GM ECMs and VSS

Wed Mar 11 03:44:25 GMT 1998

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There were several postings about Vehicle Speed Sensors and
GM ECMs, well I fell over this, and thought others might find it
interesting.
1)  Two Pulse, 2000 pulses per mile (PPM), used on all TBI ecms
     thur 92.  All TPI engines  85-89.
2)  Four pulse, (4000 ppm), sine wave  A/C, 90-93 TPI, 92-93 LT1,
3)  40 tooth reluctors, 93+ Newer trucks with Auto tranny, 94+=20
     RWD cars with auto.  Pick-ups with ABS.
4)  17 tooth reluctor 93-97 LT1 BW 6 speed
5)  11 tooth reluctor 93 LT1 BW 6 speed Wide Ratio (3.35 1st)
HTH Bruce    This is enough to drive one to wear a Cone Shaped
                    Hat, at least in private...... =20

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<DIV><FONT color=3D#000000 size=3D2>There were several postings about =
Vehicle Speed=20
Sensors and</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>GM ECMs, well I fell over this, and =
thought=20
others might find it</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>interesting.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>1)&nbsp; Two Pulse, 2000 pulses per =
mile (PPM),=20
used on all TBI ecms</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>&nbsp;&nbsp;&nbsp;&nbsp; thur =
92.&nbsp; All TPI=20
engines&nbsp; 85-89.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>2)&nbsp; Four pulse, (4000 ppm), =
sine wave&nbsp;=20
A/C, 90-93 TPI, 92-93 LT1,</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>3)&nbsp; 40 tooth reluctors, 93+ =
Newer trucks=20
with Auto tranny, 94+ </FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>&nbsp;&nbsp;&nbsp;&nbsp; RWD cars =
with=20
auto.&nbsp; Pick-ups with ABS.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>4)&nbsp; 17 tooth reluctor 93-97 LT1 =
BW 6=20
speed</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT><FONT color=3D#000000 =
size=3D2>5)&nbsp; 11=20
tooth reluctor 93 LT1 BW 6 speed Wide Ratio (3.35 1st)</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2>HTH Bruce&nbsp;&nbsp;&nbsp; This is =
enough to=20
drive one to wear a Cone Shaped</FONT></DIV>
<DIV><FONT color=3D#000000=20
size=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
Hat, at least in private......&nbsp; </FONT></DIV></BODY></HTML>

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