3800 series II swap, please read :)

David A. Cooley n5xmt at bellsouth.net
Fri Jul 9 22:49:26 GMT 1999


At 06:32 PM 7/9/99 -0400, you wrote: 
>
> Hello all... 
>  
> I hope everyone is well... I have been a reader of the list for some time
> now, and have been learning what I can from the archives, and this list. As
> an electrical engineering student, I've taken it upon myself to try a motor
> swap.  I am located in Toronto, and through the list, have found Terry Kelly
> in CA to help me.  Without him, I'm sure I'd be lost!  The reason I am
> writing concerns two problems I have had with the swap.  The 3800 series II
> motor is a 97, and was put into a 1988 Buick Lesabre T-type.  I am still
> using the original tranny (440-T4) and motor mounts. The ecm was changed with
> lots of online help from Terry, to a 92 bonneville , a 16141470 if I'm not
> mistaken, could be wrong there :)
>  
> The car has been running great for a while now... the VATS was disabled, and
> the tranny flags were set to a 440 as this ecm supports both the 440 and the
> 4t-60e.  The problems the car is having is VSS, and idle. the VSS the ecm
> see's is much more than it should be. The 440 has a 14tooth generator, and
> the 4t60e has a 31 I believe. The ecm see's approx double (not sure cause I
> don't know my actual speed) and the speedo was way off, so I changed to the
> 2k output of the ecm, and it is still off by about 20% or so. hoping for any
> input on this?
>  
> The idle problem is that of a not-so-smooth one. The coil pack has been
> swapped with one from a GTP and it didn't help. The plugs are brand new
> AC's.  The wires were changed. I have verified twice that there is no vacuum
> leak (pretty sure there!), I just pulled the injectors and found that they
> are NOT leaking at all... however I don't know if they are clogged. The motor
> had 5k km on it when I got it. and it runs really well outside of the idle
> not being silk like it should be.  I don't know if the MAF tables may effect
> the idle at all.. or if it's just running lean in general, but when it goes
> closed loop, it's still not silky.  Any help on any of this would be greatly
> appreciated..
>  



Kevin,
My 95 Lesabre had a very rough idle and would not smooth out... I pressure
cleaned the injectors on the car and it was hard to even tell the car was
running after that!

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           David Cooley N5XMT           Internet: N5XMT at bellsouth.net
     Packet: N5XMT at KQ4LO.#INT.NC.USA.NA   T.A.P.R. Member #7068
   Sponges grow in the ocean... Wonder how deep it would be if they didn't?!
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