Need some help with P2188 and P0140

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Well I still have the code and verified there is no vacuum leaks on that bank. I never had this code before I did my oil change and filters. I am thinking although I am only getting the code on one bank it may be related to the aftermarket K&N style filters flowing too much air as dumb as that sounds. If not that has to be a fueling issue unfortunately.

 

Technically I have ThinkDiag which is a copy of Launch with Launch being a copy of Leonardo. What do you mean by "use the EOBD menu item"? I tired to access fuel trims in the data stream menu, but dont see it.

Needless to say any help appreciated.

 

I found a leak with the pictures, but looks like it was part of the EVAP system, so not in the air injection system to the secondary valvles. I am pretty sure the solenoid is stuck open and the accumulator can not build any vacuum to actuate the secondary air valves. There is plenty of air being pumped to them. I also would like to see the fuel trim data as I still have the rich code, the solenoid will only fix the secondary air pump codes (P0491, P0492).

 

PMed

 

@Qavion flash32 guided me through getting fuel trims. I posted below. These were only at idle and need to get some more at varying rpm’s to see what’s happening in the upper rpm range. We are both leaning towards a possible injector leaking or not closing in accordance with others. One thing to note is this cars got direct injection, which is new to me also. There definitely seems to be some sort of fuel issue if you compare to the other bank. Odd thing is I have no other codes from anything else like misfire, which you might expect to see on that bank.


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I was able to get ahold of fuel trim data

 

The code only pertains to idle condition apparently, however I agree.I have a feeling I am about to do a lot of work on the car which is fine. Just to access spark plugs and fuel injectors entire manifold has to come off. Additionally these cars like any direct injection car will typically have carbon build up issues. So it’s one of those while you are in there type of things.

 

not yet but have some barrymans b 12 and Techron I am going to run through the stem

have you used it for similar issue before ?

 

Wanted to close out the thread and thank all for any advice or input. I ran the cleaner and the cars fuel trims are back to normal. I must of had some kind of issue with an injector or multiple injectors on that bank. Thankfully it's fixed now. Will drain the oil and refill as I am not sure how much gas made it in if any when it had the rich condition at idle.

 

Followed @flash32 guidance and went with BG44. I still need to figure out why I am getting the secondary air pump insufficient flow. I believe it is due to the secondary air valves being stuck closed, due to the car sitting. I tested and did not find any vacuum leaks and replaced the solenoid also.