Mechanics

FORD E-SERIES VAN SENSOR PROBLEM

1993 Ford E-Series Van • 125,000 miles

Failed emmission test HC AT 2500 =708.6 IDLE =627.4
@ 2500 CO% 1.11 AND.87 @ IDLE. @ 2500 CO2% 8.9865 & @ IDLE 8.1391 WHAT COULD IT BE
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Guest
February 10, 2013.




Could be a lazy o2 sensor, rich mixture or contaminated oil. How old are the spark plugs?

Roy

ASEMaster6371
Feb 10, 2013.


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