Hi,
I`m new in the forum. Searched for "Temp.Sensor" and found this thread.
We did an installation of the 2D system at a Porsche 933 twin-turbo engine with KKK24/26 Turbochargers and 540 BHB w/o WI system.
After we installed the system we some problems at the point of activation of the water-jet. Something like stucking accures.
We installed the water nozzle directly opposite of the temp-sensor inside of the intercooler approx. 15 cm in front of the butterfly. We think, that the spray on the temp-sensor will be the reason for this behavior. The A/F mixture is to rich for the reason of the "goiing more rich and ign. advance effect" of the ECU.
For better investigation of this problem we will install a complete Datalogging/AFR Displaying unit in next days. Also we want to install a second temp-sensor in the intake manifold after the throttle-body. So we can compare the readings of the original sensor (which affect the ECU injection signal ! ) with the real intake temperature of the air.
I think, that we need to measure the real intake temperature of the air at the relevant input signal sensor. Richard, you are right ! The closer the waternozzle to the temp sensor the more the readings will go down. The sensor is directly placed in the water/air stream and it could be possible that due to a condensation effect of the water the readings are not realistic. Fact is, that the injection time is going up and that means that the ignition behavior of the A/F mixture is dropping so that some sort of stucking is possible.
Next week we will do the same installtion at a Porsche 996 twin-turbo.
Will keep you informed !
rgds
Thomas
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