Im having ecu problems. I wanted to know what model ecu i have. I called infiniti they said the production date was sept of 2002 and that the ecu that came with my car is 23710. My question is whats the dates where the ecu was changed. I have Non Doggy Door.

Most likely you have the black connectored more modern G35 ecu.

I have not come accross any non-doggies with the early gray connector maxima ecu

IIRC a lot of the changes from 03.0 to 03.5 happened it 08/02... so you just might have the newer ecu.

Call UpRev with that info and ask them if they offer support. If they do not, you have an early ECU.

This thread was def for you. I was waitin on your answer because a while back I read you talking about the ecu change and the production of the new ecu dates. I'm going to up to uprev for them to take a look at and tune the car hopefully the problem goes away.

^Don't quote me, I'm not 100% sure

Your absolute BEST bet would be to simply get to your ECU and check the connector style.

How the heck do I do that. Lol where is the ecu located in the car is it under the driver seat?

Wait, I found it.

All you need is the last 6 digits of your vin number:

APPLICATION NOTICE PFP:00000
How to Check Vehicle Type ABS0094O
Automatic Transmission
Up to serial 329287
except 327918, 327920,
327976, 327978, 328979,
329004, 329025, 329078
TYPE 1


For serial 327918, 327920,
327976, 327978, 328979,
329004, 329025, 329078 and
from serial 329288
TYPE 2

The last 6 is 303808

So from my understanding type 1 would be the old ecu?

Yeah.

Bummer... sorry dude


edit: I'm assuming your car is an Automatic, right?

Yea its an a/t so does that mean uprev can't tune my ecu?

I don't understand why if I don't have the doggy door this really just upset me a lot !

Do you think Nisan Fast will show what ECU he has from the VIN?

^IDK. I forgot to install it!