Brandon5474
Newbie
I have a 1994 K1500 5.7 TBI and I can't get it to idle correctly, after the truck warms up when you are sitting in park the rpms gauge will slowly drop and start bouncing a little bit and then rev back up for a couple seconds, you can hear the engine speed up as well as you can see the rpms go up and then it will go back down and it will keep doing it repeatedly. It is like the idle changes on it's own ,does it in drive too but it's not as noticeable. Only code I get is when I drive on the highway I get a code 44, any ideas?