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Temperature correction
ChrisLeary - 2/8/11 at 08:02 AM

Morning all,

With help from Matt_gsxr I've been tuning my 2.0l zetec silvertop, its on gsxr throttle bodies with megasquirt 1/V3.

I'm using tuner studio but we had a problem with the temperature readings from the standard ford temperature sensors. They're not calibrated.

Does anyone have the files or advice on what to do next please? any help is fantastic.

Thanks in advance,

Chris

vinny1275 - 2/8/11 at 08:05 AM

You can either calibrate them with Easytherm (you'll need a thermometer, a multimeter, and cold & hot water), or replace the bias resistor on the board for the one for Ford sensors (it says what that value is in the documentation, I can't remember what it is though).

HTH


Vince

ChrisW - 2/8/11 at 09:07 AM

The values for the Ford sensors are listed in the Haynes manual for Mondeo. You then need to punch those into Easytherm and it'll generate new .inc files. Remember these have to go into the megasquirt itself AND into Megatune.

Chris

ChrisLeary - 2/8/11 at 09:16 AM

quote:
Originally posted by ChrisW
The values for the Ford sensors are listed in the Haynes manual for Mondeo. You then need to punch those into Easytherm and it'll generate new .inc files. Remember these have to go into the megasquirt itself AND into Megatune.

Chris


So I need to download megatune too? I've only got tuner studio at the minute. Also, where do I find the megasquirt software? I've bought the car, so do I have to wirte them to the ecu?

I'm confused.

Cheers,

Chris

coozer - 2/8/11 at 10:34 AM

I unscrewed the sensor out the thermo housing, plonkled me camping stove on the scuttle and set about boiling some water with the sensor and a thermometer in it, lappy connected, ignition on, fine tuned all the way and back down. Some ice round the sensor provided the +/- 0 value.

ChrisLeary - 2/8/11 at 10:48 AM

I've got the figures for the standard ford sensors, i managed to find them in a previous thread on here.

I've downloaded easytherm, I'm just not sure what to do next, I understand somewhere along the line that easytherm creates some files for me???

Cheers,

Chris

ChrisLeary - 2/8/11 at 09:17 PM

Any ideas anyone?

Cheers,

Chris.

ss1turbo - 4/8/11 at 07:35 PM

There is/was an easytherm guide, but i'd have just replaced the bias resistor.

As its not going to be an uncommon mod, there's bound to be someone with that Ford sensor file (may even be in the download section of the extraefi site - sure i've seen it somewhere).

BaileyPerformance - 5/8/11 at 10:07 PM

quote:
Originally posted by ChrisLeary
Morning all,

With help from Matt_gsxr I've been tuning my 2.0l zetec silvertop, its on gsxr throttle bodies with megasquirt 1/V3.

I'm using tuner studio but we had a problem with the temperature readings from the standard ford temperature sensors. They're not calibrated.

Does anyone have the files or advice on what to do next please? any help is fantastic.

Thanks in advance,

Chris


Hi, i would change the bias resistors and leave the correction values as standard, most ford sensors require a 27K resistor, one for the air temp and one for the water temp, R5 and R7 on a V3 MS