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Message: <blockquote data-quote="EF5.0" data-source="post: 1066301" data-attributes="member: 13818">Had some free time and a new OBD-I scanner to toy with so I ran the codes from my CEL today. All but two I had known about and fixed (EGR, ignition module). What I didn't know about may help my car idle a little smoother. MY O2 sensors are reading lean, I read that cleaning the MAF and Air filter may fix this some I'm going to try that this week. Second new to me code is 212: Loss of Ignition Diagnostic Monitor Signal/SPOUT circuit grounded. Also, I got code 543: Fuel pump secondary circuit fault. I searched that on here and found that it may be the PIP in the Dizzy going bad, this code may explain why at idle my RPM's will drop to about 400-500 and the Voltmeter needle drops to about half way to it's normal position. I'm going to clear the codes and see what comes back, since all but two were fixed already. Advice is greatly appreciated. I'm a little worried about messing with the dizzy, don't want to mess anything up.</blockquote>