One member explained his Vanagon was running rich at idle but OK at speed
based on his failed smog test.  Another member suggested this could be
caused by leaking injector seals.

My 1.9L Digijet Vangon is running rich also.  My injector seals look like
crap.  How could bad seals cause the van to run rich?  This would be an easy
fix.

Any other suggestions?  My temperature sensors appear to be working fine
based on identical 4kohm readings for T2 and the air temp sensor with a cold
engine.  The aux air valve is working fine.  I am still learning how to
evaluate the other circuits.  My smog test is coming in March.  I would like
to be ready for it.  Thanks for your help.

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