wrx110487 Posted December 19, 2018 Report Share Posted December 19, 2018 In the G4+ VR4Link pinout, it skips over Pin 9 on the ECU which is the factory knock sensor. My question is whether my factory 1g DSM knock sensor will work correctly with my Link G4+ ECU or do I have to use an analog input and different knock sensor (most likely a Bosch donut sensor)? I would like to use as many of the analog inputs as possible and not having to use one for the knock sensor would be great if everything would still work correctly. Thanks, Chris Quote Link to comment Share on other sites More sharing options...
Adamw Posted December 19, 2018 Report Share Posted December 19, 2018 Unfortunately the knock pin is not connected on the VR4 ECU. You cannot connect it to any other input, it needs to be to the dedicated knock input. If you were willing and know someone that is reasonably capable with soldering I could give you some instructions on how to solder in a link wire to connect the knock pin to the knock input. Bigturbodsm 1 Quote Link to comment Share on other sites More sharing options...
wrx110487 Posted December 19, 2018 Author Report Share Posted December 19, 2018 Yes that would be great. That actually leads me to another question. I will overrun the “on board” map sensor making it useless to me currently. Under the same guidelines would I potentially be able to solder a jumper wire from the on board map sensor input to the AN Volt 3 pin and use that channel to run a 5 bar map sensor through there? Thanks again Quote Link to comment Share on other sites More sharing options...
Adamw Posted December 20, 2018 Report Share Posted December 20, 2018 So you're going to run more than 44Psi boost? AN Volt 3 would need quite a bit of messing around to disconnect from the existing MAP and make it usable for an external device. Did you know you have AN 4 (o2 sensor) and AN2 (MAF) available on the header? I will send you a drawing later how to connect the knock. Quote Link to comment Share on other sites More sharing options...
wrx110487 Posted December 20, 2018 Author Report Share Posted December 20, 2018 Yes I'll be hoping to push into the mid 50's boost this year. Ok that's good to know about AN Volt 3. Here's my inputs so far: AN 1 - TPS AN 2 - MAP AN 3 - On Board Map/Not Used AN 4 - Wideband AN 5 - Oil Pressure AN 6 - Fuel Pressure But I'll have to drop one if I need to use one of them for a knock sensor input. As I mentioned in our message, the most confusing part of all this is that I have two friends running this same exact VR4Link plugin ecu on their 1g DSM's and they've told me numerous times they are using a Bosch donut style sensor to the factory knock input (pin 9) and it all works flawlessly. From your first reply above it seems like that couldn't be possible. Quote Link to comment Share on other sites More sharing options...
Adamw Posted December 20, 2018 Report Share Posted December 20, 2018 1 hour ago, wrx110487 said: the most confusing part of all this is that I have two friends running this same exact VR4Link plugin ecu on their 1g DSM's and they've told me numerous times they are using a Bosch donut style sensor to the factory knock input (pin 9) and it all works flawlessly. From your first reply above it seems like that couldn't be possible. The knock pin is not connected, it will not work any other way except as per the instructions I have given you. Quote Link to comment Share on other sites More sharing options...
wrx110487 Posted December 20, 2018 Author Report Share Posted December 20, 2018 2 hours ago, Adamw said: The knock pin is not connected, it will not work any other way except as per the instructions I have given you. Ok thanks again. I'll have to get to the bottom of that and report back. Quote Link to comment Share on other sites More sharing options...
motomattx Posted March 28, 2019 Report Share Posted March 28, 2019 On 12/19/2018 at 1:27 AM, Adamw said: Unfortunately the knock pin is not connected on the VR4 ECU. You cannot connect it to any other input, it needs to be to the dedicated knock input. If you were willing and know someone that is reasonably capable with soldering I could give you some instructions on how to solder in a link wire to connect the knock pin to the knock input. Could you share this information with me as well? Quote Link to comment Share on other sites More sharing options...
Adamw Posted March 29, 2019 Report Share Posted March 29, 2019 57 minutes ago, motomattx said: Could you share this information with me as well? Sent you a PM Quote Link to comment Share on other sites More sharing options...
motomattx Posted March 29, 2019 Report Share Posted March 29, 2019 Thank you very much for the quick and easy to understand reply! Quote Link to comment Share on other sites More sharing options...
