do O2 sims keep all codes in check????
Thread Starter
Instructor
Joined: Oct 2004
Posts: 203
Likes: 0
O2 sims have a square plug right?? that will fit in the front sensor location.i was told you break 4 codes when you drop the front sensors or rear.the sims take care of two codes.soooo the engine light will still come on even with the sims???? is this all true???? if it is ,why buy sims???? any input thks. 
Burning Brakes
Joined: Jul 2002
Posts: 791
Likes: 52
I'm confused as to why you are putting the sims in the front O2 locations. Is there a reason why? Putting O2's in the front two locations will cause problems because the PCM require the 2 front O2's for operation.
Thread Starter
Instructor
Joined: Oct 2004
Posts: 203
Likes: 0
Originally Posted by BLKTA
I'm confused as to why you are putting the sims in the front O2 locations. Is there a reason why? Putting O2's in the front two locations will cause problems because the PCM require the 2 front O2's for operation.
Burning Brakes
Joined: Jul 2002
Posts: 791
Likes: 52
Originally Posted by more carbon
with LGM headers you take the back sensors to the front and sim the front.the front wires are to short to tie into the headers.with their headers there is no post cat bungs.what i would like to know is will the sims keep the engine codes satisfied as to not brake any codes????
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Melting Slicks
Joined: Oct 2002
Posts: 2,200
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Originally Posted by more carbon
LGM's about to go on.front O2's are taken out of the loop.will sims keep engine light from coming on?????any help thks.
Safety Car
Joined: Jul 2002
Posts: 3,874
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From: Fishing Somewhere Cold
St. Jude Donor '11-'12-'13, '15
In my case there have been no codes, no engine light etc...from having the sims in place (I also have LG headers). Keep them as far as possible from the headers to protect from heat damage. I wrapped mine in thermal reflective tape and positioned them as far from the pipes as sposs. NO CODES, 9 months! Make sure that when you put the O2 sensors back on that you now route the driver side to the driver side pipe and the pass. one to the pass. side!!!!
