[DML] Re: Maybe Catalytic?
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[DML] Re: Maybe Catalytic?

You didn't mention how long it has been since you did any type of
tune-up work on the car. Fresh gas is always a good thing to have.
Using a good injector cleaner once in a while is also a good idea. I
don't think you will change the #'s much using different octane. IMHO
I suggest a tune-up changing the fuel filter, spark plugs, ignition
wires, distributer cap and rotor, all the little vacuum lines, and
cleaning and testing the injectors. I also would check the ignition
timing and the mechanical and vacuum advance. If all this doesn't
improve your #'s you  *may*  need a catalytic converter.
David Teitelbaum
vin 10757

--- In dmcnews@xxxxxxxxxxxxxxx, "Redgee Capili" <redgee@xxxx> wrote:
> Hi Everyone
> It's been a while since I've written the group.  I read through some
of the
> archives (lots of great information there), but I was hoping to get some
> experienced minds on this one.
> I recently failed my smot test (California), and the results were as
> follows:
> At 15mph
> RPM - 1916
> CO2 - 14.2
> O2 - 0.1
> HC - 141max, 45ave, 94meas
> CO - 0.99max, 0.16ave, 0.94meas
> NO - 1148max, 434ave, 45meas
> Result - Pass
> At 25mph
> RPM - 1903
> CO2 - 14.4
> O2 - 0.5
> HC - 113max, 33ave, 15meas
> CO - 0.79max, 0.14ave, 0.00meas <--- this showed normal after a
manual test
> NO - 978max, 357ave, 1787meas  <<<<< problem - pass is 1100
> Result - Fail
> The technician went through a series of checks based on the results
and he
> suggested either the fuel injection or fuel pump not sending enough ga

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