Im trying to get this car finished up. I did a 749 swap in an 89 vette(formerly 165). The problem is that datalogging is spurratic, if at all. Ill try to connect like 20 times. If it decides to connect it will just stop for no apparent reason. Im using an autoprom and not emulating at the same time. I have tried various switch combos with no luck. For software I have tried both tunerpro and Datamaster. Any help would be appreciated

 

If you're looking at the AutoProm from the back where all of the connectors go in and the zif is pointing skyward; The verticle switch should be in the middle, this is "normal" mode. The horizontal switch can be to the left (toward the connectors) if you use TunerPro and have the settings set for autoprom and not max232. If you put this switch to the right you remove the autoprom and are running a max232 virtual serial port connection will work with datamaster. If you switch the horizontal switch you have to reconnect the autoprom for the new "mode" to take effect.

 

Thanks for the response. I will try these specific settings tomorrow. i have used the stuff on an 8d car in the past with no problems

 

Got decent logging 1 way and 1 way only. With tunerpro with max settings. will not conntect when used as autoprom(with correct serrings on the unit) and wouldnt work woth datamaster either. it is still buggy but better than before. Sometimes it will connect but show no data and I have to reconnect a time or 2. This is the 1st time though that it has connected every time though, data or not. I also have to try different com ports after restart for some reason.

I also noticed something odd with timing. since reference is set to 6 deg should timing in relation to ref pulse be 6 degrees LESS than actual timing?

 

The odd timing thing is because the ADS file is incorrect. Edit the ADS file and swap the names of the timing byte locations. That is, swap byte 27 with 25.
You might also need the injector BPW fix. Do a search for the past couple of days. A few people were talking about it and it lists the fix for the ADS file. TP might already have this updated on the website. I haven't checked.

 

it really isnt a big deal, does it just mean that my timing relitive to reference is my actual timing?

 

After fighting with a random high idle. The ecu finally starting throwing a flag. IAC. I had originally had it pinned what is suggested for a 749 swap and went over a month with no iac flag. It would occationally die but I attributed it to the lack of real tune. After getting the flag, I started checking wires, everything good here...Hmm maybe if I try repinning the IAC to 730 spec. Did this. Was hesitant to start initially, after everything ran a while, the idle improved greatly. No code as of yet.

Datalogging is still flakey but once it connects, it stays that way, so Im happy. I just have to change the com port every time I do something like burn a chip or unhook the autoprom at all.

Is the ve adder a general scale that is added to everything in the table or are there conditions which it changes or a different table?

Has anyone tried using 8d ve and spark numbers in the $58 code with success?