1984 Ram Crank No Start
Top of the pentagon connector is power for the ECU
When the distributor signals the ECU, the ECU connects its left pin (black and yellow wire in diagram above) to ground. That's all it does. Works same as points closing.
Give that battery a long slow charge.
it should be around 12.6 to 12.8 V fully charged with nothing turned on.
When you hit start, that Volts should drop when the starter engages but not below 9.5 V
You can check for spark while cranking the engine with a spark checker. Used to be about $5
No spark, then you can ask whether its ECU or lack of power etc
Yes spark, OK, then its something else.
Top of the pentagon connector is power for the ECU
When the distributor signals the ECU, the ECU connects its left pin (black and yellow wire in diagram above) to ground. That's all it does. Works same as points closing.
Give that battery a long slow charge.
it should be around 12.6 to 12.8 V fully charged with nothing turned on.
When you hit start, that Volts should drop when the starter engages but not below 9.5 V
You can check for spark while cranking the engine with a spark checker. Used to be about $5
No spark, then you can ask whether its ECU or lack of power etc
Yes spark, OK, then its something else.