Engine runs fine for 30 seconds then check engine light comes on and loses power, runs rough and wants to die. As soon as you shut it down let it cool off, then start it backup same deal happens. All things temp. , oil press., charging system all appear normal during all this. Any ideas where to start looking or give in and find someone with scanner? Also, how do you reset the computer? Just by unhooking battery cable?
Can anyone help?