Engine stumbles at low RPM under load
Thread Starter
Team Owner
Joined: May 1999
Posts: 22,830
Likes: 13
From: Columbus Ohio
CI 3-4, 8-9-10 Veteran
St. Jude Donor '06-'08-'10
Engine stumbles at low RPM under load
Check engine light cam on. Code P0300H - diagnosed engine mis-fire.
Thank God I had a computer to tell me that.
No other codes at all. No TPS codes shown even though It doesn't have sensor installed right now. Not even throwing the TPS error on start up.
At 1,500 RM from third gear on up it acts like an carbed car that's loaded up and flooding.
1st and 2nd pull better but still not they way it should. I'm changing out the plugs in the next day or so. I'll make sure the wires are seated when I do that as well.
Anyone have suggestions what else might cause it?
Last edited by Blue 92; Jul 23, 2008 at 11:31 PM.
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
A misfire condition is usually the plugs or wires and sometimes the ground wire on the rear of the driver's side head has come loose but if it was that, it might not run at all or just barely.
