Question about Chevrolet C2500
P0175 fuel system rich, at limit (bank 2)
You need to take a look at the trucks repair history, when was the last tune-up. If the ECM is noticing that the oxygen levels are too low that could be fouled plugs, bad wires, valves not seating, timing off, fuel injectors not spraying correctly, a problem with the fuel pressure reg May me leaking at the seal).Or you could have a faulty 02 sensor.
Posted on Apr 25, 2010
Basically your codes are telling you that it cannot control the fuel delivery any longer.
our primary suspect would be the fuel pressure regulator
check fuel pressure and injector pulse width
however, I have also seen MAF cause a similar concern.
you need to confirm the G/s PIDs are within specifications
without some experience you may end up replacing more parts than needed
keep me posted and let me know if I can be of any further assistance
Posted on Apr 24, 2010
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Posted on Jan 02, 2017
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