| Re: [GMCnet] no spark on HEI [message #323726 is a reply to message #323722] |
Sun, 10 September 2017 18:15   |
Gary Worobec
Messages: 867
Registered: May 2005
Karma:
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Senior Member |
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Ken, It's the seven pin module. The distributor is controlled by the EBL. I got rid of the Paterson Pertronics when I installed the Howell Efi
Thanks,
Gary Worobec
> On Sep 10, 2017, at 3:35 PM, Ken Henderson wrote:
>
> Gary,
>
> What I haven't heard is what type of Patterson distributor you have. If
> it's controlled by the EFI/EBL, then it's certainly one with a 7-pin OEM
> type HEI. If it's NOT controlled by the EFI's ECM, then it may be the
> original '73 points-type upgraded by Dick P. with a Pertronix 1181 kit.
> Or, it may be a non-computer-controlled HEI with a 5-pin module. There may
> even be other configurations with which I'm not familiar.
>
> You've got to determine which of those you have before searching for a test
> replacement.
>
> Ken H.
>
>
>> On Sun, Sep 10, 2017 at 2:19 PM, Gary Worobec wrote:
>>
>> Hi folks,
>> Tried to fire up the coach this morning and lots of gas, no spark.
>> Admittedly I have not run it for a couple of months now. 455 with Howell
>> EFI/EBL and a Paterson HEI distributor. All the fuses are good in the
>> Howell and no obvious wiring damage from rodents. I’m leaning towards the
>> ignition module, however no spare. I’m not on the road so no problems
>> there. I’m not sure if Dick Paterson’s modules are special or just stock GM
>> parts. If not I’ll get one from NAPA tomorrow. I did send him an email.
>> Does anyone know if you can run a diagnostic off of the EBL and the laptop
>> to narrow the issue down. In near 12 years this is the first time the motor
>> has not fired up with the EFI/HEI setup. Usually a couple of seconds on the
>> starter and away it goes.
>>
>> thanks for any insights.
>>
>>
>>
>> Gary Worobec
>> 73 Glacier 455
>>
>>
>>
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