Engine out! Officially done after this...

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So how is she/he/them running?
So, I had a lot done at one time. Didn't get to drive nearly enough to establish a conclusion on any of the parts installed. However, everything seems to working great EXCEPT...

Car went into limp mode.. one code came up with a check engine light... P0174: System too lean condition on bank 2

When I restart the car, limp mode goes away but comes back after about 5 minutes of driving. Also, tried disconnecting JB4 Tuner but the results didn't change. Car seems to be driving fine without any power loss, rough idles, or stalling.

I'm guessing its O2 sensor related given the fact that I had headers, exhaust, and O2 extensions put in and many others have had issues with O2 extensions, but the culprit could be a number of other things like vacuum leak, fuel pump/injectors, MAF sensor, etc.

I'm assuming it's an easy fix but we'll see..
 
So, I had a lot done at one time. Didn't get to drive nearly enough to establish a conclusion on any of the parts installed. However, everything seems to working great EXCEPT...

Car went into limp mode.. one code came up with a check engine light... P0174: System too lean condition on bank 2

When I restart the car, limp mode goes away but comes back after about 5 minutes of driving. Also, tried disconnecting JB4 Tuner but the results didn't change. Car seems to be driving fine without any power loss, rough idles, or stalling.

I'm guessing its O2 sensor related given the fact that I had headers, exhaust, and O2 extensions put in and many others have had issues with O2 extensions, but the culprit could be a number of other things like vacuum leak, fuel pump/injectors, MAF sensor, etc.

I'm assuming it's an easy fix but we'll see..
I had the same problem.. do a smoke test on your exhaust. Mine was because the exhaust was leaking and had to replace 2 gaskets; i got this same message plus the message from both sensors p0430 because of it
 
I had the same problem.. do a smoke test on your exhaust. Mine was because the exhaust was leaking and had to replace 2 gaskets; i got this same message plus the message from both sensors p0430 because of it
Great info thanks
 

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