I threw a 'P0175 System Too Rich (Bank 2)' code this morning. I noticed the truck idling very low and rough, checked with the edge and sure enough. After continuing to drive the check engine light came on. What could be causing this? It was cold this morning about 27deg, and the truck really did not warm up much before i took off for golf. I was thinking spark plugs or injectors? I got the letter on the injectors last year too. I did a search but found very little on what people found to be the cause..

Fuel filter was replaced at 30k
Spark plugs have never been touched
Injectors have never been touched

The only thing changed as of late is the exhaust and a new battery. Truck has had no diagnostic problems up until now..

The truck sat for about 5-6 hours (playing golf) and when i started it you could smell the gas and it shot to a very high idle then came down. No code on the way home though, but the idle was periodically rough.. There was a very small amount of hesitation at times, but really not that bad.

Thanks guys, I have been having hell with the truck lately, Everything seems to be going to pot

 

Check your MAF, vacuum lines. Also could be a leak in your exhaust before the 02 sensor, and sense you just redid your exhaust that's a possibility.

 

You go golfing in 27 deg weather??? Hardcore man.

 

sounds stupid, but maybe water in the gas? i know i put heat in til like may, we can have weather changes of 80-90 degrees in the spring time.

 

Hmm, smelling raw gas. Sounds like an injector is starting to mess up on you. But I'm not a professional, and I have never been to a Holiday Inn Express.

 

I have not done any checking yet, but I'll definately check these areas. I had thought the exhaust might be something of an issue..

Yea, it was a company golf tournament with an 8am tee time. It was cold till the sun came out around lunch then it warmed up to around 62deg

This could be a possibility, I have been running that new shell gas with nitrogen in it for the past two tanks. And my tank was almost to Empty when I left.



That was my first thought when it said 'running rich', that and remembering getting that letter on the injectors. I just am doubting if the dealer would do anything about it because of the edge, intake, exhaust, etc, etc...

 

Yeah, hopefully it doesn't run so rich to cause a catalytic converter to get fouled.

 

Haha!


Yeah, just check whatever you can out. Good luck

 

In just messing with it a bit and listening to things it can be heard through the exhaust a bit and is still saying no more code. The idle is also normal but starts to get shaky after a while. Startup was also hesitant, it choked twice and stumbled to start on the third...

 

Im not a pro on this stuff but when Injector #5 went out on my truck I Could smell that raw gas smell it Idled really rough the rpm whould shoot up just after start but i took 2-3 turns on the key to get going ..Good luck

 

Take the Edge off and put the stock tune back on, see if that does anything.

 

ive been in the same boat with my truck but bank 2 was running lean, it turned out i was out of gas when it said i had a 3/4 tank left

 

Don't worry my gas gauge is worthless!

 

There's an issue with the injectors on 2005 models sticking open and hydro locking the engine, worst case scenario. Most of the time they'll load the converters with raw fuel and burn them out.

 

That's what I was thinking also.