cooling fan problem (please see the bold font especially)

dudemaaan · 05-11-2008, 09:11 PM

ok i tested at my ecu and found that pin 3d is not grounding out at the ECU. the ecu still displays the temperature of the water on my datalogit. DO the fans use the same sensor or is it a different one? Im trying to narrow down if its my ECU or a thermo sensor that tells the ecu when to ground out. There is also mention of the powertrain module or something what does it do in all of this?

Chadwick · 05-11-2008, 09:50 PM

If your car has had the cooling TSB done, look for an extra grounding strap coming from the black box’s wiring harness behind the ECU. A lot of people fail to hook this up when they swap out the computer. Don't confuse it for the black and yellow wire that has a spade connector, which is a constant 12v wire.

Dan

05-11-2008, 09:11 PM	#1
dudemaaan Rotary Fanatic Join Date: Mar 2008 Location: Brenham, TX Posts: 335 Rep Power: 18	ok i tested at my ecu and found that pin 3d is not grounding out at the ECU. the ecu still displays the temperature of the water on my datalogit. DO the fans use the same sensor or is it a different one? Im trying to narrow down if its my ECU or a thermo sensor that tells the ecu when to ground out. There is also mention of the powertrain module or something what does it do in all of this? __________________ 500+ HP thanks to: Fast reacting IAT sensor thread! Mechanical Pre-turbo Water Injection Thread Dual Stock fuel pumps Thread T2 differential swap!

05-11-2008, 09:50 PM	#2
Chadwick Rotary Fanatic Join Date: Feb 2008 Location: Smyrna, TN, USA Posts: 239 Rep Power: 18	If your car has had the cooling TSB done, look for an extra grounding strap coming from the black box’s wiring harness behind the ECU. A lot of people fail to hook this up when they swap out the computer. Don't confuse it for the black and yellow wire that has a spade connector, which is a constant 12v wire. Dan __________________ 93 RX7 BB (Race Car) 93 RX7 SSM (Soon to be IBM and a daily driver) 05 Silverado Z71 08 Mini Cooper 80 LS RX7 (for sale)