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MC84

Member Since: 22 May 2016
Location: Near Bristol
Posts: 360

TD5 2001 Sluggish sometimes and Nanocom results

Hi, I have a few question I'd like to pose:

Sometimes I hop into the truck and it feels a bit sluggish generally. Other times, like now, it seems very lively when accelerating. Both from cold or hot and using the same roads. I read that the MAF (I think!)sensor can cause this. I recently bought a Nanocom on the collective purchase on this site and I'm wondering if I can use this to check the MAF value and compare it to other peoples running a similar truck.

What do you think?

I have also fitted a EGR blanking unit. I have read through the forum the cables to it should be disconnected so the ECU doesn't see it. The instruction only said to blank off some nipples where the small pipes were removed. Again, your thoughts and options would be welcome here. The engine is the earlier 10...... type unit.

I've only had time to have a quick look at the Nanocom but one error that seems to be logged says "(1,7) Air Flow Circuit, (Logged Low)". There are others related to air con (that I don't have) and Tacho drive open load and another saying Gearbox/ABS drive open load (again, I don't have ABS)

Thanks in advance,

Mike Mike

Hard Top 90 TD5 2001
Ford 100e 1959
www.youtube.com/mikemakesit

5th Oct 2016 3:31am

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2943

You could start by just fitting a new MAF unit, they are a common cause of running issuea and not expensive.

OE ones cost £80 and are reconmended but l fitted a cheap £30 one in the missus's 90 TD5 and it's been fine.

5th Oct 2016 6:56am

mk1collector

Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6772

Just unplug the maf for a week and see if you get your power back. Ray
My build thread
http://www.defender2.net/forum/topic17615.html

5th Oct 2016 2:54pm

roel

Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

If you have your Nanocom read the airflow. Maybe google the values but I believe they should be arounf 55 kg/s at idle and around 600 at full power and high revs.

always around 4 is a dead one but you can also have around 40 orso at idle and 350-400 at full load. Then is is giving wrong values and your Landy will have low power. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)

6th Oct 2016 6:06pm

Harry.O

Member Since: 25 Jul 2014
Location: Warwickshire
Posts: 716

As Roel said, 4.4 is the standard MAF reading when it's dead, it should read about 55 at idle.

Similar issue with mine a while back, a new MAF solved it but it took a few days for the ECU to recalibrate itself - http://www.defender2.net/forum/topic48017.html

8th Oct 2016 10:57am

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