Poor Engine Start and High Fuel Consumption. Check These 2 Sensors to Fix the Problem

[@sjg4967]

My 98 2.8 A6 starts perfectly from cold but if it is hot after it has been sitting for about 20mins it has a long crank and likes the throttle depressed and I can't work out why. It has has a coolant sensor and fuel pressure valve so i may investigate the air temp sensor - thank you.

[@autoyteng]

Hello. In your problem, it is definitely worth checking the crankshaft position sensor.

[@sjg4967]

@@autoyteng Oh! I would not have thought of that - thank you!