mx5med

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

Caoboy

mx5med

Is it worth trying to clean the injector out? Maybe changing cylinders then to see if it keeps doing the same thing?

Caoboy

mx5med

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.

eghatch9295

iTrader: (1)

190cc. do not know color

mx5med

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.

eghatch9295

iTrader: (1)

as long as it was a y7, you're good.

mx5med

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?

mx5med

Anyone able to help in reading the spark plug for me?

eghatch9295

iTrader: (1)

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