Rough Idle on start after engine is warm

[mgroth]

I put in a new MAF sensor and problem went away.

My original MAF started throwing codes a yr ago. I cleaned it and that worked for a while. Then after a while codes came back. So I bought a new eBay MAF (Chinese) . Worked great for a while. On a hunch I installed the old one last week and the rough idle on warm start was gone. But CEL was back. so I just bought yet another MAF, this time a Bosch. I cleared CEL code and idles fine now.

Thanks for all suggestions and input.