O2'S fouled
 

Anybody out there have any input on the way Ls1's run/sound with fouled O2'S? I have a ticking noise right behind my wheels and it is also noticable from the engine bay. Anybody have any sound clips? Input?

Tim

Re: O2'S fouled
 

Ticking at the engine is usually spark arcing out an internal engine noise or an exhaust leak. Is there any problems or is it just a ticking noise while running?

Re: O2'S fouled
 

wrencher....I have checked for leaks...check the rods and valves...the plugs and wires are new. I spoke with a local shop to me and they told me it could be the 02'S and I hear the knocking echo through the headers. This didn't start happening until I installed the headers. I think the car starting running rich after the install and fouled the 02'S.

Re: O2'S fouled
 

If you had a o2 problem you will get a ses light. You got cats,or orp's? This noise at idle or all rpm's. Sounds like you are describing an exhaust leak by the collectors.

Re: O2'S fouled
 

I have the same problem...I have checked for leaks a hundred times and still have not found anything. I am still runnin a bit on the rich side but haven't had any front O2 issues as of yet. I have been told it may to exhaust gases in the headers, but have a hard time believeing that one.
I installed the headers about 4 months ago and the noise was there right from the get go. It has all the tell tell sighns of a leak but have like I said have found none. If ya happen to discover what the issue is I would love to know what it is...

Re: O2'S fouled
 

Its not an exhaust leak...The headers have been off and on....trust me ... It's not rods, valves, springs...I dunno...It's a tick though...I guess it could be a lifter but wouldnt it run a little shitty if a lifter was bad? <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" /> <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" /> <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" /> <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" /> <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" /> <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" /> <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" /> <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" />

Re: O2'S fouled
 

when my drivers side 02 went south I know it big time.. Car sputtered and ran like dog crap down low!! I could smell raw fuel als all.. Fouled all 4 plugs on the bad 02 side also!

also i got a SES light from the bad 02 saying low 02 sensor reply or something like that.

if a 02 is totally gone you will know it for sure <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Re: O2'S fouled
 

What about the AIR check valves fluttering? There is a restrictor mod up here somewhere to eliminate it.

Just a thought!

Mark

Re: O2'S fouled
 

I just found my ticking yesterday. It's a bloody injector. Quiet when cold, noisy when hot and under light load, put it to the rug and it's quiet again.

Re: O2'S fouled
 

I had a ticking... I had changed the plugs and wires. Then I put macs on... when I pulled the plugs, three of them were finger tight <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> I mean loose. If you just changed plugs... check that. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />