DIY_EFI Digest              Sunday, 27 July 1997        Volume 02 : Number 251

In this issue:

	Re: MAP SENSOR
	RE: Ignition Controllers

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From: A70Duster@xxx.com
Date: Sat, 26 Jul 1997 12:02:28 -0400 (EDT)
Subject: Re: MAP SENSOR

- --PART.BOUNDARY.0.15874.emout07.mail.aol.com.869932945
Content-ID: <0_15874_869932945@xxx.2820>
Content-type: text/plain

Something from the past.  It is pretty linear.

- --PART.BOUNDARY.0.15874.emout07.mail.aol.com.869932945
Content-ID: <0_15874_869932945@xxx.2821>
Content-type: text/plain;
	name="MAP_SENS.TXT"
Content-Transfer-Encoding: quoted-printable


GMC EFI engine MAP sensors calibration data, page one
=0D
Input	model 460	model 835	model 834
IN Hg	output VDC	output VDC	output VDC
0	4.620   	4.602		0.560
- -1.0	4.442		4.424		0.741
- -2.0	4.264		4.249		0.923
- -3.0	4.086		4.075		1.105
- -4.0	3.908		3.899		1.287
- -5.0	3.73		3.724		1.469
- -6.0	3.552		3.548		1.652
- -7.0	3.374		3.370		1.834
- -8.0	3.196		3.195		2.016
- -9.0	3.018		3.019		2.199
- -10.0	2.84		2.842		2.380
- -11.0	2.662		2.667		2.562
- -12.0	2.484		2.485		2.745
- -13.0	2.306		2.303		2.928
- -14.0	2.128		2.121		3.111
- -15.0	1.95		1.940		3.293
- -16.0	1.772		1.758		3.475
- -17.0	1.594		1.577		3.657
- -18.0	1.416		1.395		3.840
- -19.0	1.238		1.219		4.022
- -20.0	1.178		1.043		4.204
=0D
b=3D4.610  =

m=3D0.176
=0D
Connector	green	red	gray
output wire	green	green	green
=0D
sensor	0 to 28"Hg	0 to 28"Hg	0 to 28"Hg
range	direct acting	direct acting	reverse act.
=0D
output volts	0.175V	0.178V  	0.182V
per inch Hg.
input
=0D

GMC EFI engine MAP sensors calibration data, page 2.
=0D
Input	model 833	Input	model 886
?	output VDC	IN H2O	output VDC
0	4.629		0.0	2.347
0.1	4.612		0.5	2.435
0.2	4.593		1.0	2.522
0.3	4.575		1.5	2.610
0.4	4.557		2.0	2.698
0.5	4.539		2.5	2.786
0.6	4.521		3.0	2.874
0.7	4.502		3.5	2.961
0.8	4.484		4.0	3.049
0.9	4.466		4.5	3.136
1	4.448		5.0	3.224
1.1	4.429		5.5	3.312
			6.0	3.395
				=

sensitivity			sensitivity	=

0.182V/inch Hg		0.175V/inch Hg	=

=0D
Connector	blue		Connector	yellow
output wire	gray		output wire	green
wire stripe	black trace	wire stripe    ??
sensor	???	         	sensor	-25" to +9#
range	reverse act.		range	reverse act.
=0D
Data was given in inches water for the 886. Unit of measure were not =

specified for the 833. Possibly the data represents about 0.18 volts =

output per inch mercury pressure input for both 886 & 833.
=0D


- --PART.BOUNDARY.0.15874.emout07.mail.aol.com.869932945--

------------------------------

From: Tim Drury <tim.drury@xxx.edu>
Date: Sat, 26 Jul 1997 18:17:17 -0400
Subject: RE: Ignition Controllers

>Have any one seen the instrument that Link is offering ? Its called
>Knocklink.
>Its made so You can tune it to hear pinging from different engines and it=
>s
>cheap to ($100,)

That's pretty cool.  Do you have more info?  What does knock sound
like?

- -tim

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------------------------------

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