Nitrous Problem

Ayeso · Post by **Ayeso** » Sat Aug 16, 2008 1:19 am

Hi all, I'm thinking its something minor I'm doing possibly wrong but I cannot get the N1ON to to On

I have everything hooked up correctly because if I turn off the nitrous and let it act on just the PCS it clicks the solenoid on and off as it should.

I am running 1.3.4 Smanager, I see there is an update so I will try that.
I have a P28 Ecu
I currently have it hooked to the AC out line, but I also tried the PCS.

If I set basically every condition to 0 the N1ON never turns on

N1Arm is on
N1ON is always off

I set all the conditions so it should come on with a tiny blip of throttle and N1ON is always off.

Any ideas?

Here is what is set.. from how I read the explanation it should basically be on as soon as I tap it more then 10% but it never goes on.

I've set the conditions every which way i can think of and yet I never can get it to go N1ON to ON always sits on off.

I know the relay and everything is hooked up because if I turn nitrous control off the PCS clicks the relay on and off.. everything else works on my hondata :(

Post by **Hondata** » Mon Aug 18, 2008 7:27 am

The minimum engine load is greater than the maximum. Change the minimum engine load to a positive number eg 28

mron0903 · Post by **mron0903** » Fri Oct 17, 2008 10:48 am

I'm having the same problem. Is there a way to set all the minimums so i can activate the solenoid with out turning the car on?

Funbar · Post by **Funbar** » Mon Apr 05, 2010 8:50 pm

I'm having the same problem, and I've been searching for an answer for a couple hours here not being able to find anything.

Everything is wired correctly. My father is an electrician and I had him look over everything and it checks out exactly how the diagram is drawn out.

Now, With my calibration the way it is, using the Arming input as B5 and output as A20, I can Invert A20's output and it closes the circuit engaging the Relay and Nitrous solenoid flawlessly.

Also, When the arming switch is turned on and off, it works and shows in the sensors tab as 'Working'. (N1Arm = on)
But N1O2 never turns 'on'.

Please look at my calibration, I'm trying to test the NO2 System before hooking up the bottle and whatnot.

Post by **Hondata** » Tue Apr 06, 2010 7:32 am

Assuming that you are NA, is your engine reaching 98 kPa to activate nitrous? Depending on your elevation, it may not. Try reducing the minimum MAP to 80 kPa or so.

Funbar · Post by **Funbar** » Tue Apr 06, 2010 5:30 pm

It reaches 90kPa. But that's not my problem?

Is there any way of testing the activation without actually driving the vehicle? Or, having the motor running?

Funbar · Post by **Funbar** » Tue Apr 06, 2010 9:01 pm

Okay, Say I didn't have Q31 in my ECU, Would inverting the output still trigger the signal off A20? Or Not? If it does still fire off A20, then I'll check to see if I have Q31.

I would assume that I do have it installed, since I purchased the ECU from Hondata?

I need some help on this topic.. I need someone to look at my calibration and let me know if I may be missing something? Or just offer some suggestions or somethin?

Post by **Hondata** » Wed Apr 07, 2010 8:56 am

You need to provide more information. Is the engine NA or forced induction? What is the atmospheric pressure where you live? If you're NA and anything above sea level I can see the lower MAP limit will stop the nitrous from coming on.

If the Nitrous output never comes on, then look at the settings as per above. If the output shows on, but nothing else happens, look at the ECU. A datalog may help here.

Usually when testing I don't open the valve on the bottle, zero out the extra fuel changes and then look for the solenoid clicking on at the right moment.

Funbar · Post by **Funbar** » Wed Apr 07, 2010 3:59 pm

Hondata wrote:You need to provide more information. Is the engine NA or forced induction? What is the atmospheric pressure where you live? If you're NA and anything above sea level I can see the lower MAP limit will stop the nitrous from coming on.

If the Nitrous output never comes on, then look at the settings as per above. If the output shows on, but nothing else happens, look at the ECU. A datalog may help here.

Usually when testing I don't open the valve on the bottle, zero out the extra fuel changes and then look for the solenoid clicking on at the right moment.

Motor is N/A, And I'm at about 2300ft I've adjusted the conditions so that it would engage at about -4 in/Hg. My WOT reads -2.1 in/Hg So, it has plenty of room to engage. I do have the bottle off. And I have the fueling at 400 units so I would KNOW if it engaged.

So, Is it correct to assume that by Inverting the output, and the solenoid clicks on, that the wiring and ECU are working as they should? Or could that not be a good assumption?

Should I try a different output?

I'll go get a Datalog for you right now.

Funbar · Post by **Funbar** » Wed Apr 07, 2010 4:32 pm

Here's the log..

Post by **Spunkster** » Wed Apr 07, 2010 4:54 pm

The parameters you have set for engine load are not being met. Try lowering the minimum load.

Funbar · Post by **Funbar** » Wed Apr 07, 2010 5:38 pm

Spunkster wrote:The parameters you have set for engine load are not being met. Try lowering the minimum load.

I just tried that, I went with kPa from Absolute pressure.. and looked at the tables settings.. and put in the load parameters that corresponded with the loads I would be getting at WOT.

Everything works now.

You guys should add that in on the next update you do. Add in that the Parameters are for Absolute (Increases from full vacuum. That would save alot of grief for people that don't normally use absolute measurements. :P

Anyway, Thanks for the help!