Getting wet feet....junkyard TBI

Janssen, John John.Janssen at SomervillePackaging.com
Tue May 29 14:58:55 GMT 2001


Hello all,


	I am new to the list and am just soaking up the knowlege that flows
from this list, but to be honest what I had originally thought would be a
fairly simple upgrade - install a junkyard TBI on my 258/ 4.0 head jeep
motor now looks like a HUGE task. I pulled the tbi/harness/sensors/ ecm(747)
from an '86 astro 4.3 and was under the impression that once I "fixed" the
harness (got the pinouts - thanks) then I would be off to the races so to
speak. 

	Am I overanalyzing things? What you guys are working at doing is
tuning your ECMS for MAX performance correct? but in my case just hooking
everything up (closed loop - will do timing as well) should work fine
correct? Will I have to do any programming?

One part I need yet - the 5 prong chip that I have to swap out the GM HEI
distributor to run closed loop timing - anyone know an application that I
can order this from?

THX
JJ Ont. Can.
'81 CJ7
258, 4.0Head, Free flow exhaust, Currently 2100motocraft but soon to be
TBI!!!!

----------------------------------------------------------------------------
To unsubscribe from gmecm, send "unsubscribe gmecm" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org




More information about the Gmecm mailing list