High diesel consumption
#1
12-11-2018, 01:54 AM
High diesel consumption
I bought an Audi A4 2.5L 132kW (2002) as second hand car. It uses way too much Diesel, over 10L on average, even when driving like a 90-year old.
Following error codes are given by its ECU:
*** ENGINE ***
01375 - Engine Mounting Valve - Stage 1 : Output does not switch/short circuit to B+
00575 - Intake Manifold Pressure : Control Limit Exceeded
01442 - Misfiring due to lack of fuel
*** CLIMATE CONTROL ***
00819 - High pressure Sensor : Short circuit to ground
As far as I can tell, the error code 00575 seems interesting in the regard of high diesel consumption.
This site: 00575 - Ross-Tech Wiki tells me 2 possible causes for this error:
I must say, the car drives pretty well, I think that with a defective turbo charger it would feel as if "underpowered" - therefore my suspicion is that it's the N75 valve.
Following error codes are given by its ECU:
*** ENGINE ***
01375 - Engine Mounting Valve - Stage 1 : Output does not switch/short circuit to B+
00575 - Intake Manifold Pressure : Control Limit Exceeded
01442 - Misfiring due to lack of fuel
*** CLIMATE CONTROL ***
00819 - High pressure Sensor : Short circuit to ground
As far as I can tell, the error code 00575 seems interesting in the regard of high diesel consumption.
This site: 00575 - Ross-Tech Wiki tells me 2 possible causes for this error:
- Solenoid Valve for Boost Pressure Control (N75) defective
- Turbo Charger defective
I must say, the car drives pretty well, I think that with a defective turbo charger it would feel as if "underpowered" - therefore my suspicion is that it's the N75 valve.
Last edited by Wruce Billis; 12-11-2018 at 02:02 AM.
#2
02-02-2019, 06:39 PM
If its your Turbo you would definitely feel loss of power, recently my wastegate was an issue, once I fixed it the performance came back. Considering your is a diesel I'm certain you would notice a heavy performance issue... - just my two cents worth
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