My Tundra suddenly went domestic on me Friday
2000 Tundra 4.7L V8
It refuses to stay running. It starts every time, revs to 1000RPMs then begins dieing. Sometimes it will catch itself at 150-200 RPMs and rev back to 1000RPMs before finally stalling out. This ususally lasts 3-5 seconds.
If I rev it to 3000+RPM's I can keep it running, but only if I pump the throttle to rev it between 3k and whatever RPMs. If I try to just hold it at 3k+ it also dies slowly.
This is a drive by wire setup and all of those components check out. We tested the MAF as well.
It acts like a GIANT vac leak, but we cannot find one.
The fact that I can rev it and keep it running makes me think it NOT a fuel supply issue.
We ran a OBDII and the only code was for a heated oxygen sensor, which wouldn't cause this (I believe)
Any ideas?