Like the title says, I've done an ECU reset on my g sedan, and when I went to start it, the car went on for a second and then shuts off, everytime I try to start it afterwards it would just turn off quicker. I'm not sure if its a battery problem or what, the key is also in the slot as well so it can't be due to the key fob, so if anyone has any suggestions please let me know cuz this is beyond frustrating.

 

Can you put the car in ACC and get any diagnostics/codes ?

 

If you give it a little gas right after it starts but before it stalls out, does it stay running? It would also help to know what procedure you used to reset the ECU. The ECU reset procedure is very similar to the Idle Air Volume Learning procedure, and if you did the latter improperly, that could certainly cause your car to stall out.

 

I can put the car in ACC, i just dont have a code reader to see hat the problem is

 

https://youtu.be/95WszTnphPI this is what i did, also is there a way to attach videos on here without posting on youtube? I can show you what happens when i start it, the car drops to 0 rpm and it shows that i need to start it again on the screen where the speedometer is

 

That's the proper procedure, but i'd suggest you disconnect the negative battery cable for 30 minutes, reconnect it, and try to start the car again.

Also, what is your mileage and have you ever cleaned the throttle bodies?

What were you trying to accomplish with the ECU reset?

 

The magic everyone thinks happens when you do it?

 

Yeah... most likely.

Here's my theory: the computers in these cars adapt to changing conditions in the engine over time, not just your driving style. Say your throttle body has crudded up over time, which causes insufficient idle airflow due to the added restriction. The ECU responds over time by changing how much the throttle plate is open at idle. You proceed to reset it to its default setting. There is now not enough airflow to keep your car running at idle and the car doesn't run long enough without stalling for the ECU to adjust to this condition.

-Unplug the battery
-Clean the throttle bodies
-Reconnect the battery
-Perform the Accelerator Pedal Released Position Learning procedure
-Perform the Throttle Valve Closed Position Learning procedure
-Perform the Idle Air Volume Learning procedure
-Don't fix things that aren't broken

 

The code is P-1233, it is a throttle body control issue. I saw videos on youtube and it said to buy a throttle body and air intake cleaner. Thanks for your help, I'll keep you guys updated on whether it'll start or not after I clean them

 

follow the guide in the DIY section carefully. Bank 2 is drivers side, but clean both. Hopefully it's just crud and you don't need a new throttle body.

 

Just cleaned them and they were filthy, and still the same issue, rpm drops to 0, and doesn't start.

 

did you disconnect the battery and do all the relearn procedures afterwards? Did you try giving it some gas when starting to keep the revs up? If you're still stuck, you might just need to take it to a dealer to get your ecu reflashed. Or you need a new throttle body or related sensor and it just so happened to fail by coincidence

 

Yeah, I disconnected the battery overnight, still nothing. Oh well, getting it towed tomorrow, my guess is that it could be something to do with the fuel pump as well, but when I plugged in the code scanner it still read the same code P-1233

 

Did you ever figure out what was wrong? Followed the same video as you and have the same problem.

 

Hey, yeah it turned out my drivers side throttle body needed to be replaced.