LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Do I NEED 02 Sims?????

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Old

11-18-2003, 11:52 PM

#1

95patriotZ

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Join Date: Apr 2003

Location: Wisconsin

Posts: 346

Do I NEED 02 Sims?????

I just gutted my cat and read that I need 02 sims since I did that. Is it true? What will happen if I don't get them? Just an SES light, or something more? Any insight would be great!!!!

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11-18-2003, 11:56 PM

#2

CrippleFightin

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Location: Plainfield IL

Posts: 923

For the 2 after the cats, NO you dont NEED them....only way you NEED them is if you cant stand looking at the Service Engine Soon light...

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Old

11-19-2003, 12:39 AM

#3

94GrayV6

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Location: Orlando, FL

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Isn't your car OBD1? You only have 2 sensors, and both are before the cat right? You need both those 02s.

O2 simms are only for OBDII cars (4 O2s).

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Old

11-19-2003, 01:19 AM

#4

revtime

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Location: Kansas City suburb of

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You only need O2 sims for OBD2 cars that no longer have cats, they trick the PCM into thinking that the cats are still there and are functioning properly.

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