DIY PROMDo It Yourself PROM chip burning help. No PROM begging. No PROMs for sale. No commercial exchange. Not a referral service.
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I just began emulating using my AutoProm again today and it was working perfectly until I disconnect the USB cable or shut down TP.
I got an immediate SES and was in limp mode.
I don't remember that happening previously when I used it. As I recall it was in my car unhooked and emulating for about a month. I just plugged into it when I wanted to get data and make changes.
Does it need power from the USB to keep emulating or maybe the onboard battery has given up (if there is one)?
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i've used emulation, but i never tried to use it without my laptop plugged into the AutoProm. when im tuning, i move keep alive power to the ECM over to a switched power source so the memory gets cleared every time i turn the car off.
i don't think there is a battery in the AutoProm, if there is it would have to be inside the big chip.
i may be wrong but it seems like i remember reading that the AutoProm can hold memory only as long as its hooked up to the ECM and the ECM has keep alive power to it.
if i get a chance, i'll see what mine does tomorrow.
I do have keep alive power on the ECM, just seemed odd that it was dropping out of emulation as soon as the cord was unplugged.
I tried several variations to prove it by turning off emu before exiting TP etc.
No matter what I did it would just go into limp (10:1 AFR due to 30# and 50 psi fuel) Would still run but was not good on the plugs.
If it is a battery on the main memory chip, I'll just do the upgrade to the bigger chip so I can EMU on 16 bins.
i played around emulating today and mine is working like yours'. no matter how i stop emulating, as soon as i pull the USB cable it goes into limp home.
tuning the laptop off puts the ECM into limp home too.
thats the difference between the AutoProm and the Ostrich with emulation.
thinking about it, i remember right after i had started tuning i was emulating and the screen saver nailed me.
i was driving along data logging and the motor started running bad. i just knew the in-line fuel pump had went out, so i changed it.
when i got back in the car i sat a screw driver on the key board which brought the laptop out of hibernation and of course then motor fired right off.
a few minutes later it did the same thing, i was under the hood trying to figure out what was wrong for a half an hour or so. i gave up trying to tune and i put my chip back in. of course the motor fired right off and ran fine.
i spent a few hours on here searching trying to find out what was happening and found a post talking about screen saver while emulating.
Worked on it again tonight with same results.
I could swear it didn't do that before. It is more than a couple years old and I'm using the external channel adapter too.
I'll have to wait for Craig to come back and find out if there is a battery somewhere (or I'll probably just take it apart and see)
Interesting to see the "new" units do "bumpless" emulating. That is a hardware design problem. A new vocabulary term was created instead of saying that the emulator didn't always emulate properly. Gotta love the words for saying the old stuff didn't work correctly all the time. Maybe check the Honda forums for some help.
Make sure you have the latest firmware update on your APU1. According to TunerPro the firmware version on my unit is 2.17.A. Craig no longer has the firmware updater posted on the website. I have the update program and the flash file if you need it.
I'll have to recheck the version of firmware installed. I thought it did have the 17.A version but will recheck tonight.
The firmware file is actually posted in the Documentation setion on a new web page dedicated to the AP. It is just one file posted currently.
I have the loader from previous download.
While doing some testing for Magnus I'm going back and forth between the NVSRAM module and the AP, That's how this issue came up.
Might be firmware or the switching device in the unit just went out and is defaulted to USB power, IDK.
It's not a software issue. The power source auto selection happens automatically. There's either a problem in that circuit (on the APU1), or with your ECM as a power source through the PROM header (low battery? wiring issue? bad ECM?).
Interesting to see the "new" units do "bumpless" emulating. That is a hardware design problem. A new vocabulary term was created instead of saying that the emulator didn't always emulate properly. Gotta love the words for saying the old stuff didn't work correctly all the time. Maybe check the Honda forums for some help.
As with anything I sell, the AutoProm comes with a lifetime unconditional satisfaction guarantee just like it has for the last 6 years (that's right, six years now). I'll be glad to take it in hand and get it taken care of or replaced if needed, no worries.
It should not be doing what you describe. You should be able to switch between power sources on the fly without disturbing operation. That includes plugging the USB in and out while ECU is connected and running. The only time you should see disturbance is perhaps during binary readback from emulator to PC (which is usually not even necessary) or if you forgot to check the 'disable checksum by uploading AA at 08' box in TunerPro preferences (assuming 730 ECU for you).
Does it run OK if you just run it off emulation without the laptop connected from the get-go? It flakes out with SES even by just closing the software, keeping USB connected? That is a bit strange if so. Otherwise I'd say have a look at the jumpers inside and make sure you're in 28 pin mode or look at the cable and make sure you don't have a broken pin.
Anyways, I've PM'd my cell # over to you, so feel free to call me anytime. I'm putting up shelves in the shop today, so would be happy to take a break anytime. It feels like 100 degrees today.
And I still don't have the tune the way i want it!
I don't think it will ever end (unless I stop changing parts )
I'll check all the cables etc again and see if anything is amiss there.
You're still closed till the 5th so get what you need done before worrying about it. But take a beer break now and then anyway.
To answer your questions, it's ok with USB connected, recoveres as soon as it is plugged back in.
Does not verify emulator unless key is on. That may also be a clue.
i couldn't remember if i had tried just shutting down TunerPro while emulating the other day or not, so i checked it again today. i can shut down TunerPro without going into limp home. as long as the USB is plugged in and the laptop is on it keeps emulating.
both of my ECMs are pretty old, i'll have to try and get remaned ECM in the next few days and see what happens.
i didn't think about seeing if it will verify with the key off.
)
