1999 A6 2.8L with 280K kms. For about 3 weeks now, car is hard to start. If the car is off for more than 1 hour, it is hard to start. Within 1 hour restart, no problems in starting. Changed fuel pump, got new timing belt service done, synthetic oil change every 5K. Unplugged MAP sensor to check but problem continued. Check engine light is not on. Any suggestions? Thanks

 

If you like I can scan it for you, see if any codes are thrown. How is the battery? Does it hold the charge well?

 

Thank you very much for the scan. Please let me know when it is convenient. Battery was changed last summer and yes holds charge quite well. Was in vancouver last week and the car had NO hard start issues. Thought if it helps. Back in calgary and started again.