i want to try reprogramming my ecm to get all the latest updates. when i called the dealership, they said that there are different types for different service bulletins. is that correct? i thought if you reflashed with the newest version it includes all the latest parameters, etc... i didn't realize that there was a separate version for an 02 update.

 

02 Maxima has 3 updates (A/T w/o TCS, A/T w/ TCS, MT.)
-Usually "Lack of Power" TSB will update to new software.

03 Maxima has 2 updates (A/T, M/T)
-Same as above. ;-)

 

the dealership told me to reflash the ecm would cost $80... I said no thanks and walked away

 

there is not a standard group of updates. there are updates that are part of certain tsbs. since it appears you have an 00, a few of them would be the maf, o2 sensors and tcm flash if you are auto. they are generally performed after the replacement of said items.

 

I was advised by Irish (who opinion I trust) that the dealer should NEVER have to touch the ECM. Example: I replaced my MAF sensor, Irish told me that all u need to do is disconnect my battery for a few hour, install the new MAF (updated part number...i.e. green dot) and reconnect the battery and the ECM will learn the new part. u know what, he was right. The car is faster and smother then EVER before and it keeps getting better.

 

i am not suggesting that irish incorrect. with the updated maf, you can just plug it up and go w/o the ecm flash. the problem is nissan released a flash for the ecu with the maf so it is changing/updating some parameters. i was just explaining the types of situation where nissan calls for an ecu flash. i have the updated maf w/o new software as well. besides, my vafc2 tells my maf what to do.

 

can we do it ourselves by any chance?

can we claim that they shouldflash it for free since it is an update for my car?

 

dealer has to do it

you have to pay for it...if you dont want to pay, dont get it done.