Lost spark. Has Howell EFI with EBL Change distributor, coil, and cap. Has 12.8 volts to dist. Still no spark. Found a wire from the EBL to the starter. That grounded to the exhaust manifold. Did that wire grounding. Kill the EBL? Anyone around Chamberland? Would my 403 ECM get him home? His cell 319-929-3583. Bob Dunahugh
Ken Sheffer stuck on I-90 in SD. Needs some advice
- Thread starter Bob Dunahugh
- Start date
Update…
I’m off the interstate. I got a Tow to Chamberlan SD.
I still have no spark.
Have 12v to coil. I replaced coil and dist cap, then replaced distributor. Still no spark.
I have Howell EFI with EBL
Anybody have any other suggestions?
Thanks,
Ken
--
Ken Shaffer
Marion Iowa
73 Canyon Lands, 455, Micro-level, Alum radiator, Alcoa wheels, Lenzi hubs/bearings, Howell EFI/EBL, Rostra Cruise, Custom interior
I’m off the interstate. I got a Tow to Chamberlan SD.
I still have no spark.
Have 12v to coil. I replaced coil and dist cap, then replaced distributor. Still no spark.
I have Howell EFI with EBL
Anybody have any other suggestions?
Thanks,
Ken
--
Ken Shaffer
Marion Iowa
73 Canyon Lands, 455, Micro-level, Alum radiator, Alcoa wheels, Lenzi hubs/bearings, Howell EFI/EBL, Rostra Cruise, Custom interior
does the fuel pump come on when the key is turned? It should come on for a second.
The wire to the starter tells the ECU the engine is cranking, hard to believe it would kill the ecu
BUT, if that wire is not connected to the starter I doubt the ECU would start the engine since it wouldn't know you are trying to start it.
That said you should still get spark, since the spark isn't controlled by the ECU, just the timing of the spark. Kinda points to the module or the pickup coil
maybe unplug the knock module.
Definitely call jimk in the morning
________________________________
From: Ken Shaffer
Sent: Monday, September 6, 2021 10:01 PM
To: gmclist
Subject: [GMCnet] Re: Ken Sheffer stuck on I-90 in SD. Needs some advice
Update…
I’m off the interstate. I got a Tow to Chamberlan SD.
I still have no spark.
Have 12v to coil. I replaced coil and dist cap, then replaced distributor. Still no spark.
I have Howell EFI with EBL
Anybody have any other suggestions?
Thanks,
Ken
--
Ken Shaffer
Marion Iowa
73 Canyon Lands, 455, Micro-level, Alum radiator, Alcoa wheels, Lenzi hubs/bearings, Howell EFI/EBL, Rostra Cruise, Custom interior
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
The wire to the starter tells the ECU the engine is cranking, hard to believe it would kill the ecu
BUT, if that wire is not connected to the starter I doubt the ECU would start the engine since it wouldn't know you are trying to start it.
That said you should still get spark, since the spark isn't controlled by the ECU, just the timing of the spark. Kinda points to the module or the pickup coil
maybe unplug the knock module.
Definitely call jimk in the morning
________________________________
From: Ken Shaffer
Sent: Monday, September 6, 2021 10:01 PM
To: gmclist
Subject: [GMCnet] Re: Ken Sheffer stuck on I-90 in SD. Needs some advice
Update…
I’m off the interstate. I got a Tow to Chamberlan SD.
I still have no spark.
Have 12v to coil. I replaced coil and dist cap, then replaced distributor. Still no spark.
I have Howell EFI with EBL
Anybody have any other suggestions?
Thanks,
Ken
--
Ken Shaffer
Marion Iowa
73 Canyon Lands, 455, Micro-level, Alum radiator, Alcoa wheels, Lenzi hubs/bearings, Howell EFI/EBL, Rostra Cruise, Custom interior
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
Replace the 7 pin module.
> does the fuel pump come on when the key is turned? It should come on for a
> second.
> The wire to the starter tells the ECU the engine is cranking, hard to
> believe it would kill the ecu
>
> BUT, if that wire is not connected to the starter I doubt the ECU would
> start the engine since it wouldn't know you are trying to start it.
