AndrewD5418 Posted June 8 Report Share Posted June 8 Just put my g4x in and everything is working great and fired right up. Except for tach. I noticed there was no jumper so I grabbed one I had laying around and installed it. From another post on here, I read someone had to swap in pin 50 into 37 and set up the tach thru PCLink and Aux3? I checked my harness and it has nothing pinned in 37. Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 8 Report Share Posted June 8 The tacho jumper is needed on the 1.8's with 4 pin coils, I dont know for the '96/97 that had the 3 pin coils (looks like same coil but 1 pin missing). I havent heard of anyone needing to do anything with pin 50 or 37 though. What coils does your car have? Quote Link to comment Share on other sites More sharing options...
AndrewD5418 Posted June 8 Author Report Share Posted June 8 3 hours ago, Adamw said: The tacho jumper is needed on the 1.8's with 4 pin coils, I dont know for the '96/97 that had the 3 pin coils (looks like same coil but 1 pin missing). I havent heard of anyone needing to do anything with pin 50 or 37 though. What coils does your car have? I think the jumper is needed regardless for all 1.8? So I put it in. It's a 94, so its originally got a 4 pin, but I put 3 pin on for an r8 coil pack conversion. It was installed before the linkecu, while running a speedyefi. Quote Link to comment Share on other sites More sharing options...
AndrewD5418 Posted June 9 Author Report Share Posted June 9 Okay, after some digging it's because of the R8 coil conversion. GoFlowForce removes the wires that send the signal to the tach. The reason it worked with the speeduino, is that speeduino has 2I as a tach output. Link has 2I as an input. Quote Link to comment Share on other sites More sharing options...
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