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ECU

stanlylong
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stanlylong Member

stanlylong

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Posted

I am trying one more option before I empty my savings account to the dealership(lol) I have a 99 porsche boxster, what I am wondering is there any signs or anyway to check to see if the ecu is faulty. I have replaced the ignition switch and jumped the clutch switch also checked all the fuses. It will power up all the accessories and the silnoid will click but it will not attempt to turn over, thats why i think its something electrical. I am no auto guru just joe the plumber I need some help from the wealth of knowledge from the porsche gods....

catmanluge Member

catmanluge

Posted
Posted
I am trying one more option before I empty my savings account to the dealership(lol) I have a 99 porsche boxster, what I am wondering is there any signs or anyway to check to see if the ecu is faulty. I have replaced the ignition switch and jumped the clutch switch also checked all the fuses. It will power up all the accessories and the silnoid will click but it will not attempt to turn over, thats why i think its something electrical. I am no auto guru just joe the plumber I need some help from the wealth of knowledge from the porsche gods....

Have you tested the starter motor itself?

Mr. D-987 S Member

Mr. D-987 S

Posted
Posted
I am trying one more option before I empty my savings account to the dealership(lol) I have a 99 porsche boxster, what I am wondering is there any signs or anyway to check to see if the ecu is faulty. I have replaced the ignition switch and jumped the clutch switch also checked all the fuses. It will power up all the accessories and the silnoid will click but it will not attempt to turn over, thats why i think its something electrical. I am no auto guru just joe the plumber I need some help from the wealth of knowledge from the porsche gods....

Is it a manual? If so, have you tried push starting the car?

Recently, my A4 has some weird electrical problems on the way to work. When I got there, I shut it off and it wouldn't start again. Turns out the problem was an ignition switch recall that I never had performed. (Oops) However, the bad ignition switch burned up the starter. (double Oops) I was able to push start the car with the help of a friend to get it to the dealer to get the recall done. They diagnosed the faulty starter, as well. (it was probably the starter solenoid but on the A4 it's part of the starter). I replaced the starter and all was fine.

Good luck...

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RFM Member

RFM

Posted
  • Moderators
Posted

I would check the battery first, than the starter and the grounds. If the solenoid will click, you can exclude the ignition and clutch switch already.

stanlylong Member

stanlylong

Posted
  • Author
Posted

great news!!! I did what you said and push started the car and it cranked right up. So does that definitely mean the starter is bad, I have tried everything for two weeks so believe me when I say thanks alot...

Mr. D-987 S Member

Mr. D-987 S

Posted
Posted
great news!!! I did what you said and push started the car and it cranked right up. So does that definitely mean the starter is bad, I have tried everything for two weeks so believe me when I say thanks alot...

The next step would be to measure the voltage to the starter to make sure it is getting the proper current. If it is getting the proper current, it is most likely the starter. I have never done this on the Boxster so I have no idea where the starter is or how difficult it is to get to.

By the way, I am assuming you have checked the battery. ;-) If you were able to push start the car and it runs fine, then I would say it's most likely the starter or solenoid but check the voltage at the starter to be sure.

Disclaimer: Keep in mind I am not a mechanic, so please get a second opinion. :-p

Good luck!

renzop Member

renzop

Posted
Posted
.. I am no auto guru just joe the plumber..

Well, there's your problem right there. Everyone knows that Joe the Plumber should not be driving an elitist furrin' car like a Porsche. :-)

Seriously, though. Have you checked the battery voltage? You need to see at least 12.7 volts on a good voltmeter to start the car.

stanlylong Member

stanlylong

Posted
  • Author
Posted

I have not checked the battery I assumed it was ok since all the accessories were working but when it first happen I did try to boost it with battery cables but didnt work....

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