Code 10PCM PO174 HC

[cscarlson]

I have Code 10PCM PO174 HC showing up on my Corvette Computer..

Means Fuel Trim System Lean Bank 2

How do i fix it?

 

[Hib Halverson]

First, check for and repair any vacuum leaks. Next, run three bottles of Red Line Complete Fuel System Cleaner for the next three fill ups. Clear codes and road test. If the code resets, obtain the factory service manual for your model year. Zip Products is a good source for those. Look up that fault code in the FSM the follow the diagnostic and service instructions.

 

[cscarlson]

Where do you get Red Line Complete Fuel System Cleaner ?

 

[Hib Halverson]

Where do you get Red Line Complete Fuel System Cleaner ?

Sometimes I see it at autoparts mass-marketers...Pep Boys, AutoZone, Kragen, etc.

Any Red Line Oil Dealer will sell it.

You may be able to buy direct on Red Line's web site.

 

[ernestD]

sounds like a vacume leak

 

[cscarlson]

where would it be

 

[ernestD]

I had the same code and a rubber hose comming off the pvc valve had a hole in it.REPLACED THE HOSE-no more codes!

 

[BigJimZ16]

I had the same code and a rubber hose comming off the pvc valve had a hole in it.REPLACED THE HOSE-no more codes!

Very common for the plastic fitting that the PCV hose plugs onto at the front of the engine to crack. GMJunkie pointed it out several times.

 

[cscarlson]

where do you get the plastic fitting? part #

 

[BigJimZ16]

where do you get the plastic fitting? part #

Don't have a number for you, but I'm sure the Chevy store will have exactly what you need.

 

[cscarlson]

changed the pcv.. we'll see if it fixes the problem

 

[cscarlson]

Problem still there

 

[cscarlson]

I had the same code and a rubber hose comming off the pvc valve had a hole in it.REPLACED THE HOSE-no more codes!

Is it the hose the pcv valve goes in or the hose that attaches to it after it is in the hose housing?

 

[cscarlson]

Don't have a number for you, but I'm sure the Chevy store will have exactly what you need.

Called the chevy dealer. he says i have to buy the whole assy for that little hose. can you get me the part number

 

[ernestD]

I simply cut a piece of fuel line hose/much thicker/and used that.

 

[cscarlson]

put a new piece of hose on it.. same thing,, used carb cleaner with engine running looking for leaks...no luck. 02 Sensor?

 

[ernestD]

could be at this point,I hate to throw parts at it but find a good chevy or corvette tech.I really do not like dealerships god knows what they would charge to find your problem! :confused

 

[cscarlson]

was just told it needs a fuel pump

 

[ernestD]

o.k.good luck with your repairs and happy holidays!

 

[cscarlson]

o.k.good luck with your repairs and happy holidays!

The cost of the fuel pump and installed around $1500