Lainishh

I have a 2003 350z which was disconnected from its battery for 2 months due to getting body work after a minor accident. The car runs fine and sounds fine, not internal components were affected in the accident only my front bumper and hood. The car has a check engine light and the code comes up with the "ECU" code when i had the code read. (i don't have the actual code because i forgot it; Autozone looked it up in their book and said it was due to my ECU. I have heard of ECU reflashing but didn't want to go through 130$ to find out it has nothing to do with a reflash. I've also tried resetting it via ignition/stepping on a pedal and blah blah. any one have any past experiences to help me?

dcains

iTrader: (15)

My friend, no code, no help. Sorry, but we're not telepathic. Take the car to any suto parts store and have it read again, but write it down this time. Better yet, spend $20 and buy yourself a code reader.

https://www.amazon.com/Foseal-Scanne...s=obdii+reader

Logiqal

iTrader: (1)

^ What he said.

HCO_surfer

If it's a code related to the ecu and it's been unplugged i bet it's P1065. This commonly happens when the z has been unhooked for a while. You can clear the code and it shouldn't come back.

travlee

iTrader: (8)

my internet mechanic crystal ball (sponsored by webMD) says your car has gonorrhea

shaq77fan

^^^ LAFF!!!^^^

travlee

iTrader: (8)

in all seriousness, like dcains stated without a code we will not know where to start. suck it up, take it to nissan for a proper diagnosis

Lainishh

yeah it was a pl065. i got the car re-read. i ended up dropping it off at Nissan. thank you! hopefully it just needs a code cleared or to be reflashed

Lainishh

UPDATE : i brought the car to Nissan, apparently the code was erased and hasn't returned after I disconnected my battery (the CEL was still on but for a misfire) so i brought it to Nissan for nothing...well a Misfire code ...ugh lol. Code was pl0065 -- ECM Back up.

CK_32

iTrader: (1)

Yea my car threw codes too after I unplugged it.

Mine was the MAF and some other bits. Appariently it's common for these cars to throw codes when unplugged for a period of time. Like you I was told to just reset the ECU and no codes have been thrown since.

I had 4...

Varun Bajwa

is it important to drive car after ecu reset ?????as a video shows on youtube tells that drive car after rest as your car start learning things again

Varun Bajwa

how long u disconnected Ur battery???

Atreyu'z 350

Yeah. It usually takes around 25 - 30 miles for the ECU to complete the 'readiness check' after being reset..

Atreyu'z 350

Disconnect the negative battery terminal and turn on the headlights for 6 hours.

travlee

iTrader: (8)

While singing the hokey pokey......that is the key

Atreyu'z 350

...then followed by a circle jerk.