disco td5 auto 1884 low torque fault,haukeye readings

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poloracer877

Active Member
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153
Location
bridgnorth shropshire
Hi my disco was s tugging with its auto box today haukeye total says 1884 low torque, been reading on here about coolant sensor being faulty, I've been looking at live data and I've got these readings,idle 769rpm outside temp 7 degrees, cylinders 1 to 5 all read the same roughness 0 to +1, driver demand sup 5.03 volt, driver demand 2 4.54 volt, driver demand 1 0.51 volt, battery 14.04 volt, maf sensor 1.63 volts, airflow 41.00kg/hr, manifold pressure raw 101.0 kpa, manifold pressure 100.3kpa, ambient pressure 100 kpa, fuel sensor 1.55volt, fuel temp 50.9 degrees,intake air sensor 2.60 volt inlet air temp 26.3 degrees,coolant sensor 1.09 volt, coolant temp 66 degrees . On gearbox live data requested torque 99.61percent , reduced torque 5.47 percent. Bat 14 volt, can anyone tell me if these figures look OK, cheers phil
 
Hi, the airflow reading is low, take a ride with the MAF unplugged and if it runs better you need a new one, eventually clean it with MAF cleaner but it rarely fix it... only genuine is 100% reliable.... is it Eu2 or Eu3 engine?

here's a list of normal readings:
 

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I've disconnected maf sensor cleared all fault codes and took for test drive, gears work better and torque converter locks, car is really under powered though, no fault codes come back on gearbox ecu, and to be expected engine ecu shows lack of air, also on live data it shows the turbo actuator valve, going along with no revs it reads 0 percent so I went up a hill and put my foot to floor and it read 7 percent but most of the time was around 3.9 percent
 
If it's Eu3 engine only with a well working MAF will be as it should cos that's the first calculation element, with it disconnected the ECU goes to default on MAP/IAT and it's not the best.
 
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