Question about DTC's

TM_S13 · Post by **TM_S13** » Mon Feb 16, 2009 5:21 am

Hi there.

Well yesterday I had a bit of time so decided to do a half hour run with the laptop connected to the ECU, using NIStune offcourse, and noticed that on the consult gauges window, the one where you just have the speed and RPM gauges, the normal Consult Display, I don't get any ECU messages...
Is this right? I believe things like the fuel pump, the knock sensor, etc should appear on the ECU messages window with the 0 after them... correct?

Matt · Post by **Matt** » Tue Feb 17, 2009 10:47 pm

just checked them with latest build and DTCs still show for S13 CA18...

if you try and cause an error, does it show up? disconnect TPS?

TM_S13 · Post by **TM_S13** » Wed Feb 18, 2009 2:31 am

hum... I'll try that as soon as I can.
the window part where the DTC errors should appear with a "zero"... it's empty... but the rest of the things work ok... rpm, speed, timing, temperature, etc etc...

Mads B (dk) · Post by **Mads B (dk)** » Thu Mar 05, 2009 3:03 pm

i have triede disconnecting lambda, but it dos not generate an error

Matt · Post by **Matt** » Fri Mar 06, 2009 12:30 am

lambda sensor wont return a fault ... but TPS sensor should if you disconnect that

TM_S13 · Post by **TM_S13** » Sun May 10, 2009 11:15 pm

Matt, I still haven't tried to do the TP sensor "trick" to give an error, but another thing I noticed is, that in the "active test" window, it doesn't show the DTC's... on both windows I tried to "reset" so it would re-check for errors, just like on the consult software I use on a friends s14, and nothing...

when I installed the board on the ECU I kept the "turning screw" on it's place, and got the USB plug out of the ECU with a little modding... should this cause any mal-function of some sort? plus, the screw is on its original position, didn't rotate it at all...

apart from this nistune works great on my car, and that little problem I had with the injector duty not showing up is gone...

Matt · Post by **Matt** » Sun May 17, 2009 2:24 am

S13 CA18 doesnt have standard Nissan consult with active testing, so that feature will not work like it does with normal consult enabled ECUs like S14 SR20 for example

The DTC codes if not present will not show in the window at all. If your window is empty thats all good!

If you want to trigger a fault easily, disconnect the coolant temp sensor plug and you will see a DTC code for that appear in the window

I wouldnt worry about no codes ... thats usually a good sign

TM_S13 · Post by **TM_S13** » Sun May 17, 2009 7:39 am

Oh, I see ...

I thaught it would appear something like:

Throttle Position Sensor (0) / (1), being 0-no error, 1-error... if you know what I mean...

So, if they only appear when a fault is detected, all good then

not a single one for the moment heheheh
thanks