> That said you should still get spark, since the spark isn't controlled by
> the ECU, just the timing of the spark. Kinda points to the module or the
> pickup coil
> maybe unplug the knock module.
>
> Definitely call jimk in the morning
>
> ________________________________
> From: Ken Shaffer
> Sent: Monday, September 6, 2021 10:01 PM
> To: gmclist
> Subject: [GMCnet] Re: Ken Sheffer stuck on I-90 in SD. Needs some advice
>
> Update…
> I’m off the interstate. I got a Tow to Chamberlan SD.
> I still have no spark.
> Have 12v to coil. I replaced coil and dist cap, then replaced
> distributor. Still no spark.
> I have Howell EFI with EBL
> Anybody have any other suggestions?
> Thanks,
>
> Ken
> --
> Ken Shaffer
> Marion Iowa
> 73 Canyon Lands, 455, Micro-level, Alum radiator, Alcoa wheels, Lenzi
> hubs/bearings, Howell EFI/EBL, Rostra Cruise, Custom interior
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
> does the fuel pump come on when the key is turned? It should come on for a
> second.
> The wire to the starter tells the ECU the engine is cranking, hard to
> believe it would kill the ecu
>
> BUT, if that wire is not connected to the starter I doubt the ECU would
> start the engine since it wouldn't know you are trying to start it.
> That said you should still get spark, since the spark isn't controlled by
> the ECU, just the timing of the spark. Kinda points to the module or the
> pickup coil
> maybe unplug the knock module.
>
> Definitely call jimk in the morning
>
> ________________________________
> From: Ken Shaffer
> Sent: Monday, September 6, 2021 10:01 PM
> To: gmclist
> Subject: [GMCnet] Re: Ken Sheffer stuck on I-90 in SD. Needs some advice
>
> Update…
> I’m off the interstate. I got a Tow to Chamberlan SD.
> I still have no spark.
> Have 12v to coil. I replaced coil and dist cap, then replaced
> distributor. Still no spark.
> I have Howell EFI with EBL
> Anybody have any other suggestions?
> Thanks,
>
> Ken
> --
> Ken Shaffer
> Marion Iowa
> 73 Canyon Lands, 455, Micro-level, Alum radiator, Alcoa wheels, Lenzi
> hubs/bearings, Howell EFI/EBL, Rostra Cruise, Custom interior
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
>
--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
Ken,
Why did you not contact me as I could help along with fer others that are
available .
I helped 3 people today.
> Replace the 7 pin module.
>
>
>> does the fuel pump come on when the key is turned? It should come on for
>> a second.
>> The wire to the starter tells the ECU the engine is cranking, hard to
>> believe it would kill the ecu
>>
>> BUT, if that wire is not connected to the starter I doubt the ECU would
>> start the engine since it wouldn't know you are trying to start it.
>> That said you should still get spark, since the spark isn't controlled by
>> the ECU, just the timing of the spark. Kinda points to the module or the
>> pickup coil
>> maybe unplug the knock module.
>>
>> Definitely call jimk in the morning
>>
>> ________________________________
>> From: Ken Shaffer
>> Sent: Monday, September 6, 2021 10:01 PM
>> To: gmclist
>> Subject: [GMCnet] Re: Ken Sheffer stuck on I-90 in SD. Needs some advice
>>
>> Update…
>> I’m off the interstate. I got a Tow to Chamberlan SD.
>> I still have no spark.
>> Have 12v to coil. I replaced coil and dist cap, then replaced
>> distributor. Still no spark.
>> I have Howell EFI with EBL
>> Anybody have any other suggestions?
>> Thanks,
>>
>> Ken
>> --
>> Ken Shaffer
>> Marion Iowa
>> 73 Canyon Lands, 455, Micro-level, Alum radiator, Alcoa wheels, Lenzi
>> hubs/bearings, Howell EFI/EBL, Rostra Cruise, Custom interior
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>>
>
>
> --
> Jim Kanomata ASE
> Applied/GMC, Newark,CA
> jimk
> http://www.gmcrvparts.com
> 1-800-752-7502
>
--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
Why did you not contact me as I could help along with fer others that are
available .
