custom tunning

zok race carbs · Post by **zok race carbs** » Sat Jun 25, 2011 2:56 pm

to "vl 400"
hey mate the changes you metioned to the road speed param,what is the"PPK value?and why am i changing from 6250 to 1250,are the values the same ?i want to understand why the change please ,cheers

zok

Post by **antus** » Sat Jun 25, 2011 3:01 pm

If you go to http://memcals.com/rcc_info_memcals.html or use the binid tool and look up BLCF you'll see its for a VR 5.0 Manual. You would be using it in a vn/vp 5.0 auto. The auto is non electric so it'll handle itself ok, but the speed senders are different so you are calibrating the ecu for the right sensor. Telling it how many pulses to interpret as 1km for its speed calculations.

zok race carbs · Post by **zok race carbs** » Sat Jun 25, 2011 3:17 pm

thanks ant,
i thought differently but obviously wrong,so the PPK i see now is pulses per kilometer and the different sensors are calibrated differently ,thanks heaps mate appreciate it ,cheers

zok

vn5000 · Post by **vn5000** » Sat Jun 25, 2011 3:27 pm

If you change diff ratios you can change this parameter as well so that the ecu can calculate correctly what speed the vehicle is travelling at.
On a std vn the speed sensor outputs 1250 pulses to the ecm per 1 kilometre.
If this parametre is wrong ,when you are datalogging you will see an incorrect vehicle speed on the tunerpro dash.

Post by **delcowizzid** » Sat Jun 25, 2011 3:28 pm

the ppk is changed due to vn speedo pulses to the ecu go via the dashboard speedo on vn and are outputted at a different amount after the speedo .on vr the pulses go direct to the ecu.

vn5000 · Post by **vn5000** » Sat Jun 25, 2011 3:45 pm

yeah ,i forgot about that ,as delcowizzard said, on a vn the speed sensor output goes to the speedo ,and the speedo sends a modified signal to the ecm -1250 ppk

vn5000 · Post by **vn5000** » Sat Jun 25, 2011 3:50 pm

As you can see zok ,If someone posts something on this site that is incorrect,it is quickly corrected.

Post by **delcowizzid** » Sat Jun 25, 2011 4:11 pm

helpfull bunch of retards we are LOL

zok race carbs · Post by **zok race carbs** » Sat Jun 25, 2011 5:33 pm

"vn5000" and "delcowizzid",
and it's all done without any tall poppy syndrome ,it's refreshing to see , so much more pleasant this way ,
i read something on one of the other threads about knock sensors and i have to ask ,do the vn's have a knock sensor on the 5L's?

zok

darcy · Post by **darcy** » Sat Jun 25, 2011 6:40 pm

zok race carbs wrote:do the vn's have a knock sensor on the 5L's?

Only in HSVs.

custom tunning

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