Coalkracker

After doing some reading on open loop and closed loop I may be wrong with my previous statement

Update, still no progress. I have been inspecting wires and connections and haven't found anything wrong yet. I cleaned the grounds, they were all clean already but cleaned them more just in case. I was messing around on my scanner and may or may not have some helpful info. I can see live data of all the sensors. If I clear codes while it is running it start running somewhat normal. Under fuel system status it will say "ECU 1 and ECU 2- closed loop, using oxygen sensor feedback to determine fuel mix". Then after a minute I hear that click with the constant "sound" or "slight noise" that I can't explain and ECU 1 and ECU 2 status goes to "open loop due to system failure". To me it sounds like it backs up the statement of being a wiring issue. But does that possibly narrow it down to where I need to look better?

Great thank you! So this is definitely sounding like an issue with a wire or wires?

Today I cleaned the grounds on the front passenger side of the engine block. I read the other grounds only affect charging? Idk if that's true or not but I can try the others just in case.

So can I try to narrow it down by looking at those specific circuits? I'd also like to add that sometimes when I start it, it seems normal then a few seconds later I hear one click from inside the engine compartment and it starts making a faint "noise" or "sound" that I can't explain and starts running very rough. I can make the sound go away by clearing the codes but it comes back a few seconds later. I also noticed that it's reading 74 percent ethanol in my fuel even though I'm using ethanol free fuel. Idk if any of that info supports or goes against what was said about the wiring but anymore feedback would help greatly.

Hi everyone, I'm not very forum savvy so I apologize in advance but here it goes. 2007 suburban 230k miles. I was driving one day and all was fine, I stopped at a flag man in a construction zone and check engine light came in and started running very rough. Also traction control lights came on too. Turned around and on my way home engine light started blinking and transmission started shifting much harder. It's running disgustingly rich now! This happened about a year ago and I've been driving my backup vehicle since. Now I'm trying to fix it and I'm stumped. I've tried plugs, wires, coil, TPS, seafoam a few times, checked evap purge valve, and probably more things that I've forgotten about. It's throwing codes like crazy and sometimes they change. I ran it today and got p0300 random/multiple misfires, p0328 knock sensor bank 1, p0615 starter relay, p0573 cruise control switch, p0354 ignition coil d, p0358 ignition coil h, p0443 evap valve, p0328 knock sensor 1 bank 1, and c0561 stored engine speed/pedal position out of range. The starter relay and cruise may or may not have been there before, but I remember cruise not working for a little while before this happened. Also if I'm running at night it seems that the lights have a slow pulsating to them. What the heck could be going on here? Any input would be a great help! If any more info is needed I can do my best to provide it.

Where is a ground in that area? I may end up having to get it towed if i cant figure this out.

I forgot to mention that the line under my park reverse neutral and drive isnt there anymore to indicate which gear i am in. Also i had my rear main seal replaced 2 weeks ago. Can something have gotten pinched under there while they were working on that??

Can this be a possible bcm issue or should i strictly be looking at the wiring?

Its not acting the same as when the battery died 7 months ago. Its acting differently.

Battery is 7 months old. Its the best napa brand they had. Tried jump starting also.

Hi all i have a 2007 1500 thgat wont crank. The other night i drove it fine then tge next morning it wouldnt crank. Other symptoms are no radio, window wont work, dash takes a few seconds to turn on, service 4 wheel drive, service airbag, dome light doesnt come on wgen i open thge driver door but comes on when i open the back door, and there might be more but i cant think of any at the moment. The door locks and blower fan both still work. When i turn the key nothing happens. Any ideas what the problem may be?