Nistune Forums

There is a hardware solution for properly peaking and holding current to use low impedance injections on a high impedance system. Check this out, the board could be used as it is, or you could setup your own circuit. http://www.jbperf.com/p&h_board/ The original nissan injector output/circuit sh...

I must be having a problem with my mail server, I didnt get that email with the new address features Matt. I think it may be on my end, I havent been getting any personal emails in what seems to be a week. My email is gabez@tds.net btw, I have phased out my gabe@hybridka.com because of excessive spam.

I have the CA18DET ECU with CA18DE rom uploaded... More than likely there are a few hardware differences between the DE/DET ecu. Even if 99% of what you can see of the ecu board seems to be the same, the code could be trying to configure and use some hardware that is not there or some hardware is n...

The cpu/adc sampling time shouldnt affect how quickly the narrowband o2 sensor responds, at least not directly. I assume you have a basic lean/rich meter piggybacked onto the 0-1v signal? The narrowband sensor produces/manipulates the voltage itself, and the CPU/ADC just samples the voltage at its o...

Hey everyone, I just picked up another ae86 corolla and I have a 4AG just about ready to go. On my main ae86 I have megasquirt controlling the factory toyota ignition system but I am not satisfied with the platform. The only reason I am running it in that is because it is better than the original 19...

Sorry about the delay, here is a short datalog representing what I described. One thing I should mention is that I had to modify the ka24e's consult table in order to place the IAT variable at the proper offset (according to generic consult documentation). I did this so that it would work with avail...

So then in other words what you are saying is that Nistune reported timing value does not directly correspond to actual ignition timing? Have you done any checking with a timing light as well? I am only remotely familiar with this system only having looked at the code itself. The timing value I see ...

You guys should try trace the RAM bytes 0027 and 003E when this occurs and note any correlation/record data.

I spent a little time looking through this, but cant do much else without running simulation, those are couple bits of data I would check first.

It is much easier code to read than the ka24e in some ways, it seems condensed in comparison, more to the point. ECCS 4cyl (6303 based)with native COP ignition, and good tools (Nistune). Why not? :) I wouldnt mind helping out with other popular systems as well, so long as they are not 16 bit :x

Hey thats cool, so Nistune Type 1 can trace RAM variables lower than 0040, or in other words, the internal registers of the 6303. Normal consult doesnt do that! What you have found there is that the fuel pump control is bit 1 of Port 2 (p21) of the 6303. This is pin 11 of the hd6303ycp (plcc 68 ), w...

Rom byte &HB92D/&H392D appears to be knock retard amount, is this a known location?

I keep posting in this thread because it seems appropriate, but perhaps it should be moved to bugs or 6303 section?

I have found only a very distant relation between the two within the code, they are far from being a couple cloned values. If I had to take a guess I would say it would be a rare occasion that these two variables are identical. The ignition table TP has its own distinct final modification routine, a...

Perhaps it also may have something to do with the fact that the ignition tables use a different TP load axis variable? This would indicate that the fuel/ignition table plots are manipulated differently.

Fuel TP = 1013
Ign TP = 10C4

Check this out, never seen anything quite like it within an eccs rom.

Found in 89-90 Maxima VG30E



Cool or no? And check out all that free space!

It also appears like there is some linkage between high/reg timing tables which I posted the assembly to in another section ...

My mistake, I couldnt find this post. I am curious and would like to help pin it down if I can.