Hi, This is my first post and I hope someone has some ideas that may help.
I have a '98 Jimmy that has three codes on it. P0101,P0300, and P0404. I know what the codes mean but, I can't figure out what would cause all three to trigger at once. The truck has no power, jerks and otherwise runs like crap. It was recently in the shop for P0740. That was fixed and now these other three are coming up.
Does anyone have a suggestion?
Thanks

Your mass air flow sensor is having issues. Check to see if it is dirty or has a short.