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

16,855

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

16,855

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

Add photo

Related Questions

Celica

Looking for a Used Celica in your area?

CarGurus has 383 nationwide Celica listings starting at $2,119.

ZIP:

Search Toyota Celica Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Toyota Celica Experts

#1 dandyoun
dandyoun
Reputation 580
#2 FordNut
FordNut
Reputation 480
#3 tenspeed
tenspeed
Reputation 370
View All

Related Models For Sale

Used Toyota Corolla
1,082 Great Deals out of 64,191 listings starting at $1,595
Used Honda Civic
937 Great Deals out of 68,324 listings starting at $1,500
Used Ford Mustang
580 Great Deals out of 41,215 listings starting at $1,699
Used Toyota Camry
1,199 Great Deals out of 93,146 listings starting at $700
Used Honda Civic Coupe
266 Great Deals out of 18,123 listings starting at $1,500
Used Mitsubishi Eclipse
57 Great Deals out of 1,494 listings starting at $2,000
Used Toyota Tacoma
714 Great Deals out of 32,123 listings starting at $2,000
Used Acura RSX
22 Great Deals out of 538 listings starting at $1,199
Used Nissan 350Z
80 Great Deals out of 1,505 listings starting at $3,490
Used Chevrolet Camaro
475 Great Deals out of 39,917 listings starting at $3,499
Used Toyota MR2 Spyder
5 Great Deals out of 152 listings starting at $3,900
Used Honda Accord
1,084 Great Deals out of 76,819 listings starting at $1,395

Used Cars For Sale

2005 Toyota Celica GT For Sale
18 listings starting at $3,495
2004 Toyota Celica GT For Sale
21 listings starting at $3,900
2003 Toyota Celica GT For Sale
38 listings starting at $2,500