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bpu699 bpu699 is offline
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Join Date: Apr 2007
Location: wisconsin
Posts: 2,539
Itssss baaackkk...

Just once, I would love to fix something and have it stayed fixed....

Car starts fine with the new msd Cdi. Runs great, driven for a month with no issues.

Started it today, and noticed that the afr meter said it was really rich at less than 10 at idle. Odd.

I slowly add throttle. Stays at less than 10. Then at 3200 rpm goes to 14.7. Driving it, it's 13-14. Let off the throttle, at idle, and the afr slowly drops back to 10.

Seems like a lambda issue. I disconnected the 02 sensor, and it fixed the issue. Afr goes to 13.5. Reconnect, and it slowly gets richer and richer. Disconnect, and its fixed.

Odd. Is there some intermittent fault in the lamba system? I should note that's its cold today. 40 degrees or so. Prior to this, it's been in the 70-80s...

Prior to this, the lambda system kept the afr at exactly 14.7 at idle...

I posted another thread about me fuel pumps, as they also now seem louder.

What the heck is causing this?

Bo
Old 11-01-2014, 06:39 PM
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