Sancho Posted February 21, 2016 Report Share Posted February 21, 2016 Hi there, have got a Possumlink ECU (MY96) and I cannot seem to be able to connect to it via PCLink, Is there any special requirements to use the SerialLink? I haven't been able to find a decent serial cable, only used Prolific USB-Serial adaptor. I have a laptop with Serial so I need to find a proper serial cable since the SerialLink doesn't include one.Is there a way to bench test the ECU? or does it really need to be installed into a running car?I tried it on my WRX with no engine installed, but it may not turn on without one. (might need sensors ect) Trying to determine if it actually works. Quote Link to comment Share on other sites More sharing options...
Simon Posted February 21, 2016 Report Share Posted February 21, 2016 ECU will need to have suitable firmware to support PC tuning.The Main chip should have a sticker on it with a firmware code.Something like WRXROAD* Quote Link to comment Share on other sites More sharing options...
Sancho Posted February 22, 2016 Author Report Share Posted February 22, 2016 It has WRXROADR on the sticker, which I am told is laptop tunable, thanks. Quote Link to comment Share on other sites More sharing options...
Simon Posted February 22, 2016 Report Share Posted February 22, 2016 Yep it is all you will need is the Serial Link to allow connection.If using an adapter you will need to make sure the com port assigned is lower than com 10.PC Link will need to be version 2.5 Quote Link to comment Share on other sites More sharing options...
Sancho Posted February 22, 2016 Author Report Share Posted February 22, 2016 Yeah, and that's the problem I'm having, it won't connect. However as I said before I don't have a running vehicle to try it yet. And I'd like to know if it works before then. Quote Link to comment Share on other sites More sharing options...
Simon Posted February 22, 2016 Report Share Posted February 22, 2016 ECU will need power to allow it to connect.Make sure you plugin the Serial link in to the ECU first then the USB adapter to the PC.Once all connected the ECU can then be powered up. Quote Link to comment Share on other sites More sharing options...
Sancho Posted February 22, 2016 Author Report Share Posted February 22, 2016 What I was doing disconnect battery,plug in plinkplug in serial linkplug in USB adaptor to PC, make sure it has com assignmentopen up pclink 2.5 , set com portConnect battery and turn key to on.click connect to link in software, where the software sits there for about 15-20 sec then says its unable to communicate. Quote Link to comment Share on other sites More sharing options...
Simon Posted February 22, 2016 Report Share Posted February 22, 2016 Yep should work in that order.I have seen some USB adapters not work so could be worth trying another brand. Failing that it could be a serial link or ribbon cable issue or a hardware issue on the ECU. Quote Link to comment Share on other sites More sharing options...
Sancho Posted February 22, 2016 Author Report Share Posted February 22, 2016 I'll try use the serial port on my laptop, there's no special serial cable required to purchase?is there any way to prove that the ECU is powered up? Any particular pins that definitely need power? Or should I just check out the Subaru wiring diagram.can I send it to you guys for testing/repairs if needed? the Serialink I have owned for under a week, so I'm not sure if that could be the issue right now. Quote Link to comment Share on other sites More sharing options...
Simon Posted February 23, 2016 Report Share Posted February 23, 2016 Serial link should be ok if its new.No easy external signs for the ECU power only that it will talk to a serial link or hand control.And checking that there is power and ground on the correct pins.You should have Power to pin B43 pin 2 and or 13 and a ground on pin B43 11 and or 22 Quote Link to comment Share on other sites More sharing options...
Sancho Posted February 24, 2016 Author Report Share Posted February 24, 2016 Excellent, Thanks. I'll try this over the weekend and see how I go. I can't seem to find anyone selling a hand controller which would probably speed this process up. Quote Link to comment Share on other sites More sharing options...
Simon Posted February 25, 2016 Report Share Posted February 25, 2016 Yeah it would help having a hand controller but they don't come up all that often. Quote Link to comment Share on other sites More sharing options...
Sancho Posted March 26, 2016 Author Report Share Posted March 26, 2016 (edited) Have actually worked this out.Managed to access the program but it wouldn't start.had a broken transistor on the little board (physically pulled out of its solder) desoldered, resoldered and started first pop.also wouldn't mind knowing which voltage range the narrowband is asking for? have an innovate MTX-L and it's standard output for narrowband sim is 0-1.1v 14-15.1 AFR. Edited March 27, 2016 by Sancho Quote Link to comment Share on other sites More sharing options...
Simon Posted March 31, 2016 Report Share Posted March 31, 2016 Narrowband is always the same and will be expecting the 0-1.1 signalGood job on finding the issue. Quote Link to comment Share on other sites More sharing options...
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