Too much Oxygen for Smog
Too much Oxygen for Smog
I have a forum member helping, but other input is always welcome.
I have 2 days to pass smog, initially it was too rich and carbon. Air pump was shorted. Fixed it.
Now it is reading too much oxygen. Exhaust has no holes I can see. Hoses are all connected aside from one from the airpump to air box. Passed without that one before.
Any ideas? Trying to get this thing registered under my name and on the road, but smog is required here in sunny Hellifornia.
I have 2 days to pass smog, initially it was too rich and carbon. Air pump was shorted. Fixed it.
Now it is reading too much oxygen. Exhaust has no holes I can see. Hoses are all connected aside from one from the airpump to air box. Passed without that one before.
Any ideas? Trying to get this thing registered under my name and on the road, but smog is required here in sunny Hellifornia.
Joined: Jul 2013
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I have a forum member helping, but other input is always welcome.
I have 2 days to pass smog, initially it was too rich and carbon. Air pump was shorted. Fixed it.
Now it is reading too much oxygen. Exhaust has no holes I can see. Hoses are all connected aside from one from the airpump to air box. Passed without that one before.
Any ideas? Trying to get this thing registered under my name and on the road, but smog is required here in sunny Hellifornia.
I have 2 days to pass smog, initially it was too rich and carbon. Air pump was shorted. Fixed it.
Now it is reading too much oxygen. Exhaust has no holes I can see. Hoses are all connected aside from one from the airpump to air box. Passed without that one before.
Any ideas? Trying to get this thing registered under my name and on the road, but smog is required here in sunny Hellifornia.
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From: Norcal/Bay Area, CA
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From: https://www2.mazda.com/en/100th/
Old [Sch|F]ool
Joined: May 2001
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From: Cleveland, Ohio, USA
Not really though. They dumped air in the exhaust to continue to burn off all the fuel that didn't burn in the engine because it's hard to get a rotary to idle and light cruise at stoich, so they figured they could just make the exhaust stoich even if all the air wasn't going through the throttle body.
It's kind of funny, Chrysler for years and years was too cheap to use a MAF sensor, but when they had to use air injection on some applications in the OBD-II era, they stuck a MAF hotwire in the air pump's outlet hose.
It's kind of funny, Chrysler for years and years was too cheap to use a MAF sensor, but when they had to use air injection on some applications in the OBD-II era, they stuck a MAF hotwire in the air pump's outlet hose.
Last edited by peejay; Sep 1, 2019 at 06:06 PM.
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Ernesto13B
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Jan 8, 2008 01:46 AM