2013 Acura RDX P0303 code fixed now P0174

[andrew_j]

I had a misfire fixed with new coil/plug rear bank of 2013 Acura RDX(185k) drove 20 miles and then new code P0174 which seems to be rear bank according to ChatGPT . Are these related typically? I will will drive 500 miles this week commuting and get looked at by same mechanic.

 

[slacktide_bitog]

P0174 is bank 2 system too lean, and on a transverse V6, bank 2 is the front. Often caused by a vacuum leak or an oxygen sensor.

What kind of coils did the shop use?

 

[Rand]

Related to parts cannoning a job maybe.

 

[Snagglefoot]

Check that corrugated intake hose between the flow sensor and intake manifold. It’s notorious for cracking and allowing too much non-metered air into the system.

 

[andrew_j]

Related to parts cannoning a job maybe.

The diagnosis of misfire was based on moving the coil and code followed to next cylinder . The entire repair was $250 for diagnosis and coil by a component mechanic.

 

[Rand]

The diagnosis of misfire was based on moving the coil and code followed to next cylinder . The entire repair was $250 for diagnosis and coil by a component mechanic.

I had the codes backwards(before coffee today) I thought you were getting a misfire after.

I'd suspect they disturbed something with the repair that caused a vacuum leak.
It might be something crumbled/cracked having 13 years old engine hoses besides the more obvious didnt reassemble correctly.

 

[iCurious]

Bank 2 is at the front side of the engine by the radiator. They probably forgot to plug in a vacuum hose I would assume.