temp sensor

[944Turbo]

anyone happen to have the part number for the temp sensor with the blue plug for a turbo. Think mind has failed which might explain my rich running. Noticed the temp always reads cold when running the piggy back software. Thanks tony

 

[Diver944]

This might help (it might not) When mine failed on the S2 the replacement was 028 013 0026 Trouble is I can't even find that number on PET to see if it is different for the Turbo [&:]

 

[rcsalmons]

Not sure on the part no but just bought one from Promax for £17 - £10 cheaper than OPC and they keep them in stock. Rich

 

[rcsalmons]

Found it 944 606 125 00 but please check.

 

[944Turbo]

Thanks

 

[SimonP]

Tony I have one, give me a call... Paul That number is a Bosch part no.

 

[egan1]

DME temp sensor is 944.606.125.00. You may not have a problem. The SMT6 engine temp sensor (pin 11) is only grounded according to my piggyback installation instructions. It seems there is no connection to the DME temp sensor (pin 13) unless you have a non-standard install. Egan

 

[Diver944]

ORIGINAL: SimonP Paul That number is a Bosch part no.

Ah that explains it [&:] Anyone know if it is the same part on the Turbo and S2? Tony, I take it you now have your wideband and piggyback connected? How is the tuning going, have you got a flat 11.8 AFR on full boost yet?

 

[944Turbo]

Hi Paul, no not yet, working at liverpool airport and needed the trailer, so only driven it once since the dyno day. Interesting Egan, will check that again, pretty sure it has a problem anyway it was running very rich even to the point of misfiring when hot on boost, and when the pb first went in did a quick setup with Paul when warm which looked slightly lean on the dyno, it then wouldnt start when cold until I richened it up again. Does you temp readout on the PC indicate anything? Thanks Simon will give you a call over the weekend, Tony

 

[Diver944]

ORIGINAL: 944Turbo Does you temp readout on the PC indicate anything?

I don't think it does but I'm not totally sure. I'll plug my laptop into the piggyback tomorrow and see if it does.

 

[egan1]

Tony Finally installed my piggyback yesterday, and have been playing around with recording a logfile. I now need to log my Innovate AFRs in the SMT6 so I can start tuning. My engine temp readout on the laptop display is 0. What value are you getting? Egan

 

[Diver944]

OK I had a play yesterday and have learn't a little bit [&:] Initially my engine temperature was not displayed up the left hand side of the Vitesse Piggyback window, but Eng Temp V was. Using the 'setup display' button in the bottom left corner you can choose which parameters are on display so I selected Engine Temp as well as Eng Temp V. This brought it on to the display but it just read 127 constantly Next I went into 'sensor calibration' in the top right corner and it has a range of 16 user definable temperatures depending on what voltage is read. Default was set to 4.31 volts is equal to 0 degrees and 0.39 volts is equal to 120 degrees with 14 voltage steps in between. If the sensor is actually connected up as part of the default installation, then the next step is to work out what voltage equals what temperature? Time to look in the workshop manual I think

 

[944Turbo]

thanks for the feedback mine was reading zero as well. the sensor has a high resistance when cold and i think simon said this reduces as it warms. Have checked mine cold and it was 3.6 k ohms not checked it warm yet. Tony in a hotel bar in cyprus halfway thru a 24 hour trip. wifi on my n95 allowing me to keep an eye on you lot

 

[Diver944]

I found the following in some old emails from John at Vittesse. It seems the sensor is wired to ground as a default but you can make the PB display it by making a simple wiring change: With the PB, you can read the Aeng_temp (the wire is connected to chassis ground now). If you read the EngTemp, you can alter fueling only when cold. (The AengTemp column can be used. The values are multiplied by the values in the Analog screen). Final Analog Mod = Fuel Zero Calibration + (Value in Analog Map * Value in Aeng_temp column). These might help you. Aeng Temp - PB #11 Green/Yellow DME #13 NTC-II Once you connect the wiring (You are just tapping into NTC-II, not cutting it). You will have to configure the PB to understand it. Go to sensor Calibration in PB.

 

[SimonP]

Try this... [link=http://www.bosch-motorsport.de/pdf/sensors/temperature/NTC_M12.pdf]http://www.bosch-motorsport.de/pdf/sensors/temperature/NTC_M12.pdf[/link] Its a data sheet on the Bosch 0 280 130 026