Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

d16y7 gas found in intake manifold

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Old Dec 7, 2018 | 04:52 PM
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Default d16y7 gas found in intake manifold

While chasing a few other issues (poor gas mileage and high fuel trim) I found small puddle of gas sitting in the bottom of my intake manifold. Could this be an injector issue or something else? Everything is stock on the car, Y7 automatic. 208,000 miles
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Old Dec 7, 2018 | 05:17 PM
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Default Re: d16y7 gas found in intake manifold

Sounds like you have an injector leaking, and based on your spark plug pic I’d go with the cylinder that had the dark plug
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Old Dec 7, 2018 | 05:36 PM
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Default Re: d16y7 gas found in intake manifold

Is it worth trying to clean the injector out? Maybe changing cylinders then to see if it keeps doing the same thing?
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Old Dec 7, 2018 | 05:37 PM
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Default Re: d16y7 gas found in intake manifold

At minimum you could spend the money to have all the injectors cleaned, or just replace them.
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Old Dec 8, 2018 | 05:44 PM
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Default Re: d16y7 gas found in intake manifold

Can anyone confirm if its across the board that all 99 y7's came from factory with green tipped injectors? Mine has brown tipped which I believe are higher flow. I'm planning to switch back to the green tips after cleaning a set up I got from the junkyard.
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Old Dec 8, 2018 | 07:27 PM
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Default Re: d16y7 gas found in intake manifold

190cc. do not know color
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Old Dec 9, 2018 | 01:15 PM
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Default Re: d16y7 gas found in intake manifold

So I'm just wanting to confirm once more with more info before I take the time to install these

I believe these were out of a 98, I know for sure it was a d16y7 though. Keihin injectors with 6KK5 printed on one side of the injector. I couldn't find any info on them other than those numbers and that they have a green tip. I'm not home to see what the current injectors in my car are, but I'll post when I see those.
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Old Dec 9, 2018 | 06:04 PM
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Default Re: d16y7 gas found in intake manifold

as long as it was a y7, you're good.
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Old Dec 11, 2018 | 08:02 AM
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Default Re: d16y7 gas found in intake manifold

Injectors went in nice. Here is a picture of my #4 plug after about 200 miles. The black looks wet in the picture, but is completely dry like soot. I have no idea how to read plugs, so what would be causing this?
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Old Dec 14, 2018 | 06:44 AM
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Default Re: d16y7 gas found in intake manifold

Anyone able to help in reading the spark plug for me?
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Old Dec 14, 2018 | 07:41 AM
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Default Re: d16y7 gas found in intake manifold

https://www.aa1car.com/library/spark_plug_fouling.htm
https://i.pinimg.com/originals/30/3e...fb21169bfa.jpg
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