What does a ECU reset do?
“Resetting the ECU” is the process of clearing all the long term memory from the ECU’s memory. These variables trim idle speed, fuel, spark, and more. The ECU will also store trouble codes for diagnostic capability. First rule when doing anything to the ecu is to disconnect the battery.
Why does my Nissan Altima not start up?
The timing chain (or belt) is responsible for keeping the upper valve train synced with the crankshaft. This is vital for spark timing. If the timing is off a little and the engine still runs, the timing belt may have skipped. If it has jumped too much the Altima may not even fire.
Why does my Altima not accelerate when the RPMs go up?
If your Altima won’t accelerate, but the RPM’s go up it’s usually not going to be an engine related issue. Somehow, the power that your engine is creating is not making it to the rear wheels. This is typically a transmission related issue. Here are the most common cause of acceleration with the RPM’s going up:
Why does my Nissan Altima not change gears?
If you’ve broken a drive/axle shaft, your Nissan Altima’s transmission has no way to turn the wheels anymore. If this were the case, there would not be any movement whatsoever from the vehicle. You also wouldn’t feel the slight jerk your Altima as you put it into gear.
Why does my Nissan Altima not speed up?
If your Altima won’t accelerate, but the RPM’s do not change, that is an indication that there is an issue with creating power. The issue is going to be something affecting the motor. Here are some common issues that can affect the motor:
Is there check engine light on Nissan Altima?
Then all of a sudden it’ll go. There is no check engine light and no codes. If I turn the car off, it’s like it resets and has more power afterwards. could not get it to recreate, and has no clue. again. The dealer is at a loss as to what to do next. Any thoughts? I see a lot of talk being thrown. I have the same problem on my 2016 Altima.
What’s the issue with my 2016 Nissan Altima?
I am having the exact same issue 2016 Nissan Altima, 92K miles and when I was at stop light, when it turned green I had pedal to floor and it barely went. The RPMs went up though. I have also noticed the RPM would go high while driving and changing gears.
What should I do after replacing a sensor on my Nissan Altima?
In one of the articles there was something that I found interesting. One guy said that after you replace a sensor, such as the Mass Air Flow, you should hook up a battery charger to ensure you have a steady source of 12 VDC while the sensor is being adjusted.