Need help. Diagnostic code P0175 and P0172?
Need help. Diagnostic code P0175 and P0172?
My G recently through codes
P0175 fuel system too rich (cylinder bank 2)
P0172 fuel injection system too rich
Would anyone know why these codes are happening or where exactly the problem is?
MAF, Cats, fuel injectors, O2 sensors, spark plugs ???
P0175 fuel system too rich (cylinder bank 2)
P0172 fuel injection system too rich
Would anyone know why these codes are happening or where exactly the problem is?
MAF, Cats, fuel injectors, O2 sensors, spark plugs ???
Joined: Mar 2009
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From: By the sea, Tx
G35 sedan w/ too much money in mods

That shows both banks, so I'd start with the basics and look for things that affect the engine as a whole.
Air restrictions
Spark plugs
MAF sensor
Fuel pressure
I highly doubt it's the CATS or both A/F sensors at once.
Air restrictions
Spark plugs
MAF sensor
Fuel pressure
I highly doubt it's the CATS or both A/F sensors at once.
Do you know how to test fuel pressure
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