430 Oil overfill F430

I am curious, did you end up extracting or cleaning the intake or did this oil eventually ingest and get burned. Was there any damage from this overfill?

 

Best not to go more than 1/2 way between the low and full marks on the dipstick with engine running and oil in the 85 to 90 C temp.
Any oil in the air flow meter or the throttle body- i understand you need a special cleaner for these, not standard degreaser spray

 

I keep mine at the bottom of the line since by the time I get the car into the garage, it's cooled down a bit. With all the oil in the system, overfilling is the main danger.

As for cleaning after overfilling, the MAF should be considered toast but the throat of the throttle body should be easily cleaned with a lint free cloth. No need for solvents. If this is a long term problem, the oil will work its way inside the throttle body and then the throttle body should be replaced or expertly cleaned.

 

You are dipping it with the engine running ? It will be fine half way

 

Do you have a way to clear the codes? If so, I’d clear the codes, put fresh gas in it and drive it.


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How old is the gas and why do you assume that it is bad? Does it smell like varnish?

 

6 months is nothing really

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Get the correct maf cleaner and give that a go

 

If it runs OK, then gas is OK. 6 months should be no problem since you mentioned that the tank was almost full. If the gas was really bad, you would know it.

 

I went down the same road with a misfire code thinking it was the fuel but it ended up being a spark plug. The oil overfill may have fouled a plug. Mine just went bad for no reason.

 

Your thoughts of switching Maf would probably be the right next move

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Google MAF cleaners and how to do it. One article mentioned certain MAF units on Lexus and a couple of other different type MAFs that common MAF cleaners should not be used but my guess is that CRC and other brands would work just fine. Looks like the MAF must be removed from the intake to clean it correctly.

 

I have not had to do this but i saw a tv program and they were making the point that degreaser sprays were thewrong thing to use and special maf cleaner was available

 

https://www.amazon.com/gp/product/B000J19XSA/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1

I've used this on my 430. It's the best on the market.

Ray