hey everybody,
im new to the forum and im hoping for some help. i got a idle prob on my V10 . i go to start it from a cold or warm start it will firer up and die right away or somtimes it will start and putter act like it will die goe down to like 200rpm's for a sec and then settle to about 700 rpms. so if i keep on the throttle it when i first start it it will stay running and after warm it will stay around 800 rpms, with no problems. also if i give it 3/4 trottle from a dead stop it will puttuer and backfire and dog out real bad. i think this is all related to the same prob. so i ran a diognostic test and told me 2 probs (code: 152 and 505) 'o2 sensor bank 1 sensor 1', and idle control malfunction. so that means im running rich. SO HOW DO I FIX MY PROB? new sensor? iac motor? if someone can help please

 

IAC motor would be the first thing to try. It's either dirty or defective. I know the one in my truck is going bad, but I don't drive it much so it's not a real priority to fix.