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Topic Just be aware of the possibility the "tune" may not address the misfires... |
Re: My First check engine light MarcW - 7 years ago |
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Ed fromTampa ( formerly Long Island)
The car is almost 12 years old with 47,000 miles so perhaps I'm due. It's never had a major service, just the fluid type of stuff - I was waiting till it hit 50,000 miles for the major service.
I was driving by an AutoZone on my way home after the light came on and I dropped in to get their free diagnostic check. The error codes came back P0300 Random misfire detected in Cylinders 1.2 and 3. So my first thoughts are plugs and/or coils - but here's the puzzling part:
The car is running as smooth now as it did when it was new! No rough idle, it pulls strong and hard through the entire rev band - it doesn't exhibit any of the symptoms I'd expect with fouled plugs or cracked coils!
Can it be the AutoZone equipment is just a POS and it's really something else that caused the CEL
Thanks,
Ed
Thanks Ed fromTampa ( formerly Long Island) - 7 years ago |
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Ed fromTampa ( formerly Long Island)
It's past due for a major tune, so it's probably best I get it done.
Re: Just be aware of the possibility the "tune" may not address the misfires... Ed fromTampa ( formerly Long Island) - 7 years ago |
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Ed fromTampa ( formerly Long Island)
Marc, the car has rarely been out in the rain and never out in the snow! And since the issue is limited to one bank I'm inclined to agree with JM. I'm still not confident that the AutoZone reading is accurate. I'm bringing it to a "real" mechanic who's got the corrrect equipment on Monday - we'll see what he says!
Re: I also dont see how one can get a code, but have it be wrong. Ed fromTampa ( formerly Long Island) - 7 years ago |
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grant
The code is the code, and an error would likely return nothing or garbage.
I suspect that your car is made because you keep it shut in during the winter and when its wet, and is getting its revenge :-)
thoughts- fouled plugs (how?), poor gas (why not all cyl?), coils (they do fail),
I'd so some sleuthing and ask "what is common to one bank but not the other"? Cam timing for one.
G
Which codes exactly? Boxsterra - 7 years ago |
Re: Which codes exactly? Ed fromTampa ( formerly Long Island) - 7 years ago |
That looks like all one bank. JM-Stamford,CT - 7 years ago |
Agreed, much less likely plugs and coils Boxsterra - 7 years ago |
Re: My First check engine light CarreraLicious - 7 years ago |
*NM* Ed fromTampa ( formerly Long Island) - 7 years ago |
And the verdict is...... Ed fromTampa ( formerly Long Island) - 7 years ago |
Re: And the verdict is...... MarcW - 7 years ago |
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Ed fromTampa ( formerly Long Island)
It's fine!
The initial review did show the faults but once they were cleared they did not reappear. Fuel mixture was fine, no leaks, tensioner OK, coils & plugs OK,. belts and hoses OK. Bottom line, the car is running fine!
I'm replacing the plugs since it's time; having a 4 wheel alignment (it's a bit off, but nothing major); Oil & Filter; and brake fluid flush and it should be good for another "few" years. I think it just wanted some attention.
Thanks to all for your thoughts on the issue.
Best,
Ed
Re: And the verdict is...... algiorda - 7 years ago |