Lean code
#1
Lean code
So I was on my way back from picking up an engine today and my check engine light pops on. Drive for two hours back home and only thing I notice is the truck idling rougher than normal...like it had a major vacuum leak, but not quite as bad as a misfire. Pulled the codes and came up with a bank 2 lean code, as well as both knock sensors low input. I put new knock sensors in the truck about 400 miles ago and have had no issues until now. I went through and sprayed the passenger side of the intake with brakleen and couldn't find anything, also sprayed the pcv line and still nothing. Also the truck will only idle like it has a vacuum leak from time to time, at one light it will be normal, the next chopping hard and acting like it wants to die. Any ideas?
#6
I sprayed some brakleen all around the intake and couldn't find anything. So either it's leaking on the inside edge where I can't spray, or I'm just missing it. Also both front 02's are new as of about three months ago, so I don't think they should be the issue.
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#10
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Lean missfire form the bad o2
You did new o2's when you put a new set of headders on ... Right? The **** burning off inside the new headders has a tendency to kill o2's. they live for a while but dosnt take long for them to give up.
A good vacuume leak would rock both banks as would a clogged fuel filter or bad pump.
You did new o2's when you put a new set of headders on ... Right? The **** burning off inside the new headders has a tendency to kill o2's. they live for a while but dosnt take long for them to give up.
A good vacuume leak would rock both banks as would a clogged fuel filter or bad pump.