P0068moderate severityPowertrain
MAP/MAF - Throttle Position Correlation
on 2008 Audi R8 4.2L V8 · AWD
What this code means
The MAP or MAF sensor reading does not correlate with the throttle position sensor reading.
Symptoms
- Check Engine Light
- Poor acceleration
- Rough idle
- Stalling
Common causes
- Intake manifold vacuum leak
- Faulty MAP or MAF sensor
- Throttle position sensor issue
- Intake gasket leak
Diagnostic steps
- Check for vacuum leaks
- Test MAP/MAF sensor readings
- Test TPS
- Inspect intake gaskets
Repair notes
Repair vacuum leak or replace faulty sensor.
🔌 Don't have a code reader?
Any of these will read and clear this code — pick by how deep you want to go.
Bluetooth code reader (~$25)
Veepeak OBDCheck BLE →
Pairs with your phone — reads and clears codes, live data.
Serious DIY (~$100)
BlueDriver Pro →
Enhanced codes (ABS, airbag, TPMS) plus repair reports.
Shop-grade tablet (~$300+)
Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
As an Amazon Associate, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.
Other Powertrain codes on this vehicle
00532
Supply Voltage B+ Signal too Low
16394
Camshaft/Crankshaft Position Correlation Bank 1
16395
Camshaft Position Actuator Circuit/Open Bank 1
16486
Mass or Volume Air Flow Circuit Low Input
16487
Mass or Volume Air Flow Circuit High Input
16500
Engine Coolant Temperature Circuit Malfunction
16501
Engine Coolant Temperature Circuit Low Input
16502
Engine Coolant Temperature Circuit High Input
16514
O2 Sensor Circuit Bank 1 Sensor 1
16515
O2 Sensor Circuit Low Voltage Bank 1 Sensor 1