notsmartcars
New member
My friend john bought a panda diesel multijet on my recommendation because i am so pleased with mine ... Now his has always been a good starter but drive it for half an hour then turn off for half an hour or so it will start just as easy but will rattle and be a little lumpy. it is also not as smooth at low revs as mine...he took it to various experts who diagnosed a faulty injector dripping in after a run and making it smoke and lumpy but they could not be sure which one so it would be expensive to replace them all on the off chance it was the fault.. Now then the other day he had a management light come on so I put my seally code reader on and the faults came up as turbo over boost and sensor, a problem i.ve had with mine in the past so we checked the waste gate actuator with a foot pump and that was operating as it should but even after turning off the management light it would re light around 2 seconds after restarting the engine .. He then took the car home and as he uses the car every day fitted a new pressure sensor in the inlet manifold , the old one was full of soot... the engine is transformed from as it was no lumpyness pulls from low revs just like mine.. now then why...... I assumed the sensor only told the ecu if there was over boost in the system now I think there must be a diapham in there sensing boost pressure through the range... if thats the case was it sticking after a half hour run telling the ecu there was more boost than there was causing the ecu to put more fuel in .. may be causing over rich .. lumpyness and smoke....... now my car has done 135000 miles now on a tank full the trip will say an average speed of 42 mph,71 mpg now when I work this out for myself its aound 60mpg . Now most of its life i drive on a dual carriage way at around 65 ish there is one paticular hill where if i put my foot down i can see loads of grey smoke in my mirror as it clears its system which i have accepted as the norm then once at full boost 75ish there will be no more smoke...Now then as it is 10mpg over optomistic on the trip and if my thinking is correct is it possible the sensor sticks with soot so it does not register atmospheric pressure any more so slighty over fuels up to max boost not enough to put management lights on but enough to waste fuel... Im thinking some kind of reader must be available to plug in a laptop as I drive to let me know what is going off Ideas please
