Do O2 Simulators Make a engine run richer than The Regular O2 Sensors behind the Cats
05-16-2002 | 01:56 PM
#1
Thread Starter
Teching In
Joined: Mar 2002
Posts: 37
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From: Dingess, WV 25671
Do O2 Simulators Make a engine run richer than The Regular O2 Sensors behind the Cats Hi Gang!
I am sorry to bother you folks, but I really need to know if this is normal.
I have a 2002 Silverado with a 5.3. I removed the Cats and I am using O2 simms in the place of the rear O2 Simms. If I let me truck set and Idle for 2 or 3 mins and give it the gas I can see Dark Blue smoke behind that stinks Like unburnt raw fuel. Is this normal without cats or do I have a problem.
How much Effect does the rear O2 Simms have on Air Fuel Ratio. Does it take this much fuel to keep the Cats burning is this why That I see this????????
Thanks Lee Stroud. <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
I am sorry to bother you folks, but I really need to know if this is normal.
I have a 2002 Silverado with a 5.3. I removed the Cats and I am using O2 simms in the place of the rear O2 Simms. If I let me truck set and Idle for 2 or 3 mins and give it the gas I can see Dark Blue smoke behind that stinks Like unburnt raw fuel. Is this normal without cats or do I have a problem.
How much Effect does the rear O2 Simms have on Air Fuel Ratio. Does it take this much fuel to keep the Cats burning is this why That I see this????????
Thanks Lee Stroud. <img border="0" alt="[Fluffy]" title="" src="graemlins/fluffy.gif" />
05-16-2002 | 02:51 PM
#2
Re: Do O2 Simulators Make a engine run richer than The Regular O2 Sensors behind the Cats I didn't see that on my 99 SS.
Moving to tuning section.
https://ls1tech.com/ubb/cgi-bin/ulti...;f=23;t=001031
<small>[ May 16, 2002, 02:54 PM: Message edited by: WILWAXU ]</small>
Moving to tuning section.
https://ls1tech.com/ubb/cgi-bin/ulti...;f=23;t=001031
<small>[ May 16, 2002, 02:54 PM: Message edited by: WILWAXU ]</small>
