No pics but a little long winded update.
I had tried a few times to adjust settings in my tune with no real progress so I decided to look up the factory settings for the LMAF. I loaded that tune into the TWEECER and went for a start. At that point Murphy’s Law (AKA Travis’s law) jumped up and kicked me in the ass. The battery that I have had on slow charge for a week was dead. I took the new bat out of the aveo and put it in the mustang. It fired right up but seemed to start missing. The AFR was around 17+ at idle. The warmer it got the worse it ran. By the time it was 170*, AFR was at 19-20 then the idle slowed down & the car died. After several attempts to start I decided to check fuel pressure. With just the key on fuel pressure was only 20 PSI!!!!!! I unplugged the loud ass oil pump so I could hear the fuel pump. It was making noise but didn’t sound quite right. I went to adjust pressure & it wouldn't go up. ARRRRGGGGGG!!!!!! 20 PSI is where the gauge sits normally when the car is off. I added a gallon of fuel then checked the resistance on my fuel gauge sending unit wire. I had 35 ohms so I know I have enough fuel in the tank. I cracked the feed line and drained the 20 PSI off. Then I flipped the switch on the fuel pump and saw that massive amounts of fuel were spraying out. So now I was thinking that my new regulator must have gone bad. I tightened up the fuel line & flipped the switch on again. I looked at the gauge & to my surprise, it now read 65 PSI. I said what the hell & went for a start. It started & idled in
the 11's-12's. While it was running I dialed the pressure back down to 42 PSI. It now idles around 14.4-13.8 I snapped the throttle open & there was less hesitation. AFR goes to 17+ when I snap the throttle open. Then iit drops into the low 12’s or mid 11’s. The AFR goes to 12-13 when the throttle closes & hangs out there for a couple seconds before coming back up to low 14's. I have no idea what had happened but seems to be running better now. Also the slow hot start went away with the battery swap so I'm headed to autozone to see if my battery is in the free replacement period. I'm kind of wondering it something was in the tank & the pump sucked it up. When I turned the pump off, whatever it was maybe floated away? It’s always something.
Oh, one thing I forgot to mention, I found the main ground to the body for the battery & the pump was a little loose & I could move the pump ground. Since the fuel pump & oil pump are on the same power circuit, I wonder if that loose wire caused the oil pump fuse to blow. The oil pump is fused. The fuel pump currently is not. After this issue, it will be getting a fuse. I got a new bat from AutoZone. I welded in a ground stud, a 3/8 (9/16 head) bolt to the roll cage floor pad. Then I soldered the grounds that were previously twisted & taped together. I started the car & all is well so far.
I had tried a few times to adjust settings in my tune with no real progress so I decided to look up the factory settings for the LMAF. I loaded that tune into the TWEECER and went for a start. At that point Murphy’s Law (AKA Travis’s law) jumped up and kicked me in the ass. The battery that I have had on slow charge for a week was dead. I took the new bat out of the aveo and put it in the mustang. It fired right up but seemed to start missing. The AFR was around 17+ at idle. The warmer it got the worse it ran. By the time it was 170*, AFR was at 19-20 then the idle slowed down & the car died. After several attempts to start I decided to check fuel pressure. With just the key on fuel pressure was only 20 PSI!!!!!! I unplugged the loud ass oil pump so I could hear the fuel pump. It was making noise but didn’t sound quite right. I went to adjust pressure & it wouldn't go up. ARRRRGGGGGG!!!!!! 20 PSI is where the gauge sits normally when the car is off. I added a gallon of fuel then checked the resistance on my fuel gauge sending unit wire. I had 35 ohms so I know I have enough fuel in the tank. I cracked the feed line and drained the 20 PSI off. Then I flipped the switch on the fuel pump and saw that massive amounts of fuel were spraying out. So now I was thinking that my new regulator must have gone bad. I tightened up the fuel line & flipped the switch on again. I looked at the gauge & to my surprise, it now read 65 PSI. I said what the hell & went for a start. It started & idled in
the 11's-12's. While it was running I dialed the pressure back down to 42 PSI. It now idles around 14.4-13.8 I snapped the throttle open & there was less hesitation. AFR goes to 17+ when I snap the throttle open. Then iit drops into the low 12’s or mid 11’s. The AFR goes to 12-13 when the throttle closes & hangs out there for a couple seconds before coming back up to low 14's. I have no idea what had happened but seems to be running better now. Also the slow hot start went away with the battery swap so I'm headed to autozone to see if my battery is in the free replacement period. I'm kind of wondering it something was in the tank & the pump sucked it up. When I turned the pump off, whatever it was maybe floated away? It’s always something.
Oh, one thing I forgot to mention, I found the main ground to the body for the battery & the pump was a little loose & I could move the pump ground. Since the fuel pump & oil pump are on the same power circuit, I wonder if that loose wire caused the oil pump fuse to blow. The oil pump is fused. The fuel pump currently is not. After this issue, it will be getting a fuse. I got a new bat from AutoZone. I welded in a ground stud, a 3/8 (9/16 head) bolt to the roll cage floor pad. Then I soldered the grounds that were previously twisted & taped together. I started the car & all is well so far.