understanding Nanocom data TD5 disco

[biolandy]

Just recently got a Nanocom (Thanks Garrett) on a LZ multibuy ,and finally got it plugged in y'day.
Reading the live data I am getting zero on air flow and also zero on turbo pressure.(engine is running ok and turbo is spooling)
Presumably this means both the MAF and MAP are dud or need cleaning or no connection

 

[sierrafery]

check the fault codes too, you should have air flow and manifold pressure fault codes stored if the sensors are gone but at 0 reading it's quite likely they are though for the MAP go to fueling inputs not instrument and you should get at least an ambient pressure reading(around 100Kpa) ...check fuse F2 in engine bay to rule it out cos it's the supply for MAF and wastegate modulator together

 

[biolandy]

check the fault codes too, you should have air flow and manifold pressure fault codes stored if the sensors are gone but at 0 reading it's quite likely they are though for the MAP go to fueling inputs not instrument and you should get at least an ambient pressure reading(around 100Kpa) ...check fuse F2 in engine bay to rule it out cos it's the supply for MAF and wastegate modulator together

Thanks S.F. much appreciated

 

[biolandy]

check the fault codes too, you should have air flow and manifold pressure fault codes stored if the sensors are gone but at 0 reading it's quite likely they are though for the MAP go to fueling inputs not instrument and you should get at least an ambient pressure reading(around 100Kpa) ...check fuse F2 in engine bay to rule it out cos it's the supply for MAF and wastegate modulator together

F2 is good and have fault logged "no airflow"so think it is just MAF that is gone(I have a MAP reading~100Kpa-my mistake).
Try the BMW you suggested on the other thread?
Do I need a MAF?(What is the benefit?)-goes like stink anyway,but does run better on bio than derv,maybe extra Oxygen in bio compensates for no MAF?

 

[sierrafery]

if your's is de-EGR'd it might make no difference with unplugged MAF as long as the fuel consumption is good and no black smoke, i observed that early non remapped manual modells have a fuel map in which the MAF's involvement in fueling is quite reduced or none at all as the MAF readings are used mainly for EGR management, i made all kind of tests with my 2000 manual on the original chip, MAF unplugged , good VDO MAF, BMW MAF, bypassed signal with TP sensor input and the engine running and fuel consumption was the same no matter in which configuration... though there are autos and latest modells which can be sensitive to lack of good MAF input, couldn't work out a clear pattern but that's my general conclusion