2001 Porsche Boxster I am not sure if part of the repairs that were done to my car were necessary.
I am not sure if part of the repairs that were done to my car were necessary.
What is your question?
My Porsche Boxster had problems when accelerating. I brought it to an independant mechanic. He said that it was the ECU. I sent the ECU for repair. He still said it did not work so I sent it a second time. When he still couldn"t fix the car (mainly because he was too busy with other cars) I sent the car to the Porsche Dealer.
He told them that it was the ECU so they started with that and told me that they had a communication problem. It was throwing a lot of codes. So the ECU had to be replaced.
After the replacement the car still did not run. Upon further testing they found out that the fuel pump needed to be replaced.
They still say that there were 2 problems the ECU and the fuel pump.
I think that it was the bad fuel pump that was causing a bunch of codes to set off.
I am wondering if a few thousand dollars was spent replacing an ECU was really necessary.
Any opinions would be appreciated.
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Hello! I know it can be frustrating to have this kind of thing happen, and I'm sorry you had this experience. I will say that in the auto repair business, it's often very difficult to know what the "root" cause of a concern is, simply because the diagnostic process often requires a good technician to validate that certain parts are "known good parts". When the shop manual states to replace the ECU, that's step one. Once you have a known good ECU, you continue the diagnostic flowchart, and in this case, the fuel pump was condemned. As a necessary path of diagnostic steps, the technician is right to require the ECU replacement before continuing to condemn the fuel pump. It's very hard to swallow as the vehicle owner, but it is very likely the steps that needed to be taken. As an added note, a failed fuel system could be failed due to a processor issue within the ECU, and hypothetically one issue could incite the other issue to occur. I am sorry that it can seem this unclear, and am glad your vehicle is running again.
