93 guys with 383s, what O2 sensors are you guys using.

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04-17-2004, 10:14 AM

wickdracer

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Join Date: Apr 1999

Location: Los Angeles, CA

Posts: 101

93 guys with 383s, what O2 sensors are you guys using.

My car is running super rich. Help me need some advice.

04-17-2004, 10:29 AM

ROADRAGE

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Join Date: Dec 2001

Location: Lake Orion Mi

Posts: 886

o2 isnt the problem if it's working. Have you been tuned

04-17-2004, 10:41 AM

wickdracer

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Join Date: Apr 1999

Location: Los Angeles, CA

Posts: 101

Yup i've been tuned. My O2 to sensors are not going into closed loop.

04-17-2004, 12:30 PM

Wilson

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Join Date: Dec 1969

Location: Honolulu, Hawaii

Posts: 234

Quote:

Originally posted by wickdracer
Yup i've been tuned. My O2 to sensors are not going into closed loop.

Your problem is because the 93's uses single wire non-heated O2 sensors. This is a problem when you have Long Tubes because the O2 sensors dont get hot enough to go into closed loop. Most of the LT 93 guys end up converting to 94+ heated O2 sensors. You will need to wire up some extra +12 & ground to the new 94+ O2 sensor.

Heated O2 Sensor diagram

Last edited by Wilson; 04-17-2004 at 12:37 PM.