Re: Failed Emissions Inspection. AGAIN!!!!!

["content22207" <brobertson@xxxx>]

Are you SURE everything's cool with your engine? Even without a Lamda
system my vehicle came with a current PA emissions sticker. Check your
tailpipes for soot. If it's there, you've got dirty combustion. On the
ignition side:

1) Advance timing for longer burn in the cylinder. This is what
domestic manufacturers did throughout '70s to please government (my
'77 Lincoln is stickered 17 degrees BTC, '78 is 20 degrees). Cuts down
on HP so you'll want to move back afterwards.

2) Buy a high voltage coil. This one's permanent -- once you fire
40,000 volts you'll never go back to 18,000. Best $30.00 you can spend.

3) In conjunction w/ 2), increase plug gap to spread more fire
throughout cylinder. My D is gapped .36 to .40, can't remember
exactly. Rather than high resistance plugs, I prefer low resistance
coupled to a hot coil (am burning 6 ohm Delcos).

4) Switch to manual idle circuit and slow RPM's as much as possible. 

On the fuel side, make sure neither vacuum hose to control pressure
regulator is sucking from warm engine (especially the line with delay
valve). Am novice on Lamda system (never had one), but perhaps you
could be first to try removing from a factory block (see message
#32091). Obviously you don't need Lamda in Pennsylvania. Is always the
controversial fuel mixture screw...

Do testers know car is NOT dual exhaust? (Do they have lower
tolerances for each pipe of a dually?)

Go ahead and pull a plug or two. C'mon, it only takes a second.
Something might actually be wrong in there (oil -- horrors!).

Bill Robertson
#5939

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