jubs Posted April 8, 2020 Report Share Posted April 8, 2020 Hi wonder if anyone can help with a idle valve question. Engine is a N45 b20 with M3 ITBs. ECU is a Fury. I have an idle valve (solenoid 2 pin - connected to Aux 1 and set as idle control) from a BMW M40 318i. When operating in closed loop idle control with the ECU indicating it is reducing the rev`s to hit the idle target the engine speed increase - not decreases. its like the idle value is operating in the wrong direction - how do I change the direction ? cant see anything in the settings. Any help would be great. Thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 8, 2020 Report Share Posted April 8, 2020 If its one of those barrel shaped bosch idle valves then you need to set the minimum clamp to 15%. 100% is fully open, 15% is fully closed, below 15% they start to open again. If that doesnt help then post your tune Ill take a quick look. Quote Link to comment Share on other sites More sharing options...
jubs Posted April 8, 2020 Author Report Share Posted April 8, 2020 Ok got it - yes it is one of those Bosch types. Have used a GP PWM signal to check the duty factor when its closed 35% DF valve is closed - about 70% DF fully open Next problem is that as soon as I open the throttle slowly from idle it stalls - will start new topic... Thanks Quote Link to comment Share on other sites More sharing options...
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