Odd! My buddy has a 98 3.9L, he had an increase of about 1 mpg with the MSD.
Did you disconnect the power ( battery)? Mine was coughing and spitting when
I forgot to do this once.
Mark
http://home.att.net/~flyboy01/
-----Original Message-----
From: Alan Short <ashort@flash.net>
To: dakota-truck@buffnet.net <dakota-truck@buffnet.net>
Date: Wednesday, January 27, 1999 6:09 PM
Subject: Re: DML: MSD 6A - Mileage
>Dennis Pendleton wrote:
>>
>> I just installed a MSD 6A ignition on my '97 Sport 3.9L and my mileage
went from
>> ~20 to ~16 mpg's! I thought these things were supposed to increase your
mileage
>> not take it away. Acceleration is much smoother and it seems to have
improved
>> my power but...
>>
>> I have run 2 tanks of gas thru since the install and kept my foot out of
it on
>> the second tank thinking it was my driving but the mileage seems the same
>> regardless. I also installed Magnecore's and Platinum 4+'s along with
the
>> ignition but they wouldn't have any thing to do with the mileage
decrease.
>>
>> Anyone seen the same thing?
>Are you supposed to run platinum plugs with MSD?Alan S.
>
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:12:16 EDT