pgmfi.org

Even with 1uF caps I still have a problem generating the x24 signal at idle and above: everything works OK at 300rpm but at 1200 and higher my VR TTL output skips half or 75% of the signals I am trying to produce. I have some oscilloscope pics with different inline caps/resistors @ http://rusefi.com/forum/viewtopic.php?f=4&t=258&start=170#p10553

Hmmm, all I know is even my moates tester the injector pulses go out of sync around 2000-2300 and again at 6500.
I get a code 9 easily from cycling through RPM at 2000-2300 everytime, on any ecu (JDM, USDM), on multiple testers on multiple different power adapters.

It's the Sim



I have yet another P08 that passes on the moates sim perfectly but fails on the car (solid cel but no code just solid)

Found out why two P08's I have pass on the sim but fail in my car.....
I have a 4 wire heated 02 sensor. Voltage on pin A6 heater wire is causing Solid CEL on these two P08 I have.
Unplug 02 sensor, CEL gone.

I have a further 6 P08 of same revision that pass in my car fine.
Also those two that have the issue WERE working fine in other cars with 4 02 sensors. But then failed one day

Now to find the failed part.....
HOWEVER - Just shows that potentially voltage on A6 on the Sim would be a more complete test for ecu's...

Anyone have any luck simulating the IACV in a way that keeps the ecu happy? I'm revisiting my sim, trying to finally finish the Eagle schematic and just realized I never got the IACV to work.

I'm having an odd problem with my sim that I just can't track down.

For reference, I started off with A24 (PG2) and A26 (Logic Gorund) connected to the ground plane.

Originally I had the ICM signal running through an led and 3.3k resistor and then to ground to keep it right around 4mA. Everything else on the sim worked correctly and it ran but it would throw a code 15 (ICM signal) and shut down after a few seconds.

Through some experimentation, I ended up removing A24 from the ground plane. I also removed disconnected ground side of the ISM circuit and ran it, in its own isolated loop, directly to A23 (PG1). If I do the same but use A24 to the ICM, code 15 again.

The sim will run all day in this state but it is getting ground through the VTS circuit and that led stays on all the time, only changing brightness with switching on and off... sim shuts off if I pull that ground too. The rest of the leds are also dimmer in this configuration. More importantly, I have to flip the led around on the ICM circuit in this state, indicating that it is actually lower than ground and is back feeding... not sure what is going on there, but once again the odd thing is that it will run all day without a hiccup in this config.

I've checked and rechecked my circuits and pins and this is the only bogey that's keeping me from getting a few boards printed. Would anyone care to shed some light on how they have their ICM set up?

Looking at the Moates sim, it appears to be a 1k or 10k resistor (hard to tell if that third ring is red or orange) to either a ground plane or directly to logic ground.. but none of those configurations keep mine happy. I'm stumped.

EDIT: There's definitely about 3.7V from A23/24 to A26. So I've got some digging to do.

Boards are here! Hopefully I have some time to get one put together before I fly out on Friday.

Awesome!

Youtube it when complete adam...

thank for your post

Anyone have DIY simulator schematics/code to use now that moates is gone and there are no more of their sims being made?

Well that sucks my with not being able to get Crome reactivated easily and it stuck on a dead laptop and not being able to migrate to something newer this is problematic for my hatch if I ever start working on it again.

There do appear to be 4 in stock here:


https://www.hamotorsports.com/collectio ... /enginesim

2 in stock now, then thats the last of them

Who wants to collab on a project and can assist with the code? I got part of the code covered and the board already done?? PM me