proof
![[Image: exhaustscavenging-p1-1.JPG]](http://www.fixkick.com/exhaust/exhaustscavenging-p1-1.JPG)
see that/
that is a REAL PUTT. "A"
see the B wave that is vacuum pulse (negative pressure) if there is a leak, it for sure sucks in 20% oxygenated atmosphere,
if the suck puts that on the O2 sensor, the engine ECU slams super rich. (like clock work)
unplug the O2 sensors see if the rich goes bye-bye.?
or block the crack in some way, do not get burned its near 2000f there. use gloves if hot. or wait.
on new cars, 96+ the scans clearly show 02 slammed, classical.
see that/
that is a REAL PUTT. "A"
see the B wave that is vacuum pulse (negative pressure) if there is a leak, it for sure sucks in 20% oxygenated atmosphere,
if the suck puts that on the O2 sensor, the engine ECU slams super rich. (like clock work)
unplug the O2 sensors see if the rich goes bye-bye.?
or block the crack in some way, do not get burned its near 2000f there. use gloves if hot. or wait.
on new cars, 96+ the scans clearly show 02 slammed, classical.
http://www.fixkick.com