If your MAF is replaced with the new one (22680-AM600), does Nissan have to do the ECU update or just reset it?

Thanks.

 

All they'll do is clear the MAF error code.

 

Nothing on the ecu needs to be updated..

 

Did This MAF replace 226800-AN200?

 

That's 22680-6N200, replaced by 22680-6N201, replaced by 22680-AM600, the newest one.

 

Cool thanks, I thought that was an "A", anyway thanks

 

If your 2002-2003 defective/old/bad MAF was NOT a 22680-AM600, then the new 22680-AM600 MAF will be installed WITH AN ECU UPDATE. But this is only under the TSB for Hesistation/Lack of Power.

If you visit the parts counter at the Nissan dealer to order a 22680-AM600, you will NOT receive the update.

If you pay the dealer to replace the MAF, but do NOT specify that you want the ECU update, you will NOT receive it.

If you pay the dealer to replace the MAF and DO specify that you want the ECU update, they will see if you qualify for the update. IF YOU QUALIFY, they WILL update the ECU.

For those who originally had a 22680-AM600, you do NOT need the ECU update.

 

studman,
The TSB'S show that even some (early build dates) 22680-AM600 cars WILL need the ECM reprogramed but no new MAF, or am I mistaken?

 

my SM and Dave B told me both that the new MAF has the proper ECU firmware/version

 

Everyone read the 2 TSB'S, there are a bunch of cars that call for the new ECM software but not a new MAF (because they were built late enough to already have the 22680-AM600).

 

Sorry guys, I guess I'm just confused all over the place. I have a 2K, so does that mean I don't even have to worry about the MAF Sensor? Also, does the ECU update even apply to me?

If the answer to both questions is no, then what else could be the cause of the bucking, etc. other than trying TB cleaning and spark plugs?

 

No you don have to worry about the MAF or ECu upgrade with the 2000 or 2001, this is a 2002/03 prob. Now the other part of your question someone will help ya!

 

NT2SHBBY: Depending on the build date, the early 2003 models may "qualify" for the update, but it's not needed to fix problems related to the damage of the MAF sensor. The update for the 2003 models that already have the 22680-AM600 are to help the ECU calculate the air/fuel mixture more accurately. The 22680-AM600 hasn't been shown to be defective, but almost all the 2002's and the early 2003's were programmed with the same software on the ECU. Nissan had already discovered the issues with the 2002 model MAFs (22680-6N200 and 22680-6N201) and had corrected those issues with the introduction of the 22680-AM600. However, the didn't realize until AFTER the 22680-AM600 was being used that there was a fault in the coding of the ECU, which caused the update to be performed. Later model 2003's received the ECU update, while the 2002's and the early 2003's were still running on the older code. So they issued the TSB to allow for reprogramming of the ECUs to bring them up to the current version.

My speculation: NNA bundled it with the bad MAF sensor issues because they knew that the MAF sensors would eventually fail. This allowed them to not to have to issue a recall just for the ECU update, but it still allowed dealers to perform the update when a car qualified at no cost to the dealer. If my speculation is correct, then someone at NNA is making big bucks because they saved NNA some money in the long run.