TYPE I / TYPE II DIS C3I MODULE WIRING

[TBK]

One little good point you made. GM keys everything. Unless they cut the
keyways, If it fits, it likely the compatable type.

TK
-----Original Message-----
From: Scott Shotton <stucky at interaccess.com>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Wednesday, February 18, 1998 9:50 PM
Subject: Re: TYPE I / TYPE II DIS C3I MODULE WIRING


>The modules are not direct swaps.  With schematics and some minor
>harness modifications, you may be able to get them to work.  You might
>need to change to a different plug in, they are "keyed" to fit the
>appropriate modules.
>
>I have seen quite a few type I coils fail (hard start cold, about 30 deg
>and below).  Insufficinet avaliable voltage.  Another guess as to why GM
>changed:  replacing individual coils is cheaper then replacing all
>three.
>
>Off the subject,  GM 3.8 vin 3's have a nylon cam gear.  Around 100,000
>miles (especialy in climates that vary in temperature causing the nylon
>to expand and contract) they spit the teeth and smash the valves.
>Replacement gears are steel.  If you are near the milage and havent donr
>the gears and chain, you might want to think about it.  3.8 vin C (3800)
>has a steel cam gear factory.
>
>
>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
>