Yes, Paul has steered me straight on more than one occasion ;).....thanks Paul.Quote:
Originally Posted by LRDTD5
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Yes, Paul has steered me straight on more than one occasion ;).....thanks Paul.Quote:
Originally Posted by LRDTD5
I have a poorly performing 99MY TD5 Defender Extreme and the nanocom shows a MAF of 0 at idle and not much more when running. guess it is obvious what I need to do...
But the puzzling thing is it shows an inlet air temp of about 2C which is clearly wrong up here in FNQ! Where is the sensor that gives this info? The car intermittently has lousy torque at low to mid revs then suddenly takes off like a jack rabbit. Would the temp sensor be a factor in this?
howard
Sounds seriously wonky. The ECU will default to 4.5 with no input from the MAF so you've go something strange going on. Check the resistance between the connector pins on the MAF that will tell you if the MAF is suspect or not. One thing I'd note - there is some doubt as to whether the 19-20M ohm should be classified as "dodgy". More than one brand new VDO/Siemens MAF has measured this resistance.Quote:
Originally Posted by HowardSmall
http://www.aulro.com/afvb/technical-...ml#post1638565
The temp sensor is part of IAT/MAP which is about mid-way along the intake manifold. The IAT/MAP is used to calculate the density of the air in the intake manifold which is critical for correctly fuelling the the engine.
The fact that you have two sensors showing very low readings makes me suspect that you might have a damaged engine harness. Carefully check the wiring from the point that the IAT/MAP loom joins the harness back to the ECU for rubbing and obvious damage. The other thing you can do is unplug the harnesses at the IAT/MAP and ECU and check that there is no continuity between the pins in the plug at the IAT/MAP sensor.
cheers
Paul