Ostrich is hit or miss

PhilStubbs · Post by **PhilStubbs** » Mon Sep 20, 2010 5:23 am

I have been trying to tune my truck without much luck. I have gotten the ostrich to work twice for about 2-3min at a time. It will connect and I can tune for 2-3min and then out of nowhere I get the flashing ses light. Once it does that, I can't get it to reconnect for the rest of the day. The next day I try again and it does the same thing. I never have any ses flashing problems with chips. I am using the moates socket booster with the ostrich and the ECM is a 7747

Six_Shooter · Post by **Six_Shooter** » Mon Sep 20, 2010 5:36 pm

How strong is the USB port on your laptop?

In the case of the '7747 and my experiance, is that the Ostrich has to be plugged into a strong USB port. The Socket booster seems to not allow power from the ECM to power up the Ostrich.

PhilStubbs · Post by **PhilStubbs** » Tue Sep 21, 2010 3:55 am

It's a 15 year old laptop. I am amazed everytime it loads windows xp, much less having good USB ports. Lol. I tune hondas with it all the time, but those ecu's are incredibly advanced compared to the commodore 64 we all call the 7747. Lol

I guess I will try using my wifes new laptop. Only problem there is that I can't connect my wideband to it and I don't own a serial-USB converter.

PhilStubbs · Post by **PhilStubbs** » Sat Sep 25, 2010 2:23 pm

Finally had a chance to try to tune with my wires laptop today. Still no luck with the ostrich. I got about 2 min before it stopped working. Could it have anything to do with not using an aldl cable at the same time? I don't see how, but that seems to be the only difference. I plan to get one as soon as moates gets them back in stock. At least that way I can tune with chips faster.

Six_Shooter · Post by **Six_Shooter** » Sun Sep 26, 2010 6:45 pm

While I have never used my Ostrich without using my ALDL cable while tuning a '7747, it won't effect the performance of the Ostrich.

Wait a tick.....

Something just crossed my mind here.

Have you disabled the checksum by replacing the mask ID byte 0x04 that has "42" there with "AA"?
In Tuner Pro RT V4, there is a setting for this in preferences that allows you to "disable checksum when uploading", and allows you to select the byte you want to use. V5 does not have this feature. Mark removed it due to people being confused by the use of it.
For the '7747, and a few other ECMs, that mostly use the 2732 PROM, use 0x04, other ECMs, such as the '7730/'7749/'7727 use 0x08. Later ECMs, such as the '7427 ('93 to '95 TBI), use another location for this byte that is eluding me at this point.

I apologize for not thinking of it sooner, this should take care of your problem.

PhilStubbs · Post by **PhilStubbs** » Mon Sep 27, 2010 4:35 pm

I found that in preferences but didn't know it had to be loaded to 04. I checked the box and it loaded it to 08 I guess. I will try that tomorrow and see if it fixes it.