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Marc Haibeck · 07-24-2019

Considering that the problem started after installing the ignition module connector, I think that it's most likely that there is a problem with the connector. Sometimes the female pin in the connector gets crushed to the side or pushed back. I would remove the D connector on the ECM and measure the resistance of the IC (pin D1) and Bypass lines (pin D12) on the ignition module. They should not be over 10k ohms to ground. If so, there is an open circuit.

A silent no start with a hot engine is likely caused by friction in the starter solenoid or low current to the solenoid.

07-24-2019	#28
Marc Haibeck Join Date: May 2007 Location: Addison IL Posts: 250	Re: Code 42 EST Considering that the problem started after installing the ignition module connector, I think that it's most likely that there is a problem with the connector. Sometimes the female pin in the connector gets crushed to the side or pushed back. I would remove the D connector on the ECM and measure the resistance of the IC (pin D1) and Bypass lines (pin D12) on the ignition module. They should not be over 10k ohms to ground. If so, there is an open circuit. A silent no start with a hot engine is likely caused by friction in the starter solenoid or low current to the solenoid.