On the 350 TBI engine, I'm not getting enough fuel in the low and mid range, and it keeps getting worse. This started after the vehicle was stored for 2 years. It runs fine wide open, so it's not likely the fuel pump. It's electric. It's not the computer either...I hooked up my laptop and it's getting the correct inputs from the sensors and attempting to lenghten the pulse width. It's getting knocks and low O2, and lots of block learns, which, in plain English, means that it's not getting enough fuel and is trying to correct for it. An exhaust sensor verified the lean condition.
Since it's not sequential, there's no rail to check. Can you clean the injectors somehow? Is that likely the problem? They're awful expensive just to throw at the problem. Can you soak them? Take them apart? Swap the wires, if they're the same? We've tried putting lots of injector cleaner in the tank. Also, it seems like more fuel in the tank makes it run better. We had someone else replace the pump...could they have left a vacuum leak? Again, the good WOT performance makes me doubt that, but is there a place where that would be likely to happen? I don't want to drop the tank if I don't want to.
This stuff is just too new for me. I'm an old lady. Maybe one of you young folks or pros can help. I'll take any advice.
Since it's not sequential, there's no rail to check. Can you clean the injectors somehow? Is that likely the problem? They're awful expensive just to throw at the problem. Can you soak them? Take them apart? Swap the wires, if they're the same? We've tried putting lots of injector cleaner in the tank. Also, it seems like more fuel in the tank makes it run better. We had someone else replace the pump...could they have left a vacuum leak? Again, the good WOT performance makes me doubt that, but is there a place where that would be likely to happen? I don't want to drop the tank if I don't want to.
This stuff is just too new for me. I'm an old lady. Maybe one of you young folks or pros can help. I'll take any advice.
Comment