No Nvcs After Change From Auto To Manual

[Don Dada]

has anyone else had this prob? Pretty sure its somethin that the electrician left out.

[Don Dada]

I've read somewhere here the neutral switch pin 44 needs to be grounded....did that but still no go

[GTScotT]

Can you confirm what your referring to by NVCS so there aren't any mistakes in understanding?

[Don Dada]

Haha....yea it gets renamed alot here but i'll stick to Nissan Variable Cam System.....

You know the long hex thingy that sits on the left side of the head in line with oil cover and it goes click when it activates

[GTScotT]

LOL well that only has one control wire from the ECU, so why not bypass your problem without trying to trace it back

At the end of the day running a new wire to it will tell you if the problem is in the wiring or not, however I would be dubious to expect otherwise after you stated it came up after the manual conversion.

GL

[Don Dada]

Yea...wire has continuity back to ecu(113)

It has ign on the next pin at the solenoid jack

Solenoid works with direct pwr

[RRob]

Disconnect pin 44 or de-earth it. Green with orange from memory. Its the same colour in the engine gay to the gearbox. Maybe see what he has done with it.

[Don Dada]

Correct...green/orange

Did try it ungrounded as well....no go

The thing is its a conversion into a laurel as well so the wiring might not be 100% accurate, but AFAIK the neutral switch is the only thing that works along with the nvcs as the R33gtst has to be in a gear other than neutral for it to work.....on top of the fact that, it was an automatic now converted to manual and using a manual ecu

How does a neutral switch work on a manual box?

Its closed when the gear is in the neutral position right?....one side of the switch goes to the "neutral sw" pin 44 on the ecu an the next side of the switch goes where?

[paulr33]

for NVCS to turn on, that is switch the NVCS system on

rpm must be over 1500rpm i think, or around 1800rpm, it definetly wont turn on at 0rpm or idle

nuetral switch must be off

[STATUS]

it must see a myriad of constraints before it engages, i will try find it as i have it somewhere.

[paulr33]

#DEFINE NVCS 1

while (sensor(TPS)>0.40 && !switch(NTR) && int(RPM)<1500)

{

function(NVCS,1);

};

[Don Dada]

Paul.... according to Tomei 1050- 4500rpm

[STATUS]

#DEFINE NVCS 1

while (sensor(TPS)>0.40 && !switch(NTR) && int(RPM)<1500)

{

function(NVCS,1);

};

that whats what i was after

[Don Dada]

In english pls?

[SS8_Gohan]

basically is a function is just a pre-written bit of code that results in certain action each time you run it. The most commmon being something "Hello world"

function hWorld()

{

'output to screen command depending on language' "Hello World";

}

So when you run the function, hWorld(), it will output on the screen 'Hello World'.

so....i think it kinda means..

whilst the function sensor(TPS) is outputing a value greater than .40, AND the function switch(NTR) is NOT equal to something/not true? and function int(RPM) is less than <1500 rpm, run the function NVCS, passing int the parametre of 1

i think...

so it's a loop, it will keep running NVCS whilst all those other conditions are met, not sure if that helps at all (and i may have got some of that wrong as well ).

[paulr33]

sweet 1050 is the magical number

makes sense

the code says

if nuetral is off and rpm is more than 1800 and TPS is more than 0.40v

but we know what rpm is now 1050

[Simon-S14]

ive seen this issue before.

Neutral switch in the manual box was stuffed.

[Don Dada]

One side of the sw goes to pin 44 on the ecu and I believe the other side of the neutral sw goes to ground

So grounding pin 44 directly simulates the car is in neutral (sw on) and floating it simulates its in a gear (sw off)

I tried both ways and all other condition are good sooooo.........