[DML] Re: running rough after tune-up
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[DML] Re: running rough after tune-up



Check out the Lambda system. Make sure it is running. You may have to
lean the mixture to get it to run right. Too often instead of
replacing parts someone will figure they can make it run better by
twiddling (I don't call it "adjusting") things. If the mixture is too
rich the Lambda will hardly run at all trying to lean the mixture. If
the Lambda is dead it can have these symptoms. If the Lambda is not
running either the relay is bad or the O2 sensor is contaminated. Most
common problems. Also make sure the little wire on the right side of
the manifold toward the front of the motor is connected to the
manifold (grounded) and it is still plugged in. This can also be the
CPR and/or vacuum leaks. Besides looking for leaks make sure all the
hoses are hooked up correctly. Check the mechanical AND vacuum advance
too. Make sure all the ignition wires are snapped tightly onto the
sprak plugs.
David Teitelbaum
vin 10757



--- In dmcnews@xxxxxxxxxxxxxxx, "Bill Koenig" <dmc06976@...> wrote:
>
> i just recently did a tune-up on my D - had the fuel injectors
> cleaned, replaced vaccuum hoses, coil, plugs, wires, cap, rotor,
> seals, washers, gaskets, fuel filter, air filter, oil filter, main
> fuel line, etc.  when i first started it up it ran okay, but after it
> would warm up i noticed the idle was really erratic.  it would dip
> down to approx 600rpm, then shoot up to 1250 or so.  it seems like the
> 








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