Hey so I am trying to troubleshoot a 2000 5.7 2500 5spd, the truck runs fine until I shut it down for 5-10 min and then I fire it back up and it is in open loop working its way to closed loop, which is all fine but when it is in open loop it stumbles bad , soon as closed loop kicks in it runs fine, I can put a scan tool on it and switch from closed to open loop and same damn thing stumbles, IT THROWS ZERO CODES!
Only things not replaced are 02s,fuel spider, and pcm
Any thoughts?
Only things not replaced are 02s,fuel spider, and pcm
Any thoughts?