CEL ObdII Code P0170 HELP!??

[mramc3]

Ran a scan on my car for the CEL. This is what I got:

P0170 Fuel Trim Malfunction (Bank 1)

I changed out my fuel pressure solenoid, the one located on the engine side of the firewall of the driver's side. That seemed to take care of the first CEL code which I don't have right now. But this P0170 remained. The car is stock. What would cause this error, and what can I do to fix it?

 

[captd108]

I got the same code actually about a month ago while just randomly driving on the highway so i went to an autozone and they got that code. Well after posting a thread on here i guess i pretty much got out of it that its pretty much that your either running to rich or too lean and that the ecu is getting "confused " i guess. So i just reset my afc and another thing i did was i got a new exhaust ground strap ( on the cat its a little braided strap ) and replaced it since when i put in my test pipe i just got rid of that strap which is actually the ground for the rear o2 sensor on the catback, which could of had an affect on the fuel trims as well. That may of been the solution to my problem but yours could be different so i would check those things just in case, or mabye could be another o2 sensor. Either way after that i havent gotten the CEL again. Hope this helps

 

[mramc3]

i still have the ground strap on. Like I said everything is pretty much stock. I will look at the strap to see if it is making a solid connection. How exactly does this ground strap effect my fuel readings?

 

[captd108]

the ground strap acts as a ground wire for the o2 sensor on the catback exhaust. By the connection not being correct it can knock off the o2 readings which can also affect your fuel trims. I read a post on here from like 2 yrs ago where it explained alot of what its purpose is and what it can do. Just search exhaust ground strap. Hope this helps in some way

 

[mramc3]

buddy of mine said my o2 sensor off the o2 housing could be bad. How do you test that, and how can I remove it, Last I remember that was a SOB to take off.

 

[captd108]

that could be possible as well. You'll need an o2 sensor socket though from an auto store or something. Just dont strip the threads