New computer engine control

15

Asked by Eli Jan 30, 2017 at 03:26 PM about the 2009 Toyota Corolla Base

Question type: Maintenance & Repair

Why does my car keep misfiring after I installed a
brand new computer. Once I rev it out it starts
shaking again.

6 Answers

Did you deal with other ignition components like the spark plugs and coils? Is the CEL on?

1 people found this helpful.
Best Answer Mark helpful
15

My mechanic had said there was a misfire on cylinder 1 and 4 which caused injector 4 to go out as well.. supposedly all this happened because the computer wasnt working right in the first place..and they also said when they checked the spark plugs they found some type of liquid on them?? I need help

Liquid on the plugs. Oil or anti-freeze? There is no relationship from the injectors to the spark plugs and there is no way I know of that a misfire could make an injector go bad.

1 people found this helpful.
15

Oil..and they said there was a green wire from the computer that didnt have ground and thats what caused the injector to go bad..sorry for the misinformation

If they fixed the ground then you can cross that off your list. If you have oil on the plugs then your engine probably has high miles and is using oil. If they install hotter plugs then the oil should burn off and not foul the plugs which could get you a few more miles out of the engine. How many Miles on the engine?

1 people found this helpful.

Your Answer:

Corolla

Looking for a Used Corolla in your area?

CarGurus has 24,251 nationwide Corolla listings starting at $1,322.

ZIP:

Own this car?

Share your experience with others.

2009 Toyota Corolla

Review another car

CarGurus Experts

  • #1
    Jeff Polhemus
    Reputation
    3,350
  • #2
    Gene Arnett
    Reputation
    3,270
  • #3
    hashimmir
    Reputation
    2,500
View All

Know more, shop wisely

Search

Related Models For Sale

Used Toyota Camry
2,106 Great Deals out of 37,845 listings starting at $700
Used Honda Civic
1,312 Great Deals out of 29,694 listings starting at $1,571
Used Honda Accord
1,450 Great Deals out of 29,485 listings starting at $1,000
Used Toyota RAV4
1,931 Great Deals out of 28,762 listings starting at $2,950
Used Toyota Tacoma
1,771 Great Deals out of 29,757 listings starting at $3,700
Used Honda CR-V
2,039 Great Deals out of 40,502 listings starting at $1,499
Used Toyota Prius
483 Great Deals out of 6,866 listings starting at $2,500
Used Hyundai Elantra
923 Great Deals out of 25,773 listings starting at $1,500
Used Nissan Sentra
856 Great Deals out of 42,241 listings starting at $1,970
Used Mazda MAZDA3
482 Great Deals out of 11,935 listings starting at $800
Used Toyota Yaris
60 Great Deals out of 695 listings starting at $2,120
Used Toyota 4Runner
1,083 Great Deals out of 18,849 listings starting at $3,352

Used Cars for Sale

2024 Toyota Corolla For Sale
31 Great Deals out of 6,772 listings starting at $19,880
2023 Toyota Corolla For Sale
177 Great Deals out of 2,173 listings starting at $16,494
2022 Toyota Corolla For Sale
206 Great Deals out of 2,419 listings starting at $14,200
2021 Toyota Corolla For Sale
299 Great Deals out of 3,847 listings starting at $9,500
2020 Toyota Corolla For Sale
139 Great Deals out of 1,838 listings starting at $10,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.