DIY_EFI Digest V4 #651

[Bruce Plecan]

----- Original Message -----
From: Laura & Neil <neilaura at accessworldnet.com>
To: <diy_efi at efi332.eng.ohio-state.edu>
Sent: Saturday, November 20, 1999 9:58 AM
Subject: Re: DIY_EFI Digest V4 #651

91 is ecm not pcm.
Grumpy


| > Date: Fri, 19 Nov 1999 18:40:07 -0500
| > From: Darren Floen <dfloen at tbaytel.net>
| > Subject: Speed sensor
| >
| > Hi everyone.A while back i was asking questions about fuel injection for
| > a 4.3,being swapped into a Toyota.Well,i have now found a newer engine
| > to use.I picked up a 91 4.3 throttle body engine,from a Safari van.
| >
| > So now i need a wiring harness.I contacted Howell and Painless.Howell
| > says a speed sensor is not required for the engine to run smoothly.Matt
| > at Howell says that it will only affect the EGR,and not the IAC.
| > Painless says that the engine will always be stalling on deceleration.
| >
| > My question is this.How will the IAC motor reset its position if it
| > doesn't have a speed sensor input?It is my understanding that this
| > happens when the vehicle reaches 30 MPH.
| >
| > There is no smog testing where i live.
| >
| > So,do i need a speed sensor or not?
| >
| > Anyone know of any good websites dealing with 4.3 swaps and such?
| >
| > Thanks,
| >
| > Darren Floen
| > Thunderbay,Ontario
| >
|
| I assume this is going to be an engine and trans swap Darren
| The stock trans for the late 4.3 G.M's is the TH700 or derivatives. This
uses a PCM
| controlled lock-up converter that is activated with the vehicle speed as
one of the
| inputs.
| I'd say the speed sensor is very nessesary.
|
| Neil
|