Greenday694 Posted September 8, 2021 Report Share Posted September 8, 2021 Okay as I mentioned in my other thread I was having a problem with my G4 Plus. I contacted Link, they sent me the form and address to send out to be repaired. In the meantime I bought the g4x. Should have it tomorrow or the next day. Downloaded the g4x software, and apparently I cannot just open the G4 plus file in the g4x. Is there any easy way to copy over my tune from the one to the other? Besides having my two laptops open and copying each value one at a time? I am not a tuner. But over the years I had the G4 Plus, I have made a lot of little changes that had the car running pretty good. I would hate to have to redo that whole process over again. Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 9, 2021 Report Share Posted September 9, 2021 It has to be done manually, many of the strategies have changed so much they will need tuning from scratch. Basic fuel and ignition are mostly pretty similar so the bulk of it will be ok, but accel enrichment, closed loop lambda, knock control, idle control, vvt etc have all changed a lot. If you attach your two maps I can copy the settings over and set up decent starting points for most of the new stuff. Greenday694 1 Quote Link to comment Share on other sites More sharing options...
Greenday694 Posted September 9, 2021 Author Report Share Posted September 9, 2021 Thanks alot. My G4X will be here tomorrow. This is my G4+ file. Phoenix.pclr Thanks alot. My G4X will be here tomorrow. This is my G4+ file. Phoenix.pclx The 2nd one is the G4X Quote Link to comment Share on other sites More sharing options...
Greenday694 Posted September 9, 2021 Author Report Share Posted September 9, 2021 Hopefully I can finally get this car on the dyno next week. Quote Link to comment Share on other sites More sharing options...
Greenday694 Posted September 9, 2021 Author Report Share Posted September 9, 2021 One more quick question. Will the expansion loom from the G4 plus that I have wired into my car work with the g4x? Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 10, 2021 Report Share Posted September 10, 2021 Do you want the G4X set up similar to the G4+? I notice your G4X file is appears to be set up for flex fuel whereas the G4+ wasnt. Quote Link to comment Share on other sites More sharing options...
Greenday694 Posted September 10, 2021 Author Report Share Posted September 10, 2021 Yes I would like it to be as close to the G4+ as possible. I was going to set it up for flex fuel, but I think I will let the tuner take care of that. Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 10, 2021 Report Share Posted September 10, 2021 I've run into another question. In the G4+ map, there is an Aux output assigned to VVT, and there is an elaborate blend of 2 fuel tables and 2 ign tables based on VVT cam position. But then it is using a non-VVT trigger mode and no vvt is set up, so none of that would have ever worked? Is it meant to have vvt or has it since been deleted? Quote Link to comment Share on other sites More sharing options...
Greenday694 Posted September 10, 2021 Author Report Share Posted September 10, 2021 Sorry about that. Yes it does have VVT, single Vanos. When number one stopped firing, I was in the process of fine tuning the first fuel map. So I temporarily switched VVT off. Normally it is on m52vvi. Quote Link to comment Share on other sites More sharing options...
Greenday694 Posted September 10, 2021 Author Report Share Posted September 10, 2021 The ECU did arrive today. I did ask the retailer which map sensor this ECU would have. He replied 5 bar. Apparently that was wrong. Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 10, 2021 Report Share Posted September 10, 2021 So what engine do you actually have? Is it an M50TU and M52 has only two state on/off vanos, its position cant be controlled. M52TU has infinitely variable vanos on both intake and exhaust. Quote Link to comment Share on other sites More sharing options...
Greenday694 Posted September 10, 2021 Author Report Share Posted September 10, 2021 My engine is the M50 t u. The reseller I bought the G4 plus from, loaded it with the m-52 base map. I did ask him why the m-52 instead of the M50. He said because the M50 only switches between the two maps based on Vanos activation. And since it takes a few seconds for the intake cam to fully advance once activated, he preferred using the m-52 set up. Because as the intake cam is transitioning , the two maps will blend over. I know in the factory Bosch ECU this is true. I have tuned the 413, and the ms41 in the past. Not sure if the link e c u does the same thing? Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 10, 2021 Report Share Posted September 10, 2021 The cam position wouldnt even have worked using the multitooth missing trigger mode. M52 uses a special trigger mode to use both edges on trig 2 to determine cam position. I have never heard of anyone needing to do this and seems like a waste of time. You obviously arent going to be able to do flex fuel either if you do this. Quote Link to comment Share on other sites More sharing options...
Greenday694 Posted September 11, 2021 Author Report Share Posted September 11, 2021 That might explain why it was always so glitchy. The G4+ file I sent, was from the reseller. The changes I made to it was in the fuel tables and external inputs, fuel pressure, oil pressure, clutch pedal, front wheel speed sensor, and rev limit. Quote Link to comment Share on other sites More sharing options...
Adamw Posted September 11, 2021 Report Share Posted September 11, 2021 Map attached. I have turned off the dual fuel tables and dual ign tables & VVT. I think it is adding complication that is not necessary, I suggest try it without it and only add complication if needed. Remember the OEM needs to keep lambda at 1.0 at all times, you dont need too, and if the fuel drifts a bit rich or lean for a split second while the cam moves, no one is going to know. I have turned off all the stuff that is going to mess up tuning - Individual cylinder ign & fuel trims, knock control has the retard limit set to 0. I would probably turn of transient retard as well if it were me. Phoenix update 1.pclx Quote Link to comment Share on other sites More sharing options...
Greenday694 Posted September 24, 2021 Author Report Share Posted September 24, 2021 Thanks for transferring the files. It is up and running okay. Not as good as it did on the G4+. But good enough to get to the dyno this Thursday. Quote Link to comment Share on other sites More sharing options...
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