now.


thrtottle pedal postion sensor

Gas cap was change.

Suzuki Forenza
#1.i change the gas cap.


Mercury Mountaineer
P0455


smart fortwo Pure
Gas cap gasket mis-seated part way down threads


Dodge Ram 150
P00455


Mazda 2
P0949 and the motor does not start ..what should i make now ? change the Computer of the gearbox oder what else ?


Code p0024

Luz check enginek

Suzuki Aerio
Codigo P0455


01 chrysler 300m..changed gas cap no help checked charcol canster..looks good ..looked for cracked hoses no luck ..they say to drop the gas tank and look at hoses up there ...

service engine stays on

service engine stays on

gross leak

Nissan Frontier
Evaporated emission control system leak detected gross leak I have not fix it yet


i have replace the fuel pump

the light has been on for about 2 months, car stats, some vibrations, idles low

Ford F-250
wont start, p0455 p0457 and p0153 codes are showing


Mitsubishi Montero
i had cel last week.went to my mechanic and said i had p0455 code.tried to replace my old gas cap for anew one but cel still there.i also experience a little vibration while idling


large leak

Kia Sephia
CAR IS HARD TO START THE CAR WILL CRANK AND CRANK AND THEN FINALLY START


Nothing yet. Trying to figure that out now by looking at all these other people's problems with this code.

I'm looking for help myself.

Nissan Frontier
check ingine light come on.


Dodge Neon
really good help


Dodge Neon
good help


Suzuki Forenza
2005, code P0455


sensor high input

Cadillac Escalade
high input


This website is great 7c7677aa30694ac171d85a066b71fe09

Mazda Mazdaspeed MX-5 Miata
THE CODE I PULLED IS P0455


This website is great fc9a05cb9ec65ebaa3139557e1caae11

Codigo po455

gas cap replacement

Pontiac G6
replaced gas cap


p0455

Hyundai Sonata
p0455


Suzuki Aerio
Cordero 455


smart fortwo Pure
P0455 and P0497 came on at the same time. The little rubber seal at the bottom of the threads of the cap wasn't seated all the way at the bottom of the cap. A slight adjustment after a wash down of the rubber gasket cleared the issue. I reset the code with my ultra gauge, and presto! problem gone! I was getting about 43mpg with the code - kinda wondering if my mileage will improve now that there's no code. Good luck!


Hyundai Santa Fe
como reparar este codigo de error...gracias


Suzuki XL7
Po455


Mercury Grand Marquis
P0455 PROBLEM


Ford Escape
p-0455


Chevrolet Malibu Maxx
Evap emissions system leak... gross leak detected No flow. Confirmed


looked for leek found none

Pontiac Grand Prix
checked gas cap and checked for leek


light is on .on symptoms

Chevrolet Equinox
car starts


Hyundai Santa Fe
que significa el codigo p0455 y como corregir


check engine light on

P0455

nisan ques code i have proglen emision

Cadillac DTS
check engine light: code P0455


Car runs perfectly. Air filter and MAF system is very clean.. gas cap looks & locks good. 67 k miles

Replaced Ignition Misfire Sensor,was bad.Acceleration causes jerky/hesitation.Will run ok once up to speed.Gets worse longer driven.Codes after this are: P0401,P0455,P0303. 2004 Sonata 4cyl 2.4



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Does your Car Start?
Does your Car Vibrate? Shake?
Does your Car Idle Roughly? Reduced Power?

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Other Comments

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P0421 Mitsubishi Eclipse
p0421


P0882 wont change gears

P0942 Alfa Romeo 159
Me aparece error y no se que es


P0513 Jeep Liberty
engine startet and go for 3 secs and staled,tried again, and same thing,now no go,had skim module replaced,and 2 news keys,(problem fixed)skim module part # 56053020ag




Other Check Engine Light Codes

P0051   HO2S Heater Control Circuit Low (Bank 2 Sensor 1)
P0252   Injection Pump Fuel Metering Control 'A' Range/Performance (Cam/Rotor/Injector)
P0337   Crankshaft Position Sensor A Circuit Low Input
P0726   Engine Speed Input Circuit Range/Performance
P0746   Pressure Control Solenoid 'A' Performance or Stuck Off
P0757   Shift Solenoid 'B' Stuck On
P0758   Shift Solenoid 'B' Electrical
P0798   Pressure Control Solenoid 'C' Electrical
P0873   Transmission Fluid Pressure Sensor/Switch "C" circuit High
P0929   Gear Shift Lock Solenoid Control Circuit Range/Performance




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