BoostedNerd Posted April 15, 2019 Report Share Posted April 15, 2019 On 12/18/2018 at 10:27 PM, Adamw said: Unfortunately the knock pin is not connected on the VR4 ECU. You cannot connect it to any other input, it needs to be to the dedicated knock input. If you were willing and know someone that is reasonably capable with soldering I could give you some instructions on how to solder in a link wire to connect the knock pin to the knock input. I just bought a VR4Link G4 ECU. Can I have the info on how to hook up the knock sensor jumper wire it sounds like? I will hopefully be messing with it this week. Quote Link to comment Share on other sites More sharing options...
theFiztec Posted June 7, 2019 Report Share Posted June 7, 2019 Hi @Adamw, Is this also apply to Evo 1-3 Plugin? Can your also share me the info. Tried wiring up knock thru ANVolt but did't work. Thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 7, 2019 Report Share Posted June 7, 2019 14 minutes ago, theFiztec said: Hi @Adamw, Is this also apply to Evo 1-3 Plugin? Can your also share me the info. Tried wiring up knock thru ANVolt but did't work. Thanks The factory knock sensor is already connected on the Evo1-3, you do not need to do anything except turn it on and tune it. Quote Link to comment Share on other sites More sharing options...
theFiztec Posted June 7, 2019 Report Share Posted June 7, 2019 1 minute ago, Adamw said: The factory knock sensor is already connected on the Evo1-3, you do not need to do anything except turn it on and tune it. Thanks adamw. i'll follow the evo 3 OEM pinout which knock input in on pin 58. since i'm using this ecu on daihatsu. Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 7, 2019 Report Share Posted June 7, 2019 correct Quote Link to comment Share on other sites More sharing options...
engiekev Posted August 22, 2019 Report Share Posted August 22, 2019 I'm also looking to do this for a DSM application with the VR4Link G4+ Plugin Ecu, Adam would you be able to send the instructions over? If this modification is done, the factory Mitsubishi knock sensor can be used? Could a Bosch sensor be used in its place? Quote Link to comment Share on other sites More sharing options...
reymartinez28 Posted April 21, 2020 Report Share Posted April 21, 2020 @Adamw I'm also looking to do this for a 1g DSM application with the VR4Link G4+ Plugin Ecu or should i use the XS expansion loom with the KNOCK SENSOR (KNS) Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 22, 2020 Report Share Posted April 22, 2020 On 4/21/2020 at 4:42 PM, reymartinez28 said: @Adamw I'm also looking to do this for a 1g DSM application with the VR4Link G4+ Plugin Ecu or should i use the XS expansion loom with the KNOCK SENSOR (KNS) Have sent you a PM. XS loom wont help but you will want a decent wideband knock sensor, I cant remember what the VR4's had for a sensor. Quote Link to comment Share on other sites More sharing options...
Chimei Posted April 12, 2021 Report Share Posted April 12, 2021 Hi Adam, Looking at getting a G4x for a vr4. Has the latest g4x ecu had the knock pin rectified? Would appreciate some info on how to fix if not. Thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 13, 2021 Report Share Posted April 13, 2021 The G4X VR4 ecu currently uses the same adapter board as the G4+ did so the knock pin is still not available. If you have a bit of time up your sleeve you could get your dealer to place a special order with link and they will add the wire link before shipping. Otherwise Im happy to give you info to be able to do it yourself. Quote Link to comment Share on other sites More sharing options...
MarcusV Posted April 13, 2021 Report Share Posted April 13, 2021 Hi, so double checking that this works in my Stealth/3000gt with the Evolink too, as the factory knock sensor is in the pin 58? I'll just turn it on? Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 13, 2021 Report Share Posted April 13, 2021 I have no idea whether a GTO knock sensor is compatable, but the pin 58 is the knock pin on the Evo1-3 ecu. This thread is about the VR4 ECU which doesnt have the knock pin connected to the factory header. Quote Link to comment Share on other sites More sharing options...
Alberta Joe Posted April 25, 2021 Report Share Posted April 25, 2021 On 4/12/2021 at 8:09 PM, Adamw said: The G4X VR4 ecu currently uses the same adapter board as the G4+ did so the knock pin is still not available. If you have a bit of time up your sleeve you could get your dealer to place a special order with link and they will add the wire link before shipping. Otherwise Im happy to give you info to be able to do it yourself. Adamw, would you mind sending me the procedure on how to connect the knock sensor on the VR4 ecu too? - Thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 26, 2021 Report Share Posted April 26, 2021 Sure. Quote Link to comment Share on other sites More sharing options...
kelvin1982 Posted May 23, 2021 Report Share Posted May 23, 2021 Hi Adamw, would you mind sending me how to turn in on for knock setting with stock knock sensor, now using the Evo1-3 g4+ plug in. Thanks. Quote Link to comment Share on other sites More sharing options...
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