02 wrx small evap leak and all 4 misfires

Asked by May 16, 2016 at 05:00 PM about the 2002 Subaru Impreza WRX Base

Question type: Maintenance & Repair

I have a 02 wrx with 2 small evap leak codes and
all 4 cylinder  misfire codes. I have a cold air intake
up pipe down pipe and full exhaust. Everything is
catless. And a act clutch and light fly wheel. It
seems to be running just fine tho. Am I chasing a
gost? I've look at and tried just about everything.
Where can I hook up my smoke machine to test
the evap system?

3 Answers

12,385

What about the misfires does it pull smooth? the misfires can be per 100 revolutions of the crank what are the codes "generic" or a real scan tool are you reading the Data in real time? these issues shouldn't take to long to locate. Car seems very close to stock have you checked fuel trims?

71,305

P0300 SUBARU - Random Cylinder Misfire Detected.... Possible causes - Faulty spark plug (s) - Faulty ignition coil (s) - Clogged or faulty fuel injector (s) - Intake air leak - Fuel injectors harness is open or shorted - Fuel Injectors circuit poor electrical connection - Ignition coils harness is open or shorted - Ignition coils circuit poor electrical connection - Insufficient cylinders compression - Incorrect fuel pressure... The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are common caused of multi-cylinder misfiring. If no leak are found the next step is to replace the spark plugs. If the problem persist more tests needs to be done to diagnose problem,............................P0442 SUBARU - Evaporative Emission Control System Malfunction... Possible causes - Missing or loose fuel cap - Incorrect fuel filler cap used - Fuel filler cap remains open or fails to close - Foreign matter caught in fuel filler cap - EVAP canister or fuel tank leaks - EVAP system hose leaking - Fuel tank leaking... The P0442 code means that the control module has detected a small leak in the Evaporative Emission (EVAP). Loose fuel tank filler cap is the most common cause that triggers the P0442 code.

i used to get misfire codes all the time, about 2-3 hours of driving would turn on cel after resetting. i changed from a lightened flywheel back to a stock flywheel and now havent got the code again in sevral thousand miles..

Your Answer

Add photo

Related Questions

  • 02 wrx small evap leak and all 4 misfires 3 answers

    I have a 02 wrx with 2 small evap leak codes and all 4 cylinder misfire codes. I have a cold air intake up pipe down pipe and full exhaust. Everything is catless. And a act clutch and light fly wh...

    2002 Subaru Impreza WRX Base

    -

    Maintenance & Repair

  • All 4 cylinder misfires 1 answer

    I have a 2003 wrx sedan, manual trans. I read the codes and it came back with 4 cylinder misfires, I changed the spark plugs to see if it would solve the issue. Before I did this the engine was a b...

    2003 Subaru Impreza WRX Base

    -

    Maintenance & Repair

  • What kind of struts and springs should I replace on 02 wrx wagon 1 answer

    Need to buy need struts and springs for my daily driver 02 wrx wagon. I don't really or race, I do zip around corners and mob over bumps though so I was curious what kind of struts and springs to ...

    2002 Subaru Impreza WRX Wagon

    -

    Maintenance & Repair

  • HELP WITH A ISSUE WITH MY 02 WRX 4 answers

    Hope someone can help I have a 02 WRX and when I go to put the car in drive It will either go into drive slow or not at all..Sometimes I have to rev the gas and it will bang into drive with such force...

    2002 Subaru Impreza WRX Base

    -

    Maintenance & Repair

  • Wrx accessport 1 answer

    So I purchased a v3 accessport for my 2006 wrx. It had a protune which made the car run great. But for some reason I had to screw around with other tunes and now it's not running good, I was hoping...

    2006 Subaru Impreza WRX Base

    -

    Maintenance & Repair

Impreza WRX

Looking for a Used Impreza WRX in your area?

CarGurus has 1,276 nationwide Impreza WRX listings starting at $3,000.

ZIP:

Search Subaru Impreza WRX Questions

Subaru Impreza WRX Experts

#1 Cole Kramer
Cole Kramer
Reputation 280
#2 Ryan Lyle
Ryan Lyle
Reputation 160
#3 John5766
John5766
Reputation 140
View All

Related Models For Sale

Used Subaru Impreza
202 Great Deals out of 19,395 listings starting at $1,995
Used Mitsubishi Lancer Evolution
17 Great Deals out of 495 listings starting at $13,998
Used Honda Civic
809 Great Deals out of 88,112 listings starting at $1,299
Used Ford Mustang
541 Great Deals out of 45,846 listings starting at $1,999
Used BMW 3 Series
945 Great Deals out of 30,262 listings starting at $1,000
Used Volkswagen GTI
99 Great Deals out of 7,260 listings starting at $2,400
Used Subaru Legacy
224 Great Deals out of 14,432 listings starting at $999
Used Nissan 350Z
52 Great Deals out of 1,206 listings starting at $2,899
Used Ford Focus
634 Great Deals out of 57,259 listings starting at $795
Used BMW M3
50 Great Deals out of 1,361 listings starting at $3,800

Used Cars For Sale

2014 Subaru Impreza WRX Base For Sale
67 listings starting at $17,759
2013 Subaru Impreza WRX Base For Sale
4 Great Deals out of 78 listings starting at $16,995
2012 Subaru Impreza WRX Base For Sale
41 listings starting at $14,677
2011 Subaru Impreza WRX Base For Sale
50 listings starting at $11,995
2010 Subaru Impreza WRX Base For Sale
2 listings starting at $16,000

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.