Patrick

Thanks Simon

Hi link staff I have a G4 plugin for an r32 GTR, I want to bypass the factory fpcu all together and run max voltage full time by adding an external relay. I have a couple of questions. 1. Is Aux 6 (pin 18) a ground signal? 2. Now that i have Aux 1 and Aux 2 free, i want to use one to control a warning lamp and the other to control a solenoid. Once again are these two Outputs a ground signal? 3. Lastly Aux 1 is listed as both pin 106 & 113. Do i simply cut one of the wires and connect that to my aux device while leaving the other still connected to the old factory fpcu? Thanks in advance Pat

down like brown

sorry forgot to mention units is in kpa

I double checked and there's a fair bit of variance, MGP is any where between -8 to +8 when cold/hot. At operating temperature it sits close to 0 with engine off (+/-3).

I am just wondering what sort of variance should you be getting with the map sensor at atmospheric. I am running bosch STYLE 3 bar map sensor, i get any where from 99kpa - 108kpa, it drifts around a bit i think engine bay temperature has an effect on this. I understand the BAP has an effect on this but its usually just +1kpa in most cases. Also each time i check it's in my garage so sea level should have no effect on the variance. As I'm getting my car back on the dyno in a few weeks i thought it might be a good idea to get a genuine bosch sensor unless it is actually normal for the sensor to drift around this much. Cheers Pat

Hi scott can i please get your email address Cheers Pat

I have my ecu logging setup through a digital switch and it works as intended however my problem is that when i switch the car on a log file is automatically generated irrespective of my switch position. My setup is as follows. Ecu Logging: Logging Mode = On Logging Rate = 5hz Activation Mode = DI #6 DI 6 GP Input: Function = Gp Input Switch Type = Toggle Pullup Resistor = On On Level = Low Active Edge = Falling DI 6 is a toggle switch which is wired to 'expansion 1 signal GROUND' on the link g4 expansion loom (this is the ground for sensors and not an actual chassis ground). I've also tried temporarily using a virtual aux output to test and it works flawlessly, no log files are generated while switching the car on and off unless the virtual aux is active. Cheers Pat

a member is developing an android app with display of parameters, hi/lo warning and datalogging not sure when it will actually release though. Obviously not full featured as pc link but will be great on the move.

Colin which version of windows tablet is compatible with using pc link software?

My map limit is set to 280kpa and car boosts to 260kpa everything works perfectly fine. I have since tried setting the limiter down to 265 to keep a tighter tolerance and add more security. The car keeps cutting out well before it even approaches 260kpa, on a 5hz log the values show up as 228kpa > 242kpa > 253kpa > 236kpa > 181kpa > 51 kpa. I have also tried to set the check engine light to come on at 260kpa and it has not flashed even once even when the logs show small brief spikes over 260kpa. Cheers Pat

Thanks for your help simon

Can any of the link staff please shed a bit more light on this topic? 1. Will a continental sensor wired up with an external 2k2 give the same output result as a continental sensor using the internal pullup resistor? 2.Is 'Gm siemans ethanol sensor' used in the configuration when defining the digital input? There is no predefined continental sensor in pclink. Cheers Pat

Make sure you post up your results and any more info you find out on the continental sensor. Mine is going in soon as well, good luck!! Cheers Pat

hey levon I understand it will still work just curious now if it will give the same frequency output as a continental (with internal pullup) or even a gm sensor for that matter. Cheers Pat

Scott, i wish i have read your post a few days ago as i have just finished wiring up my continental sensor as per siemans diagram with the external 2k2 pullup. When using the continental sensor do you switch on the internal pull up? What is the configuration for this sensor, i noticed only the gm siemans is listed in pclink. Cheers Pat

Hey Levon I have an r32 gtr, di 5 & 6 are in the expansion inputs on the nissan g4 boards. Almost finished and ready to send off to the tuner gets a bit overwhelming when you try to rush everything, modifying the car yourself quickly stops being enjoyable and becoming a burden. But either way it has to be done, i've been putting it off for far too long. Nice to see you got your car running well, i like the knock block setup you've included. I may go down this path in future when funds permit. I know i will miss being able to check my knock readings on the power fc, but armed with a wideband / ait / flex sensor / intrusive corrections i should have all areas of detonations covered . Cheers

Thanks simon, this makes everything even more simple

Hi i'm wiring two digital inputs into my expansion loom dI5 and 6. DI5 will be a flex fuel sensor which will incorporate a 2k2 ohm pullup resistor to 5volts. For DI6 i want to make a switch to activate logging but unsure how to go about it, I came across this illustration in the pclink help file which is pretty self explanatory. What i dont understand is why it suggests a 14 volt pullup and not a 5 volt pullup like in the flex fuel example. In any case what do you suggest for my switch and the appropriate resistor to use. Also to activate datalogging on/off should i be using a momentary or toggle switch? Cheers Pat

Simon listed '2k2 pullup to 5 volts' for a siemens/gm flex fuel sensor. Does the same apply to the haltech/continental ethanol sensors?

thanks scott

hi i got a couple of questions i need help with. 1.Is Aux 7 (CE light/Cat light) a ground trigger output? What i basically want to do is retain the factory dash warning light but also add an external warning LED in conjunction with it. Will this work fine if i bridge that wire to the ground of my LED? http://i48.tinypic.com/hv2zv6.jpg 2.On my link board in the expansion 5 slot it is labeled AnVolt8 however there is no mention of AnVolt8 in the installation manual. Is it okay for me to hook up an analog input to this? http://i49.tinypic.com/5v12js.jpg Cheers Pat

Thanks scott

Hi I'm thinking of mounting my AIT sensor on my intercooler (outlet) tank, is this suitable or should i really try to mount it closer to the throttle body for an accurate reading.

Hi I plan on using a 113b mac solenoid valve to control boost, it is pretty much the same specs as the popular 35a 3 port mac valve every one is using. With the exception of it being a larger solenoid with 1/4inch npt fittings, this should make it more suitable for my twin turbo application. I need confirmation that the valve's response time is suitable for use as a boost controller. 35A-AAA-DDBA-1BA (small valve) = 6ms energise / 2ms deenergise. 113B-551BA (large valve) = 7ms energise / 2ms deenergise. Also do you know what pwm frequency i should set it to. Cheers Pat