Temperature sensor?

[Blades]

Could I temporarily wire a temp sensor to the eio? If so, what kind would I need? I want to try to log IAT sensor temps against another temp sensor for a sanity check. Also, will the fps (40) of my wideband be cut in half since the EIO polls data at 40... or is it 40 for both inputs?

BTW: Its not too too big of a deal.. Although I would like the accuracy of having them logged side by side. I could always use something like this... http://www.audon.co.uk/th1.html

or this.. http://www.microdaq.com/fourier/micr...usb_logger.php <- pretty damn cool..

[EC_Tune]

IIRC the EIO gets polled more rapidly than the serial data and then EIO data is averaged before displaying it.

[rrmccabe]

I am on the same quest as Blades.

The IAT circuit is already 5 volts so I am guessing I need a resistor to pull down the output side of IAT.

Anyone done this and know a decent value of resistor to use?

Thanks,

Rich

[EC_Tune]

The PCM uses a linearization table but you can probably generate one based on the temp sensor data given by the MFG.

[rrmccabe]

The PCM uses a linearization table but you can probably generate one based on the temp sensor data given by the MFG.

At this point I am not concerned about reading actual temps (voltage will do).

I just want to see the rise and fall times of the IAT in two different locations and the reaction time of one that claims to be "10x faster"

Thanks

[svede1212]

At this point I am not concerned about reading actual temps (voltage will do).

I just want to see the rise and fall times of the IAT in two different locations and the reaction time of one that claims to be "10x faster"

Thanks

you must be referring to the Vector kit for $100. just get yourself an Omega 44005 thermistor and wire it into your stock sensor wires. costs $23 including shipping and yes it does respond a lot faster

[rrmccabe]

Yea but not having any luck. I am in truck right now...

I have approximatly 2.5 volts to channel 3 and channel four of the HPT box. I can read it with a voltmeter. But cant seem to get it to plot on the software???


I am under user defined but reading online trying to figure out how to set it up for channel 1,2,3 or 4.

Dont remember going through this with wideband.

[rrmccabe]

Not sure I am doing this right.

I have approximatly 2.5 volts at Inputs 3 and 4 on my HPT. As I said I can verify this to pin 5 ground on HPT. I am testing IATs and at this point I dont care about actually outputs but more how the sensors react to flow.

When driving around I can see the sensors change from 2.5 volts cruising up to 2.68 volts sitting and letting IATs climb IF I use my DVM. But watching the numbers on HPT there is hardly any difference between the two sensors and they dont move. Must be a resolution thing.

What do I need to change to get a larger swing in readings?

Thanks