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Old 07-12-2009, 01:18 AM   #1
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Default Will a WB O2 show a dirty injector?

Just wondering about my injectors. I had some 1.8 inj laying around and don't really know if the are dirty and flowing 100%

I am now running the Greddy with these 1.8's.

Lets say that hypothetically one of them is partially clogged or whatever. Will the WB show an issue like this or a similar one?

Thanks
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Old 07-12-2009, 01:31 AM   #2
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A WB only gives you a picture of the overall AFR in the motor. If you have one leaky injector your motor might show a little lean when you were tuning. You would have increased fuel to make up for it. So in effect you would have 3 rich cylinders and 1 lean one. Classic failure.

You would have to have a wb on each cylinder to really tell.

Could you give more information on what is occuring to make you think this might be happening?
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Old 07-12-2009, 07:37 AM   #3
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Thanks Neogenesis,

I don't really think there is a problem, I am probably just being paranoid. But I am just a bit concerned as these 1.8 inj came from my old car that had about 260000kms on it. Now that I am boosting I really hope that they are all flowing at 100%
I am debating to soak my old 1.6 inj in carb cleaner or seafoam or something else for a couple days and then take the 1.8s out and do the same with them.

Any ideas on cleaning my own injectors?

Thanks again
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Old 07-12-2009, 08:08 AM   #4
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for the low price and peace of mind, I'd send 'm out to get cleaned...
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Old 07-12-2009, 11:33 AM   #5
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what the O2 will show you is that if you're running closed loop with a leaky injector, your AFRs might be close to correct but the car will run like ****
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Old 07-13-2009, 03:47 PM   #6
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A dirty injector will usually show up as a misfire, if you install them.
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