I helped 3 people today.
> Replace the 7 pin module.
>
>
>> does the fuel pump come on when the key is turned? It should come on for
>> a second.
>> The wire to the starter tells the ECU the engine is cranking, hard to
>> believe it would kill the ecu
>>
>> BUT, if that wire is not connected to the starter I doubt the ECU would
>> start the engine since it wouldn't know you are trying to start it.
>> That said you should still get spark, since the spark isn't controlled by
>> the ECU, just the timing of the spark. Kinda points to the module or the
>> pickup coil
>> maybe unplug the knock module.
>>
>> Definitely call jimk in the morning
>>
>> ________________________________
>> From: Ken Shaffer
>> Sent: Monday, September 6, 2021 10:01 PM
>> To: gmclist
>> Subject: [GMCnet] Re: Ken Sheffer stuck on I-90 in SD. Needs some advice
>>
>> Update…
>> I’m off the interstate. I got a Tow to Chamberlan SD.
>> I still have no spark.
>> Have 12v to coil. I replaced coil and dist cap, then replaced
>> distributor. Still no spark.
>> I have Howell EFI with EBL
>> Anybody have any other suggestions?
>> Thanks,
>>
>> Ken
>> --
>> Ken Shaffer
>> Marion Iowa
>> 73 Canyon Lands, 455, Micro-level, Alum radiator, Alcoa wheels, Lenzi
>> hubs/bearings, Howell EFI/EBL, Rostra Cruise, Custom interior
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>>
>
>
> --
> Jim Kanomata ASE
> Applied/GMC, Newark,CA
> jimk
> http://www.gmcrvparts.com
> 1-800-752-7502
>
--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502
do you have ability to run the "whats up display"??
Jim K probably has it right, and is a very good source of information and diagnostics on the EBL systems. There is a single wire just off the
start of the ECU harness, that you disconnect to set "base timing" it basically disables the ECU's control of the spark. you could try that too.
EBL should pop some codes.
but usually the diagonostic tree for no spark, is check and verify 12v at distributor. then it usually is the module, then the coil. and for the
price, a cap/rotor is easy to put in.
if still no spark, then it could be deeper into the distributor like a pickup coil.
Chamberlain is a tough spot... part stores there, but think pretty far from help.
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
Jim K probably has it right, and is a very good source of information and diagnostics on the EBL systems. There is a single wire just off the
start of the ECU harness, that you disconnect to set "base timing" it basically disables the ECU's control of the spark. you could try that too.
EBL should pop some codes.
but usually the diagonostic tree for no spark, is check and verify 12v at distributor. then it usually is the module, then the coil. and for the
price, a cap/rotor is easy to put in.
if still no spark, then it could be deeper into the distributor like a pickup coil.
Chamberlain is a tough spot... part stores there, but think pretty far from help.
--
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
Got things worked out. Ken's back on the road. He'll get back as to what went wrong. Not related to the EFI. As thought. Bob Dunahugh
________________________________
From: Bob Dunahugh
Sent: Monday, September 6, 2021 7:47 PM
To: gmclist
Subject: Ken Sheffer stuck on I-90 in SD. Needs some advice
Lost spark. Has Howell EFI with EBL Change distributor, coil, and cap. Has 12.8 volts to dist. Still no spark. Found a wire from the EBL to the starter. That grounded to the exhaust manifold. Did that wire grounding. Kill the EBL? Anyone around Chamberland? Would my 403 ECM get him home? His cell 319-929-3583. Bob Dunahugh
________________________________
From: Bob Dunahugh
Sent: Monday, September 6, 2021 7:47 PM
To: gmclist
Subject: Ken Sheffer stuck on I-90 in SD. Needs some advice
Lost spark. Has Howell EFI with EBL Change distributor, coil, and cap. Has 12.8 volts to dist. Still no spark. Found a wire from the EBL to the starter. That grounded to the exhaust manifold. Did that wire grounding. Kill the EBL? Anyone around Chamberland? Would my 403 ECM get him home? His cell 319-929-3583. Bob Dunahugh
