GM speed sensors & ECM suggestions

[TMatthe at aol.com]

In a message dated 97-10-05 16:59:34 EDT, you write:

>  The 1st things that scares me are the vehicle speed sensor and the engine
>  speed sensor & position sensor. I would appreciate any input/insight into
>  these obstacles like whether they use a magnetic missing tooth or hall 
> effect
>  set-up, etc.
Do you have a GM Turbo 350/400 tranny? Howell Engine dev. has a VSS that
screws onto the tranny at the speedo cable, but you don't need VSS if you
ground the P/N wire in the ECM harness. Engine speed can be read if you adapt
a GM 7 pin module to a magnetic AMC dist.
>  
>   Does anyone have a suggestion for a particular GM ECM that would work in 
> this
>  application? Or any references available that might help me choose the
right
>  one? Below is a list of requirements for this injection system.
The GM 1227730, used in 90-92 TPI cars, and many 4 and 6 cyl GM's also...
>  
>   -8 injector drivers for sequential injection
Nope, only 2- So you'd have to batch it... GM GN Turbo ECM only has 6 drivers
if I remember correctly...
>   -Speed-density system (saves me the hassle of fabricating a tight intake
&
>  MAF upstream of the air door.
Works here with no problem...
>   -Ability to interface with a GM transmission control module (I'll be
using 
Nope , you could get a GM diesel truck transmission controller...
> a
>  4L60E behind the engine)
Doesn't have a speedo output in most apps- I would recommend the noncomputer
4L60 (aka 700R4)...
>   -Can't be an EEPROM type GM ECM since the CarPROM software can't handle 
> those
>  boxes.
The EEPROM GM ECM is really what you want, but no one to my knowledge has a
software pkg. to reprogram these for sale yet to my knowledge...
93 LT1's are SD, but I believe that they are batch fire, and harder to find,
and I do not think that they have the intergrated transmission controller.
>   -Knock sensor inputs (I think GM calls it ESC) since this engine will be
10
>  to 1 CR
No problem here.
>   - And all the other stuff that should be a gimme on a GM box like Idle
air
>  control, EGR control, canister purge control & cruise control servo
control.
Cruise control in pre OBD II GM's is handled by a seperate controller I
believe, rest is no problem...
Tom M.