There is no O2 reading on the test. From the Va. Dept of Environmental Quality, here is the definition of:

Dilution- This is a measurement of carbon monoxide and carbon dioxide in the exhaust stream. If the vehicle being tested is determined to have "invalid dilution," that could mean that the vehicle has an exhaust system leak, or some other problem that prevents a valid sample of exhaust emissions that must be repaired in order to be properly tested for emissions.

Odo reading 156032 miles, 6 cyl as well, M103, OBD-1.

http://www.deq.virginia.gov/mobile/mobfail.html

http://www.deq.virginia.gov/mobile/homepage.html

__________________
Regards

Warren

Currently 1965 220Sb, 2002 FORD Crown Vic Police Interceptor

Had 1965 220SEb, 1967 230S, 280SE 4.5, 300SE (W126), 420SEL

ENTER > = (HP RPN)

Not part of the in-crowd since 1952.