Engine sputters like it wants to go then dies?

Hello! I have a 2000 suburban that will not start. It has a strong crank, sputters like it wants to go then dies. I can get it to start by hitting the gas at the same time but I must maintain 1k rpm before it wants to die again. At the 1k rpm engine seems to be running smooth. I do not know if this is helpful to know but I had just got done replacing spark plugs/cables and coils and took a couple mile drive. As soon as I pulled in the driveway it sputtered to a stop. Since this issue arrived I’ve put the original coils back on, changed the Idler air valve and MAF. The only time it has started since having this issue is the first time trying it after I replaced the idler air valve. It then idled at 1k and when I gently blipped the gas pedal it shot up to 3k for a few seconds and then came back down to 1k idle. Now it does not start and I’m back in the original position. Please help!