2001 Boxster 2.7 ECU location

[R0gerB]

Hello,

noob to this site and have not been able to find a link with this information so i thought i would check and see if anyone knows where the ECU is located at on a 2001 boxster 2.7.

I have been having a strange problem that i believe is related to possibly a faulty computer. My engine temp light comes on and the gauge drops to the left as if it is reading the motor is too cold. It seems as though it pumps fuel into the motor when this happens and it starts running rough especially at idle. I replaced the engine temp sensor and flushed the coolant system, however this did not fix it. Sometimes if i hit a bump the gauge will jump back to normall or sometimes if i downshift and accelerate it will resume normall functions, but it is very inconsistent and i need to get this fixed promptly. I want to find where the computer is located and make sure there are no loose or faulty wires and possibly replace the computer to see if that fixes it. If anyone has heard of this problem before or has any ideas i would certianly appreciate the help!!!

THANKS!

[RFM]

The DME is bolted on the firewall, behind the carpet, in the rear trunk.

[Loren]

:welcome:

Your problem is not likely the DME (computer) but more likely a faulty coolant temp sensor on the expansion tank.

I would try a new sensor (about $23 US Retail) before a new DME (about $1525 US Retail plus programming).

[R0gerB]

:welcome:

Your problem is not likely the DME (computer) but more likely a faulty coolant temp sensor on the expansion tank.

I would try a new sensor (about $23 US Retail) before a new DME (about $1525 US Retail plus programming).

I replaced the coolant temp sensor that plugs into the block...is this a different sensor that you are talking about?

Thanks!

[R0gerB]

The DME is bolted on the firewall, behind the carpet, in the rear trunk.

Thanks for the help!! i have been tearing that car apart looking for it but didnt think to look there

[Loren]

:welcome:

Your problem is not likely the DME (computer) but more likely a faulty coolant temp sensor on the expansion tank.

I would try a new sensor (about $23 US Retail) before a new DME (about $1525 US Retail plus programming).

I replaced the coolant temp sensor that plugs into the block...is this a different sensor that you are talking about?

Thanks!

Yes, if the water temp gauge was flashing (or solid on) it it the coolant sensor.

[R0gerB]

yes the engine temp gauge does flash when the needle drops down to zero degrees.

i replaced the coolant temp sensor that screws into the block...is the sensor in the expansion tank a different sensor?

[Loren]

Yes.

[R0gerB]

is it located in the coolant tank? thanks for the help!

[Loren]

On the bottom outside of the tank.

[R0gerB]

Thanks for the help! it seemed like the wire harness was not fully into the computer, when i pushed on it, it clicked into place and also the sensor on the bottom of the coolant tank in the trunk was saturated as if when i had the system flushed fluid parshly corroded the sensor. after some cleaning and playing with wires everything seems to be working so far (fingers crossed)