Why is my Nissan Versa losing power at 2500 rpm?
The ecm was responding to the varying O2 sensor data and either leaning out the mixture thus starving the engine and reducing RPM and power or going into limp home mode (which limits engine to 2500 RPM).
Why does my Nissan Versa go into limp home mode?
I rejected the limp home mode theory because there were no codes indicated and no pending codes stored; the shop manual indicates that if the ecm goes into limp home mode, it will throw a code that indicates what caused it to go into limp home mode.
What is the alternator voltage on a Nissan Versa?
I plugged in a data logger and monitored all ODBII data available. The data indicated that the alternator voltage was varying from approximately 14V (at 2500 RPM) to less than 12V (at 3000 RPM); at the same time both oxygen sensor voltages would vary as well as other related outputs.
Why does my Nissan Versa not accelerate when I push the gas?
There are a lot of different reasons that can cause this. Diagnosing the issue can be narrowed down by whether the engine is still revving when you push the gas or not. There is a section for each scenario with likely causes for each.
What causes no power when pressing gas pedal?
Click to expand… Good question…..if the motor was not revving up and the car won´t move, seems the TPS at the acc pedal assembly, is faulty..but the SES light should be on. This experience was with a friend’s car of mine…
What happens if you break the transmission on a Nissan Versa?
If you’ve broken a drive/axle shaft, your Nissan Versa’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 Versa as you put it into gear. 4. Bad Transmission
What happens to my car when I press the gas?
I still managed to get to work, but only after much struggle and pleading with my car. Now when I step on the pedal the engine doesnt rev and the RPMS seem to go DOWN, only until I floored the pedal and then they would jump to the 4-5-6 thousand range with my car jumping forward with the sudden acceleration.