How will a working smog pump alter wideband Air/Fuel readings? |
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How will a working smog pump alter wideband Air/Fuel readings? |
Ferg |
Apr 1 2014, 04:08 PM
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#1
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914 Guru Group: Members Posts: 5,948 Joined: 8-January 03 From: Boulder CO Member No.: 116 Region Association: None |
This could be a really silly question, but...
Went out for a drive a while back with Brant and used his wideband air/fuel tester to get a base line on how my 76 2.0 air/fuel mixture looks. Edit: Totally Stock Djet 2.0 We were getting readings close to at about 13.3 to about 14-14.5 at cruising/load. I know that is a little lean, but my smog pump is working, so wouldn't that trick the readings, and my actual is richer than whats read at the tailpipe? Does my logic make any sense? Ferg |
Krieger |
Apr 1 2014, 06:32 PM
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#2
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Advanced Member Group: Members Posts: 4,728 Joined: 24-May 04 From: Santa Rosa CA Member No.: 2,104 Region Association: None |
Why don't you do two tests the same day. Do a 15 minute drive with the system the way it is and record your readings. Then remove the belt driving the air pump and do the same drive. Report back to us the results.
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