Tune problems? Got K&N?
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Safety Car
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Tune problems? Got K&N?
I just remembered again that if you have too much oil on your K&N, it will jam up the MAF readin's and cause tune problems.
How ya' lookin' on that?
How ya' lookin' on that?
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Safety Car
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From: :45 minutes from everywhere / E-I-E-I-O
I'm not sure of all of the manifestations of too much oil, although one of them is auto tranny problems, because of the ECM's read of the MAF sensor control.
I read it in a couple of other forums, and also on the GM tech service bulletin for all S series vehicles, including vehicles with 4L60E deep pans, as does vette.
There's a rash of tune problems in c4 here of late, and the problems are dodgin' all diagnostic clues.
I just remembered this about the filter oil......
I read it in a couple of other forums, and also on the GM tech service bulletin for all S series vehicles, including vehicles with 4L60E deep pans, as does vette.
There's a rash of tune problems in c4 here of late, and the problems are dodgin' all diagnostic clues.
I just remembered this about the filter oil......
Le Mans Master
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From: Everett WA
C4 of Year Finalist (appearance mods) 2019
Good point this happed to my 95 about a week (50 miles) after I installd an new K&N. Too much oil caused a coating on the wires of the maf. It manifests itself as a loss of power when driving as if a plug is failing.
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From: :45 minutes from everywhere / E-I-E-I-O
But exactly what happens? Does the computer retard or advance the timing? Does it change the fuel air mix? Both?
So it gets a bad air mass reading from the oily wire. What exactly does the computer do? Knowin' that might help solve a few problems here...
Safety Car
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From: The Pines South Jersey
the MAF meters the air the engine is injesting
the O2 sensor makes the call rich or lean, injectors PW is adjusted by computer
other parimeters like IAT, coolant temp etc come into play also
that is just some of it, for a further in depth answer head to the scan and tune
the O2 sensor makes the call rich or lean, injectors PW is adjusted by computer
other parimeters like IAT, coolant temp etc come into play also
that is just some of it, for a further in depth answer head to the scan and tune
