MPI and sequential injection

[George M. Dailey]

Thanks Fred. I'm farily certain the ecm are the same now. I think I'm goin
to try and help him get his car going. I'll convert the harness from
sequential to MFI and land the combanation sensor on the coil pack module as
my chilton books says plus a prom change. And, I'll also undo what the jack
legg did. I'm surprised your book did not list the 3.0, then again, it might
be an 87 - 88 model engine. Surprise surprise.

thanks for the help.
GMD
At 11:03 AM 4/1/97 -0500, you wrote:
>> Question: A friend has a '86 oldsmobile royal with a 3.8L (sequential
>>  injection, I think). He blew the motor and purchased a 3.0L '86 olds or
>>  buick engine instead, by mistake. Were all 3.8L engines sequential for
>this
>>  year and were all 3.0L just PFI?
>
>According to the Chilton Manual I have, all of the 3.8L in 1986 are of the
>sequential injection variety, VIN code C, unless they were supercharged, then
>they are MFI, VIN code 3.  This is the identical engine that I have... VIN
>code C.
>
>1986:
>R   2.5L   4cy   TBI
>W  2.8L   6cy   MFI (High output)
>X   2.8L   6cy   2BC
>3   3.8L   6cy    MFI
>B   3.8L   6cy    MFI
>
>(on the Buicks of that year the 3.8L were Sequential)
>
>The 3.0 was not in any of the olds during 1986, according to the Chilton
>Chart I have. And no, I have the book right side up :)  I think I've seen
>them though before I got the LeSabre, but then again, all the GM cars look
>the same to me.  I thought my LeSabre was something else (though it was
>mis-labeled) before it was confirmed it was a LeSabre.
>
>>  Did they use the same ECM, just different proms?
>
>Yep.  The ECM for the 3.8L should be #1227148, with the "CLA 0570" Eprom.
> This is the same ECM used for the Buick GN.  
>
>>  Correct me if im wrong.
>
>Honestly, I don't know.  The Chilton's book I have just says "ECM", with no
>part numbers.
>
>>  with no success. He simply cut and spliced the colors that seemed to match
>>  the closest :()
>
>I hate to say this, but what an asshole :)
>
>Fred
>
>