Charli
27th May, 2021, 11:46 PM
Hello Folks,
I have a problem with a car a 2001 e39 525d with the m57 engine that i bought for a project, now the funny thing is when i bought the car, the car had problems with the ECU(bricked many fault codes, no response on the gaspedal and smokes ect...) the car rested for 2 years in a garage, i put a 2 hand ecu in with the original eeprom and also the flash chip, and the car responded back on the gaspedal,no more fault codes ect, but i never asked myself the question how the ecu did bricked in the first place...so i have changed many mechanic parts to rebuild back this car in his original state, now the car smokes white fumes from unburned diesel( you feel it in your eyes)like before i rebuilded the engine, so i want to ask if its possible that maybe they did map the ecu before(maybe thats the reason that the ecu bricked in the first place i don't know) now about the situation on the car is, it starts just fine but when the car warms about 70°c it begins to smoke white unburned diesel, when you rev up the car about 2000rpm you feel the engine shakes a little bit, the smokes comes and go, when you give throttle white unburned fuel fumes comes out the tailpipe, the injectors are replaced( 6x reconditioned)when i rebuilded the engine,(the same symptoms like a faulty injector)i did a back leak test everything is in spec,also read it with INPA no faultcodes, the strange thing is also when i rev the car up on staionary the required demand for MAF and Turbo pressure does not go's up equal with the revs that i have(only the actual MAF and Turbo Pressure) that means that the sensors are giving back the info to the ECU but the ecu is not calculating...,is it possible that the previous owner mapped the car with the map off a 530d or someone messed with the map that i have does it makes sense, its like the injectors are fuelling to late or too much, and this because that the problem accures when the engines begins to warm up, everything is changed on the engine mechanical when it was required( rebuild original)...if some one can help me and see if its original 525d or messed up in attach the map file that i have pulled from the ECU
I have a problem with a car a 2001 e39 525d with the m57 engine that i bought for a project, now the funny thing is when i bought the car, the car had problems with the ECU(bricked many fault codes, no response on the gaspedal and smokes ect...) the car rested for 2 years in a garage, i put a 2 hand ecu in with the original eeprom and also the flash chip, and the car responded back on the gaspedal,no more fault codes ect, but i never asked myself the question how the ecu did bricked in the first place...so i have changed many mechanic parts to rebuild back this car in his original state, now the car smokes white fumes from unburned diesel( you feel it in your eyes)like before i rebuilded the engine, so i want to ask if its possible that maybe they did map the ecu before(maybe thats the reason that the ecu bricked in the first place i don't know) now about the situation on the car is, it starts just fine but when the car warms about 70°c it begins to smoke white unburned diesel, when you rev up the car about 2000rpm you feel the engine shakes a little bit, the smokes comes and go, when you give throttle white unburned fuel fumes comes out the tailpipe, the injectors are replaced( 6x reconditioned)when i rebuilded the engine,(the same symptoms like a faulty injector)i did a back leak test everything is in spec,also read it with INPA no faultcodes, the strange thing is also when i rev the car up on staionary the required demand for MAF and Turbo pressure does not go's up equal with the revs that i have(only the actual MAF and Turbo Pressure) that means that the sensors are giving back the info to the ECU but the ecu is not calculating...,is it possible that the previous owner mapped the car with the map off a 530d or someone messed with the map that i have does it makes sense, its like the injectors are fuelling to late or too much, and this because that the problem accures when the engines begins to warm up, everything is changed on the engine mechanical when it was required( rebuild original)...if some one can help me and see if its original 525d or messed up in attach the map file that i have pulled from the ECU