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No spark, possibly due to ecu?

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Dylancelone53
New User

Aug 10, 2014, 9:08 AM

Post #1 of 4 (1312 views)
No spark, possibly due to ecu? Sign In
Hey all, my first post so please bear with me Smile

I'm putting an ls400 engine into a 32 ford. I'm trying jump into the terminals in the ecu to get it started, I have power going in the starter,battery, ignition switch.

There's 12 volts going to the coil and everything is grounded.

The engine spins but there's no spark

Is something in the ECU not being light up causing no spark?

Thank you, any and all help is appreciated


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 10, 2014, 9:42 AM

Post #2 of 4 (1305 views)
Re: No spark, possibly due to ecu? Sign In
This is not the type of advice that this site provides.

You have to totally understand the circuits dealing with the PCM and it usually requires something short of an electrical engineer to overcome the issues that will come up. Do you even know if there is an immobilizer built into the PCM? I doubt you do.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Dylancelone53
New User

Aug 10, 2014, 5:32 PM

Post #3 of 4 (1291 views)
Re: No spark, possibly due to ecu? Sign In
In Reply To
This is not the type of advice that this site provides.

You have to totally understand the circuits dealing with the PCM and it usually requires something short of an electrical engineer to overcome the issues that will come up. Do you even know if there is an immobilizer built into the PCM? I doubt you do.
Okay thanks anyways,

We're jumping right into the computer so we Are past an imobilizer on the circuit


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Aug 10, 2014, 5:53 PM

Post #4 of 4 (1290 views)
Re: No spark, possibly due to ecu? Sign In
Quote
We're jumping right into the computer so we Are past an imobilizer on the circuit
Why, do you think the ECU plays no part in immobilizing the engine?



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.






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