Car Driving Rough (misfiring)

[Sojhinn]

Bad picture new one is correct

[steve99]

Originally Posted by Sojhinn

-3.12 for stft


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if the AFR is close to 14.7 and stft is pretty stead at -3 looks ok.


although with a single o2 sensor your either measuring the average of all four cylinders on some headers or a single cylinder on others due placement.


so its possible you could have a dodgy injector on one cylinder


does the car drive ok now ??

[Sojhinn]

Originally Posted by steve99

if the AFR is close to 14.7 and stft is pretty stead at -3 looks ok.


although with a single o2 sensor your either measuring the average of all four cylinders on some headers or a single cylinder on others due placement.


so its possible you could have a dodgy injector on one cylinder


does the car drive ok now ??

Just got another misfire message on cylinder 3. Think it's the injector? Running like crap.


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[Sojhinn]

I'd buy an injector right now... Any recommendations?

Went to subie dealer and they weee out of stock.

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[steve99]

Originally Posted by Sojhinn

I'd buy an injector right now... Any recommendations?

Went to subie dealer and they weee out of stock.

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might also be bad spark plug


Plenty of turbo guys would have stock port injectors lying around


maybe also any tune shops that do brz/86 work


or car wreckers

[Sojhinn]

Originally Posted by steve99

might also be bad spark plug


Plenty of turbo guys would have stock port injectors lying around


maybe also any tune shops that do brz/86 work


or car wreckers

I heard replacing the spark plugs is a pain... I'll take a look at the install.


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[Sojhinn]

Also @steve99 I owe you a beer for your help.


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[humfrz]

Originally Posted by steve99

............

....... for being so helpful.




humfrz

[Sojhinn]

Originally Posted by humfrz

....... for being so helpful.









humfrz

In two weeks going to be living in WA.


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[guybo]

If you just throw parts at this problem, you won't figure out what's wrong AND you'll waste a lot of money. Do yourself a favor- go to a garage and have them diagnose the issue and you do the work to replace the parts. You have no clue what may or may not be the issue and you have no way to properly test the good parts you are throwing away.

You need to test the parts before you replace them.

You'll run out of money before you run out of guesses.

[steve99]

Originally Posted by guybo

If you just throw parts at this problem, you won't figure out what's wrong AND you'll waste a lot of money. Do yourself a favor- go to a garage and have them diagnose the issue and you do the work to replace the parts. You have no clue what may or may not be the issue and you have no way to properly test the good parts you are throwing away.

You need to test the parts before you replace them.

You'll run out of money before you run out of guesses.

Unfortunately most "shops" wont understand modified cars with Flex kits Electric superchargers on E85 with custom tunes. They will just blame the mods or tell you to go somewhere else.


Coil pack is logical choice for misfire Cyl 3 indication
unfortunately it can be direct/port injector or wiring or spark plugs. But shop is going to go through a lot of labour charge to swap out these, not many are going to have facilities to test injectors . and they have to pull them anyways. Difficult when its intermittent problem.

[humfrz]

Originally Posted by Sojhinn

In two weeks going to be living in WA.


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Where in Washington .... ??

In two weeks ....... you will be exposed to the sunshine till about November ..... then you won't see it again till about next May.

Are you in the military .. ??

I hope you get your car fixed before you come up here ....... these cowboys up here, just love to run over little cars that stall ......


humfrz

[Sojhinn]

Originally Posted by guybo

If you just throw parts at this problem, you won't figure out what's wrong AND you'll waste a lot of money. Do yourself a favor- go to a garage and have them diagnose the issue and you do the work to replace the parts. You have no clue what may or may not be the issue and you have no way to properly test the good parts you are throwing away.

You need to test the parts before you replace them.

You'll run out of money before you run out of guesses.

I actually took the car this morning to the dealership. They refused to work on the car due to the mods. So Im stuck either finding a shop for Monday or trying to repair it myself. I have done all the work on my car myself, and I don't mind trying to fix it. I'm pretty sure we narrowed down the issue, and I'll post here when it gets fixed.

If the port injector doesn't work, I plan on finding a shop near by to fix it.

My biggest issue is the short time frame. I have to be driving to WA on August 12.

[Sojhinn]

Originally Posted by humfrz

Where in Washington .... ??

In two weeks ....... you will be exposed to the sunshine till about November ..... then you won't see it again till about next May.

Are you in the military .. ??

I hope you get your car fixed before you come up here ....... these cowboys up here, just love to run over little cars that stall ......


humfrz

Moving to Renton Highlands, working as a teacher in Lake Washington.