2000 Toyota 4Runner Q&A

2000 Toyota 4Runner Question: Why would a cold idle speed be 1500rpm when it's hot outside?

It's a 90 degrees out every day. The light came on and the code read- rich mixture problem. There isn't any gas smell from the air filter. I bought a new gas cap. May have to get new o2 sensors. The intake housing coupling (the accordion one)cracked and was repaired with black silicone. -
Answer 1
what are your eng codes? -
Comment 1
P0172 air/fuel mix system rich (bank 1) probable cause: 1.injector or fuel pressure regulator leakage 2.faulty MAF/VAF sensor 3.ECT faulty 4.Faulty H02S/AF sensor I just had valve cover gaskets and ignition coils installed. Thank You for your help. -
Comment 2
reurn and ask if they could have left something unplugged or connected wrong -