johnk Posted August 13, 2012 Report Share Posted August 13, 2012 I havea vehicle with 4 oxygen sensors, it is a V6 with a sensor before and another after each cat in each bank. The car runs fine when warm running on target AFR as per the tune.  But...when it's cold the idles jumps around all over the place, I suspect this is due to open loop? If so...what is the best way to implement closed loop sensing on a Storm unit?  Is a permenent wideband sensor a viable way to move forward?  TIA Quote Link to comment Share on other sites More sharing options...
Scott Posted August 13, 2012 Report Share Posted August 13, 2012 Good morning, It will depend somewhat on how you have things set up. Under Fuel Main what do you have the Open Loop AFR table set to? What form of Idle control are you running? Many vehicles run fine on warm up with no oxygen sensors at all, there is a large amount of cold start settings, and normally a very good idle can be set up while the engine is still warming up. Perhaps you could do a PC Log of the problem occurring and then we could have a look at the log to try and identify a problem. Cheers, Scott Quote Link to comment Share on other sites More sharing options...
johnk Posted August 13, 2012 Author Report Share Posted August 13, 2012 Thanks for the prompt reply. Â Attached is my config. Â Quote Link to comment Share on other sites More sharing options...
johnk Posted August 13, 2012 Author Report Share Posted August 13, 2012 The fuel main screen and open loop AFR setting is on this screen... Quote Link to comment Share on other sites More sharing options...
Scott Posted August 16, 2012 Report Share Posted August 16, 2012 Good afternoon, I have had a quick look at your base-map. As you have Open Loop AFR set to OFF and also Closed Loop Lambda set to OFF you are not currently getting any AFR correction at all. Looking at your Analog Inputs, none are configured as O2 sensors, so the ECU is not seeing any AFRs. I've also had a look in your Idle control section, although you have tables setup, you do not appear to have any Auxiliary Outputs connected to an idle stepper or solenoid. Is this the base-map you are running or do you have another one? If this is the one you are running I would advise setting up an idle solenoid on an Aux channel and getting that setup and running well. Once you have a nice stable idle you could then look at introducing AFR trims. Cheers, Scott Quote Link to comment Share on other sites More sharing options...
johnk Posted September 9, 2012 Author Report Share Posted September 9, 2012 Got a wide band O2 sensor wired in and the control and info is sensational now. At idle it hovers around 14.x and at hard throttle around 12-13. Â Quote Link to comment Share on other sites More sharing options...
Scott Posted September 11, 2012 Report Share Posted September 11, 2012 Great news! It is certainly worth having a wideband sensor connected. Quote Link to comment Share on other sites More sharing options...
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