A modern vehicle has many sensors and modules. There are oxygen (o2) sensor simulators, but such equipment are not for street vehicles due to emissions regulations. Emissions regulations vary by jurisdiction and must be verified first before using them in pollution controlled vehicles.
Check the engine coolant temprature sensor it may be sending the wrong signals to the ECU making the ECU think the engine is cold and overfueling the engine.
I think the sensor are on the gearbox , and send it to the transmision ecu
There is not a single ECU sensor. There are dozens of sensors on this car that feed the ECU
The speed limiter program is located in the ECU. Some companies make "boxes" to fool the ECU. Otherwise, unplug the speed sensor, and use a portable GPS to measure speed.
Most likely to be a faulty coolant temprature sensor It will be sending the wrong data to the ECU making the ECU think that the engine is cold And increasing the mixture strength Possibly causing the engine to flood
inside the ecu
The ECU is in the engine compartment on a 2002 Pontiac Grand Am. It is the sensor behind the converter.
Because the oil pressure sensor has leaked and the oil has travelled inside the wiring to the ECU.
in the ecu
your map sensor is fine , there is a short somewhere so your ecu is not reading it your map sensor is fine , there is a short somewhere so your ecu is not reading it
Need to know what engine you have.
Yes as the lambda sensor supplies data to the ECU to control the fuel mixture