Heavy Equipment Repair Questions? Ask an Expert Now.
Here is a fast Idle test for a 3126B Engine.
http://dl.dropbox.com/u/11922365/Fast%20Idle%20Enable%20Circuit.doc << click here
Also, the fast idle parameter must be programed in order to work. You may need to have someone connect ET to the engine and make sure it is programmed.
Please let me know if you have any more questions.