Originally Posted by
JamesH
Yeah pipes below the inlet manifold below the breather were split! So then causing an air leak.
Replaced the pipe, cleared code and been good for months.
I noticed a split in 1 of mine yesterday, fixed it, but still the same. Tho mine is running more like the opening post. Has my head turned. I've even separated the exhaust before the cat, in case the cat had collapsed.