gordie_ Posted May 1, 2017 Report Share Posted May 1, 2017 Hey guys - new to the forum. I have a Link G4+ plug in ECU in my S3. I'm having issues when the car gets up to temp or sitting at the lights, it goes into limp mode and cuts off my throttle body.These fault codes come upECU Fault code 84: Aux9/10 E-Throttle 1 IC Over-tempECU Fault code 73: Aux9/10 Supply error We have swapped over the throttle body 3 times but the same problem keep returning.Has anyone got any idea what it could be? Maybe a fault in the actual ECU?Any info would be great!ThanksG Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 1, 2017 Report Share Posted May 1, 2017 Hi Gordie,I will ask Simon to take a look at this one tomorrow to see if he has any thoughts. It is not one I have seen before. Quote Link to comment Share on other sites More sharing options...
gordie_ Posted May 1, 2017 Author Report Share Posted May 1, 2017 Thanks! Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 2, 2017 Report Share Posted May 2, 2017 Hi Gordie,I have a little more info for you. The error 84 is generally caused by the throttle motor pulling too much current. The error 73 is just a consequence of the E-throttle system being shut down by the safeties.So the usual causes of excess current and error 84:Aftermarket Throttle body?Max and Min DC clamp values too high/low.Target table set up wrong so that the throttle is always targeting a lower TP than it can achieve (due to throttle stop screw etc). Point 1 you can answer. Point 3 I can answer if you give me a log of it idling and a copy of your map. Point 2 might need some trial and error. Quote Link to comment Share on other sites More sharing options...
gordie_ Posted May 2, 2017 Author Report Share Posted May 2, 2017 Thanks for that Adam!1. Its a Audi S4 2.7TT throttle body, which is a direct replacement from the stock one. Same plug, they only difference is that its 70mm a appose to 60mm. The problem is intermediate, sometimes when I clear the codes it wont come back for a while, but sometimes I can even get the car out the driveway without going into limp mode. Quote Link to comment Share on other sites More sharing options...
Adamw Posted May 2, 2017 Report Share Posted May 2, 2017 1. Its a Audi S4 2.7TT throttle body, which is a direct replacement from the stock one. Same plug, they only difference is that its 70mm a appose to 60mm. Have you confirmed that it does actually draw the same current as the original? After changing, did you set up the target table so that it can actually reach target when its idle etc? Quote Link to comment Share on other sites More sharing options...
fourings Posted May 2, 2017 Report Share Posted May 2, 2017 Following as I will be running the same TB as Gordie. Quote Link to comment Share on other sites More sharing options...
gordie_ Posted June 1, 2017 Author Report Share Posted June 1, 2017 Have you confirmed that it does actually draw the same current as the original? After changing, did you set up the target table so that it can actually reach target when its idle etc?The problem went away for a month, and now its back after going for a random drive! I tried clearing the fault 10 times but it kept coming back instantly.The S4 throttle body draws the same current as the stock one.Could there be a issue in the ECU driver. Whats your email? I'll send you a copy of the map.Thanks!G Quote Link to comment Share on other sites More sharing options...
Brad Burnett Posted June 1, 2017 Report Share Posted June 1, 2017 It sounds to me like a set up issue with the ethrottle. could you post a copy of the calibration? Quote Link to comment Share on other sites More sharing options...
gordie_ Posted June 2, 2017 Author Report Share Posted June 2, 2017 Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 2, 2017 Report Share Posted June 2, 2017 I am assisting Gordie through our tech support system. From logs it appears to be either a motor or ecu hardware problem. I have given him some test to try. Quote Link to comment Share on other sites More sharing options...
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