Search found 6 matches

by DaveEV
Sat Jul 15, 2023 1:39 am
Forum: Nissan
Topic: Newb Probs with UDC
Replies: 8
Views: 6452

Re: Newb Probs with UDC

ok, now I've lost the WiFi link... and 5V out the plug is only 2.3V... might have a 5V issues, probably due to my poor soldering skills. I've been practicing, have some better tools, think I'll open things up and take some readings from the actual board. :?
by DaveEV
Mon Jul 10, 2023 6:59 am
Forum: Nissan
Topic: Newb Probs with UDC
Replies: 8
Views: 6452

Re: Newb Probs with UDC

oh man, I hate to revive this thread but... UDC is not picking up voltage anymore. I had this working, but had moved on to other things waiting for some parts to arrive. Five months later, I'm not sure what happened. The nice UDC plot showing the capacitors discharging is gone; UDC now looks like a ...
by DaveEV
Sat Dec 10, 2022 8:37 pm
Forum: Nissan
Topic: Newb Probs with UDC
Replies: 8
Views: 6452

Re: Newb Probs with UDC

Went and double checked my very amateur soldering, and looks like I missed a short on on the UDC feed. UDC is measuring 297, feel like I'm back on track, just embarrased.... more to follow as I continue my wiring and calibrations
by DaveEV
Mon Nov 14, 2022 8:22 pm
Forum: Nissan
Topic: Newb Probs with UDC
Replies: 8
Views: 6452

Re: Newb Probs with UDC

... hence "udcofs"... :idea:
by DaveEV
Mon Nov 14, 2022 6:09 am
Forum: Nissan
Topic: Newb Probs with UDC
Replies: 8
Views: 6452

Re: Newb Probs with UDC

Unfortunately I have nothing to add to the linked thread. Nissans voltage PWM is either not working or lost somewhere on the way. If you have a scope try finding the signal right on Nissans gate drive board and then follow it towards the main board. Thanks Johu. I don't have a scope, but I'll see w...
by DaveEV
Fri Nov 11, 2022 9:12 pm
Forum: Nissan
Topic: Newb Probs with UDC
Replies: 8
Views: 6452

Newb Probs with UDC

Hi Friends, I'm "working" on swapping Leaf Gen2 (2013) motor/inverter into an NB Miata (1999). I gave myself a year, and am about 4 months in. I bought the Leaf Gen2 Community Edition , think I have it assembled and installed properly, but am having UDC issues similar to @E46driver here . ...