TYPE I / TYPE II DIS C3I MODULE WIRING
Shannen Durphey
shannen at mcn.net
Thu Feb 19 05:02:51 GMT 1998
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TBK wrote:
> I have a VIN 3 3.8L Buick V6. It appears the Type I C3I
> coil pack (opposite side output) was swapped to a Type II
> (same side output) to correct a miss in the engine.. Can
> someone confirm, deny, or supply dis-information regarding
> the wiring being different between the two. I suspect the
> two can not be swapped without changing the sensor, EST,
> bypass, etc wiring. Drawing appear to show them as being
> different. Are they direct swaps? True or false. Terry
> Kelley
From 1986 Olds Service manual:
"Two style Module/Coil assemblies are used; 'TYPE I and TYPE
II'. The wiring harness and sensors are interchangeable
between both types."
Digging further... it appears that the only difference is
type I has a power wire in connector location P to power the
coils, which type II does not use. Even looks like units
can be interchanged between sequential fire and batch fire
engines. Some wires are omitted in batch fire applications,
mainly those for separate cam sensor. Diagnostic charts
differ some also. I don't know what vehicle used the code
"C" engine... what's year, make, model?
Shannen
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<P>TBK wrote:
<BLOCKQUOTE TYPE=CITE> <FONT COLOR="#000000"><FONT SIZE=-1>I have
a VIN 3 3.8L Buick V6.</FONT></FONT> <FONT COLOR="#000000"><FONT SIZE=-1>It
appears the Type I C3I coil pack (opposite side output) was swapped to
a Type II (same side output) to correct a miss in the engine..</FONT></FONT>
<FONT COLOR="#000000"><FONT SIZE=-1>Can someone confirm, deny, or supply
dis-information regarding the wiring being different between the two.</FONT></FONT>
<FONT COLOR="#000000"><FONT SIZE=-1>I suspect the two can not be swapped
without changing the sensor, EST, bypass, etc wiring.</FONT></FONT> <FONT COLOR="#000000"><FONT SIZE=-1>Drawing
appear to show them as being different.</FONT></FONT> <FONT SIZE=-1>Are
they direct swaps?</FONT> <FONT COLOR="#000000"><FONT SIZE=-1>True or false.</FONT></FONT>
<FONT SIZE=-1>Terry Kelley</FONT></BLOCKQUOTE>
From 1986 Olds Service manual:
<P>"Two style Module/Coil assemblies are used; 'TYPE I and TYPE II'.
The wiring harness and sensors are interchangeable between both types."
<P>Digging further... it appears that the only difference is type I has
a power wire in connector location P to power the coils, which type II
does not use. Even looks like units can be interchanged between sequential
fire and batch fire engines. Some wires are omitted in batch fire
applications, mainly those for separate cam sensor. Diagnostic charts
differ some also. I don't know what vehicle used the code "C"
engine... what's year, make, model?
<P>Shannen
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