OilBurner2003
Full Access Member
- Joined
- Jul 24, 2022
- Posts
- 280
- Reaction score
- 170
Hello everyone! Took my Yukon to the mechanic after trying to troubleshoot for 6 months, he said the MAF sensor, PCV valve, O2 sensors, were all a cause for this P0300 so I got it all replaced. Still have a P0300. So, I started doing some digging. Realized I could smell a lot of fuel fumes at idle, Replaced ignition coil, (I did it because I had it in the shop anyway) A lot better! Almost no fuel smell, but still, P0300. Had someone say I should check my EGR, to see if it's clogged. Below is the EGR side to the engine, I don't know much about these, But that looks pretty gummed up to me. Is there a way to clean this safely? I'm soaking the EGR valve itself in carb cleaner for a couple hours, I'm pretty sure with how gummed up it is it may or may not make a difference, and I might need a new one anyway! But for the engine, which is this picture, how the hell do I clean those ports?
A important note. I can't get this code to appear at idle at all, this code will only appear when you are accelerating hard. I have other posts about this same code, So any advice on how I get that crud out of there is very appreciated. Thank you!
A important note. I can't get this code to appear at idle at all, this code will only appear when you are accelerating hard. I have other posts about this same code, So any advice on how I get that crud out of there is very appreciated. Thank you!