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Old Jun 11, 2006 | 07:34 PM
  #1  
NoItsNotForSale's Avatar
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From: Bonham TX
Car: 87 & 89 Iroc's
Engine: 5.0 - 5.7
Transmission: 700R's
Axle/Gears: 2.77 - 3.70
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O2 fluctuates wildly from 250-800. Lean at idle rich over 2000.

At idle spark advance fluctuates from 25-27.

Is this normal?
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Old Jun 11, 2006 | 09:23 PM
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Fast355's Avatar
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Originally Posted by NoItsNotForSale
O2 fluctuates wildly from 250-800. Lean at idle rich over 2000.

At idle spark advance fluctuates from 25-27.

Is this normal?
Sounds like it is working just fine.
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