Anybody got their issues with the new K&N filter resolved ?
08-16-2006, 12:26 AM
#16
Originally Posted by washington dc porsche
Has anyone tried to reinstall the stock airbox before throwing away the MAF?
08-16-2006, 10:57 AM
#19
Racer
Thread Starter
Originally Posted by 99firehawk
CEL ON FAULTS FOR O2 ADAPTATION BOTH BANKS, AND FUEL TRIM INDCIATING RICH MIXTURE.
they go bad a lot especially the early cars,
they go bad a lot especially the early cars,
08-16-2006, 03:55 PM
#22
Technical Guru
Rennlist Member
Rennlist Member
Originally Posted by mdillian3690
will the connection for the transistor or resistor (not sure what it is called) be broken?
08-22-2006, 08:47 PM
#27
Burning Brakes
Maf sensor .... how it works
The electronics heats up a calibrated resistor or series of resistors and actually calculates heat loss compared to ambient, based on the mass flow ( Pressure, temperature compensated ) of air passing by the resistor. More mass flow, more heat carried away. Actually does this indirectly by measuring the current though the resistor which is directly related to resistor temp. and inversly relative to actual resistance at a given temp.
So when the resistor gets covered with oil it is effectivly insulated from passing air and gives an eronious value. Not sure why a good cleaning shouldn't fix any problems. Only thing I can think of the comonents are very fragile and can be easily be damaged due to rough handling re:cleaning.
The electronics heats up a calibrated resistor or series of resistors and actually calculates heat loss compared to ambient, based on the mass flow ( Pressure, temperature compensated ) of air passing by the resistor. More mass flow, more heat carried away. Actually does this indirectly by measuring the current though the resistor which is directly related to resistor temp. and inversly relative to actual resistance at a given temp.
So when the resistor gets covered with oil it is effectivly insulated from passing air and gives an eronious value. Not sure why a good cleaning shouldn't fix any problems. Only thing I can think of the comonents are very fragile and can be easily be damaged due to rough handling re:cleaning.
08-22-2006, 09:59 PM
#29
Rennlist Member
Can I ask why we would consider a K&N in the first place? Has anyone done dyno runs to verify the claims? I'm not trying to be a smart a%$, but the last time I dynoed my engine I tried a K&N and there was no increase in torque or HP...I did use one on a heavily modded 3.2 Carrera engine (cams,exhaust, and 10.3:1 Mahle pistons) and we gained 2.5 HP....The UOA's that i do on this engine show higher wear than with a paper filter...not knocking it, but the proof is in the pudding as far as I'm concerned.
08-23-2006, 08:46 AM
#30
Originally Posted by mdillian3690
How will the dealer determine what is wrong based on the P1130 code? Thanks!
WITHOUT LOOKING AT THE ADAPTAION NUMBERS YOU CANNOT ACURTALY DIAGNOSE THE REASON FOR THE CEL
