hi there this is my first forum post.e320 cdi 211.026
im having a problem rectifying a fault code 2025 pressure sensor downstream of air cleaner,signal voltage is too low permanent
now a list of changed components;turbo,aps on mass meter,ecu went to bba reman for testing no fault found
as specific as possible
here is where im at;on live data i have a reading of 1025kpa on the air filter atmospheric pressure sensor. ive got a 5v feed on the brown wire of the atmosperic pressure sensor the red wire shows a 3.56v then when i vacuum the sensor it rises to 4,80v max so i have a reaction reading sensor end.ecu end i find the same red wire splice in and get the same 3.56v then when i vac the sensor the voltage rises to max 4.80v showing that the ecu is recieving the data from the sensor.the problem is that the 1025kpa live data does not change no matter how much i vac the sensor.any ideas please?has the ecu tripped for any reason not to recognise an atmospheric air pressure sensor?thanks
im having a problem rectifying a fault code 2025 pressure sensor downstream of air cleaner,signal voltage is too low permanent
now a list of changed components;turbo,aps on mass meter,ecu went to bba reman for testing no fault found
as specific as possible
here is where im at;on live data i have a reading of 1025kpa on the air filter atmospheric pressure sensor. ive got a 5v feed on the brown wire of the atmosperic pressure sensor the red wire shows a 3.56v then when i vacuum the sensor it rises to 4,80v max so i have a reaction reading sensor end.ecu end i find the same red wire splice in and get the same 3.56v then when i vac the sensor the voltage rises to max 4.80v showing that the ecu is recieving the data from the sensor.the problem is that the 1025kpa live data does not change no matter how much i vac the sensor.any ideas please?has the ecu tripped for any reason not to recognise an atmospheric air pressure sensor?thanks
