[harleyfarkle]

What is this K-test as it relates to a Honda Civic with no spark?

[TxGreaseMonkey]

I developed the K-Test to determine if the ECM on Hondas are failing or not. It determines if the ECM is fulfilling its role as a "giant power transistor" or not. If the ECM is bad, the Check Engine Light (CEL) will stay on and the engine won't spark. If the CEL comes on and goes out normally, the ECM is likely fine. In this situation, replacing the ignitor and coil should solve the problem.

The K-Test: Remove the MAP Sensor connector and turn the ignition switch to ON (Position II). Using a multimeter, check for 5 volts going between the MAP Sensor connector's reference wire (+) and ground. As you look at the connector, this is the socket on the right. Really press the black test lead into a cleaned main ECM ground on the thermostat housing. If the voltage is low, it's probably indicating ECM failure. Most failed ECMs will record a fraction of a volt. To me, the K-Test is simple, elegant, and accurate.

Perform the tests in the link below:

https://www.askmehelpdesk.com/cars-t...tml#post229012