hello guys,

is possible disable the idle test? on my evo 9 cause the idle test an error in dtc! the idle stepper is changed 3x! i have the cosworth 272 cams, and the idle is very row!!

in the ecu periphery2 bit 8 is write idle test?! can i set the bit to 0 without disable other important functions of the ecu?


thanks andy

 

Are you getting a p0505 dtc?

If so, i suggest you use the SAS mode in evoscan to properly set your BISS (the idle screw on your throttle body).

 

yes is a p0505. how much steps must have? i activate the sas mode then must log with evoscan the isc steps?!

 

Activate the SAS mode in the actuators screen in evoscan, the IAC will go to it's "parked" position, where it should be at idle. Your idle will go up or down a few 100's. The engine might turn off if the biss is closed too much.

Use the BISS screw on the throttle body to set the idle to about 800-900rpm (whatever you have your idle tables set at).

When you are done, deactivate the SAS mode. The car will want to idle funny in the beginning. You can either give it 5 or so minutes to readjust, or remove the battery for a few seconds and start the car again.

Unless I am mistaken, you should log about 20 steps in the ISC at idle, with a fully warmed up car.