Hey All:
Trying to track this annoyance down. I don't notice any lagging, rough idle, or lack of power at all. I thought it was intake manifold gasket but on a cold start I sprayed all around the intake manifold and didn't hear ANY RPM spikes or lows. I also ran some data on the O2 sensors. All of those videos and pictures are below
photos.app.goo.gl/7VXCuz3SY1PVTHy56
Can someone point me in the right direction as to where I should look next. I didnt see any vacuum line cracks or anything like that including on the air intake but ill admit I didn't look super close, its freezing out. When I was looking at the sensor data from Torque, it seemed that 3 of the O2 sensors weren't oscillating and instead were just staying high.
As for the maintenance history, buckle up because I love this story. My first car was an 07 GT limited V6 5 speed (in my profile picture). Loved that car to death. Moved to Maryland, less than 24 hours a guy plows into me, bending the frame, car is totaled. I then bought an 08 GT V6 5 Speed with only 50,000 miles on it for like 5K. It was OK but not near the quality as my 07. At this point I knew NOTHING about cars and was always scared to do my own maintenance. Because I was buying the car out of state, I asked the seller to take it to a shop to have them give it a once over to make sure it would pass inspection / emissions. The shop called and said it would. I drove up to NY from Baltimore and bought the car. Brought it back to MD and went to get it registered, failed emissions (straight piped) and failed safety (steering column). The steering column had a wobble in it and the shop wanted like $500 to tear it down to try and figure out what was wrong. At this point, I grew a pair and was like well **** I can tear it down myself. Long story short, I fixed it from tearing it down with no prior experience which was enthralling. I they started doing little things. Brakes, rotors, wheel bearing, etc.
Anyways, flash forward 2 years. My gym is right next to a mechanics. I saw an 03 tiburon in the parking lot. I saw it there for a month. I asked the shop about it because I wanted to see if maybe I could get parts off of it. They said that they quoted $3000 to the owner to fix it and the owner just left it and took off their plates. I saw an opportunity and filed an ABR (Abandoned Vehicle Request) to VA and 15 days later got the approval to proceed. I then filed an ITA (Intent to Auction). 10 days later, I took the paperwork to the DMV and got the title for the car. I walked into the shop, gave them the $75 that was owed on the car for the diagnostic, got the keys, and the diagnostic report. It needed brakes, calipers, control arms, tie rod ends, front struts, and rotors. I priced it all out for like $400. I took a deep breath and was like, I got this. Its not my daily driver so I can learn this.
I took a weekend and some DIYs and 2 days later got the car inspected and registered and I now drive it daily. I save my 08 for the weekends to keep miles off of it. Anyways TLDR, I don't have ANY maintenance history on this car and have been fixing issues as they pop up.
With that being said, what is the chance that all of the O2 sensors are actually bad? It seems to me that if they are all reading these values that maybe something else is causing that issue. It just seems weird that ALL of them could be bad. I mean it is possible that they are all original O2 sensors but it just doesn't seem likely.
Can anyone provide any insight?
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