Volcom86 Posted August 23, 2022 Report Share Posted August 23, 2022 Hey all, Got a weird situation - car will almost stall when the fans kick on - it has always done this and I am not quite sure why. Could this be tune related? I had attached my Log (happens at 54 seconds) and current map Checked earths on the car and everything seems normal Any help would be much appreciated Thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 23, 2022 Report Share Posted August 23, 2022 Ok, a few things I would change. Your AC fan is coming on at the same time as the main fan. Change your fan settings to this: Next, >Idle speed control>Fan step, change this to 2.0%. It goes a bit lean when the RPM drops and MAP increases, try increasing these cells to about 70 in fuel table 1: Idle ignition gets disabled when the MAP hits the lockout. The idle ign table might be a bit too aggressive also, can you try these changes below in green. We can add fan status to the idle ign if we need to but try this first: Quote Link to comment Share on other sites More sharing options...
Volcom86 Posted August 23, 2022 Author Report Share Posted August 23, 2022 Thank you @Adamw I will give it a go and let you know! thanks a bunch for the help!! Quote Link to comment Share on other sites More sharing options...
Volcom86 Posted August 23, 2022 Author Report Share Posted August 23, 2022 @Adamw I have tried your suggestions and I am still having the same issue Attached adjusted map to your recommendations and log Thank you Adjusted.pclr fans turn on.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted August 23, 2022 Report Share Posted August 23, 2022 Yeah, something odd going on here. The ECU response now looks quite good to me so there is not much more that can be done to increase torque quickly. Is it a stock fan? The battery voltage drops from 14.0V to 12.3V when the fan turns on which seems like a fair bit of load. Does the idle valve actually work? Does it idle at 1500RPM when cold? Quote Link to comment Share on other sites More sharing options...
Volcom86 Posted August 23, 2022 Author Report Share Posted August 23, 2022 27 minutes ago, Adamw said: Yeah, something odd going on here. The ECU response now looks quite good to me so there is not much more that can be done to increase torque quickly. Is it a stock fan? The battery voltage drops from 14.0V to 12.3V when the fan turns on which seems like a fair bit of load. Does the idle valve actually work? Does it idle at 1500RPM when cold? Yeb stock fans, and yes it starts up at around 1,500RPM when cold and the RPM slowly decreases as the ECT increases so all good there Quote Link to comment Share on other sites More sharing options...
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