Quote:
Originally Posted by Taf
The car was having starting problems. I found it was a sticky fuel pump relay. Took it apart, lubricated, reassembled. All OK now.
Whilst looking for a solution, I found a comment on a Czech Skoda site that said "after being left unused for a few days, fuel pressure will have dropped to zero, so before cranking the engine let the ignition switch stay on second position for 10 seconds to allow the fuel pump to operate and return full pressure".
I never knew that before. 
|
Most fuel injected cars prime the fuel system once the ignition is turned to position II, I've always given my cars a few seconds before engaging the starter for just this reason.
In fact, I once had a very strange problem with a Rover 45. If you jumped in first thing in the morning and turned the key, it would spin over fine but not actually start. Try again and it still wouldn't. Turning the ignition off for 15 seconds and then try again and it was fine. That 15 seconds wait caused the ECU to prime the fuel system again and it would then start. In the end a new battery sorted it