[ZTUNER]

Originally Posted by waterp7

They updated the software in my car yesterday. Now the priming of the fuel pump after you unlock the doors is clearly audible with a pretty loud whizzing sound. The old sound was rather quiet.

My HPFP was replaced nearly 3 years ago and I haven't had a problem since. Will they be replacing it with the 943 pump only if I have a problem later?

That's the electric fuel pump that feeds the hpfp. If you hear it now it means it's running a higher voltage thru the fuel ump controller. I doubt this will have a long term impact on the longevity of your hpfp.

Harry

[ViperJPB]

I got my car back today and they indeed did not change out the fuel pump but updated the software and re-programmed. They said they are 98% sure that I won't have anymore problems. So how long do I have before the pump goes? I am surly going to check into that new pump when the time comes. Here's to hoping my trip to the coast goes smoothly this weekend.

[HTRules]

Originally Posted by ViperJPB

I got my car back today and they indeed did not change out the fuel pump but updated the software and re-programmed. They said they are 98% sure that I won't have anymore problems. So how long do I have before the pump goes? I am surly going to check into that new pump when the time comes. Here's to hoping my trip to the coast goes smoothly this weekend.

As I've mentioned before, the software update is a band-aid applied to this problem.

The software changes the parameters under which the ECU throws a code. In other words, let's say a code is generated whenever the pressure goes above 20 psi or below 10 psi (wildly off actual values, btw). The software changes the values to something else, let's say 30 and 5. So presto - HPFP is still malfunctioning, or at least not operating as it was designed, but no fault code is displayed in your dash display! It's magic.

Software can't 'fix' hardware...we're all standing by waiting for the new pump.

Rick