Rich mixtures and MAF sensor
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Rich mixtures and MAF sensor
My car seems to be running rich for some reason. I heard from a few people that it is just characteristic of all WRXs, but I am not sure. I dont think the MAF sensor is the problem, but it sure is dirty. What should I use to clean it? I was looking at using Chemtool or Carb cleaner, just because it will melt the buildup on it and evaporate quickly, but I also thought it may harm the sensor by being too harsh of a solvent. Either that or just melt the hell out of the plastic casing.
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I dont have an AFC or anything, so there are no actual numbers telling me if I am running rich or not. I do have a BOV and an HKS Power intake installed (mushroom shaped foam filter one). The exhaust just smells really "gassy", and when I stomp the pedal, the engine seems to get choked out, almost like a hesitation. Changing plugs helped it a bit, and I dont run crappy gas, so I dont have any idea what it is. I just noticed there was a nice oily buildup on the inside of my intake near the MAF sensor. Thought that might be the problem.
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From: Reno, NV
Car Info: 1993/2000/2001 GF4 mostly red
Originally posted by ride5000
clean the maf.
brake cleaner, in a bag, with the maf, shake it around.
jm2c
ken
clean the maf.
brake cleaner, in a bag, with the maf, shake it around.
jm2c
ken
https://www.i-club.com/forums/showth...ight=clean+maf
Originally posted by amnzamudio
I dont have an AFC or anything, so there are no actual numbers telling me if I am running rich or not. I do have a BOV and an HKS Power intake installed (mushroom shaped foam filter one). The exhaust just smells really "gassy", and when I stomp the pedal, the engine seems to get choked out, almost like a hesitation. Changing plugs helped it a bit, and I dont run crappy gas, so I dont have any idea what it is. I just noticed there was a nice oily buildup on the inside of my intake near the MAF sensor. Thought that might be the problem.
I dont have an AFC or anything, so there are no actual numbers telling me if I am running rich or not. I do have a BOV and an HKS Power intake installed (mushroom shaped foam filter one). The exhaust just smells really "gassy", and when I stomp the pedal, the engine seems to get choked out, almost like a hesitation. Changing plugs helped it a bit, and I dont run crappy gas, so I dont have any idea what it is. I just noticed there was a nice oily buildup on the inside of my intake near the MAF sensor. Thought that might be the problem.
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Thanks! I was actually thinking about using brake cleaner until I saw it take the paint off of my friends painted front brake calipers. Makes sense though since it evaporates quickly. Ill give it a shot.
Is the oily buildup normal? This car is a 93' so I imagine it has never been cleaned, so for 11 years of running, I guess its not so bad. Just strange there is oil in the intake. Sucks to think that buildup is in my turbo and intercooler, though.
Is the oily buildup normal? This car is a 93' so I imagine it has never been cleaned, so for 11 years of running, I guess its not so bad. Just strange there is oil in the intake. Sucks to think that buildup is in my turbo and intercooler, though.
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Maybe its not such a good idea to use brake cleaner....
The Gunk Non-Chlorinated brake cleaner label specifically states to not use it on plastic or rubber, and to flush with water if you have accidental overspray. I dont want to clean the sensor just to end up flushing it with water to save the plastic and have deposits left on it after it dries.
"Behind every caution, note or warning, there is somebody who has messed something up trying it before."
-Annonymous Mechanic
The Gunk Non-Chlorinated brake cleaner label specifically states to not use it on plastic or rubber, and to flush with water if you have accidental overspray. I dont want to clean the sensor just to end up flushing it with water to save the plastic and have deposits left on it after it dries.
"Behind every caution, note or warning, there is somebody who has messed something up trying it before."
-Annonymous Mechanic
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