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View Full Version : How do you no if your Ecu is good or bad!


Dragon4159
Oct 1, 2010, 01:24 PM
No gas to carb?

TxGreaseMonkey
Oct 1, 2010, 01:25 PM
Perform the K-Test on the ECM:

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.

TxGreaseMonkey
Oct 1, 2010, 01:37 PM
You don't know what you're talking about!! They're the same, bud.

kitch428
Oct 1, 2010, 04:10 PM
How about we just throw this link at 'em.
https://www.askmehelpdesk.com/cars-trucks/when-asking-about-your-vehicle-303903.html
An electronic control unit for a carbureted vehicle? I'd REALLY like to see this poster read the link and get back to us.

TxGreaseMonkey
Oct 1, 2010, 04:36 PM
People are their own worst enemies. Try and help someone and look what happens. Go figure. He previously tagged on to someone elses' posting, kitch428, that had a 1990 Honda Civic Hatchback.

kitch428
Oct 1, 2010, 07:45 PM
The poster is embarrassed and not responding back because... he forgot to put gas in it! 33275