what secondary reason is there for coils to misfire?

Asked by Jun 02, 2015 at 06:16 PM about the 2002 Toyota Celica GT

Question type: Maintenance & Repair

I have a Toyota Celica and i have changed all four ignition coils and i have already
changed my valve cover gasket and my check engine light is still on and not only that i
have ran the codes and it states that all four of my ignition coils are misfiring. I was
recommend to change my valve cover gasket asap but i have already done that, so my
question is what else can the cause be for my ignition coils to misfire?

3 Answers

20,715

Replacing all coils isn't a solution to random misfires on all cylinders. Your valve cover has even less to do with it. Suspect are the spark plugs, cam sensor, cranks sensor, mass air flow, or a fuel pressure problem. Start with the plugs if you haven't yet

20,715

I take the valve cover thing back, if oil is getting into the tube the plugs go into it can cause a misfire

I got a new valve cover gasket and new spark plugs. The spark plugs were really bad. I also had my ignition coils cleaned from the oil and it is running better I only have one code showing at the moment. The catalytic converter needs to be changed now and then I'm golden. Thank you so much for your help!

Your Answer

Celica

Looking for a Used Celica in your area?

CarGurus has 288 nationwide Celica listings starting at $1,984.

ZIP:

Toyota Celica Experts

  • #1
    dandyoun
    Reputation
    630
  • #2
    tenspeed
    Reputation
    410
  • #3
    joedynamo
    Reputation
    330
View All

Related Models For Sale

Used Toyota Corolla
888 Great Deals out of 69,845 listings starting at $1,479
Used Honda Civic
573 Great Deals out of 52,763 listings starting at $1,500
Used Ford Mustang
337 Great Deals out of 42,082 listings starting at $1,488
Used Toyota Camry
1,072 Great Deals out of 76,710 listings starting at $1,100
Used Nissan 350Z
25 Great Deals out of 1,137 listings starting at $3,495
Used Toyota Tacoma
540 Great Deals out of 41,032 listings starting at $2,500
Used Mitsubishi Eclipse
17 Great Deals out of 1,064 listings starting at $1,500
Used Honda Civic Coupe
165 Great Deals out of 10,896 listings starting at $1,800
Used Honda Accord
838 Great Deals out of 87,587 listings starting at $1,444
Used Acura RSX
6 Great Deals out of 385 listings starting at $2,200
Used Mazda MX-5 Miata
58 Great Deals out of 4,067 listings starting at $2,088
Used Chevrolet Camaro
385 Great Deals out of 31,360 listings starting at $3,495
Used Toyota MR2 Spyder
4 Great Deals out of 109 listings starting at $3,999

Used Cars For Sale

2005 Toyota Celica GT For Sale
13 listings starting at $2,900
2004 Toyota Celica GT For Sale
12 listings starting at $2,995
2002 Toyota Celica GT For Sale
30 listings starting at $1,995

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.