Thread: Nanocom Readings

Originally Posted by Ralph1Malph

Thought I'd throw this out there for discussion and comment.
I built this D2 TD5 primarily from donors, so very little and very few of the components are new.
I started looking at stuff because occasionally, it won't pull the hat off your head until 2100RPM, which is not uncommon for a TD5, but in this case, it sometimes struggles to get to 2100!

Anyhoo, what y'all think of these numbers?

For perspective, the peaks were obtained at about 3000- 3200 RPM.
With ambient approx 100, that makes the boost about 116 kpi or 16.5 psi.

Can you post the log?

Originally Posted by shack

Can you post the log?

Done. It's short as I tried to capture the problem.

Off the top of my head with a glass of red wine in hand I reckon the airflow readings are a bit low, so unplug the airflow sensor and see if that makes a difference. If so then you’re probably up for a new airflow sensor as the old one is on the way out.

Alternatively try cleaning the sensor but only do it when it is stone cold and be gentle as the filament in the centre is delicate. Use either airflow sensor cleaner or contact cleaner.

Cheers

Steve

Originally Posted by Rok_Dr

Off the top of my head with a glass of red wine in hand I reckon the airflow readings are a bit low, so unplug the airflow sensor and see if that makes a difference. If so then you’re probably up for a new airflow sensor as the old one is on the way out.

Alternatively try cleaning the sensor but only do it when it is stone cold and be gentle as the filament in the centre is delicate. Use either airflow sensor cleaner or contact cleaner.

Cheers

Steve

I believe I have some cleaner, I'll give it a go. I also have a second MAF from a donor, but can't vouch for it's condition.

For a clear view you should attach the table where the values are clearely shown in columns not that graph

Tap on the SB001.csv link above the graph

Originally Posted by sierrafery

For a clear view you should attach the table where the values are clearely shown in columns not that graph

Cheers Steve

Originally Posted by Rok_Dr

Tap on the SB001.csv link above the graph



Cheers Steve

Sorry, i missed that, in those readings two things are obvious, the air flow is too low under load, and the IAT side of the MAP/IAT sensor is all over the place, I'd replace it with a new one then try with unplugged MAF and if it's better that one too

Okies, swapped out the MAF for my donor car MAF (after a clean).

I also noticed that after I did the EGR delete, I didn't remove or cap the blue vacuum line from the valve to the modulator.

I think it runs a bit better, here's the file:
SB002.CSV

Cheers
RJ