After noticing a few things with my EMS I would like to ensure that my stock coolant temp sensor is set up properly. I've thought all along that my car runs too hot but that was based on the readings that I have been getting from the EMS. I use the gaugetech display to monitor my reading so I'm seeing exactly what the EMS sees...

What I would like to see if at all possible is the sensor calibration table from someones setup. or, since its easier I'd really appreciate it if someone can just help me correct or verify the following:

Volts - Temp in deg. F
0 - 261
0.16 - 261
0.31 - 230
0.47 - 205
0.62 - 183
0.78 - 165
0.94 - 149
1.09 - 135
1.25 - 124
1.40 - 113
1.56 - 104
1.72 - 97
1.87 - 90
2.03 - 82
2.18 - 77
2.34 - 72
2.50 - 66
2.65 - 61
2.81 - 55
2.96 - 50
3.12 - 45
3.28 - 39
3.43 - 34
3.59 - 28
3.74 - 21
3.90 - 16
4.06 - 10
4.21 - 5
4.37 - 0
4.52 - -4
4.68 - -8
4.84 - -9
4.99 - -11

Or another option would be if you could just take a screenshot of the Coolant sensor graph and post it...

Whichever of the 3 options is easiest...

I'd REALLY appreciate it if someone could help out with this.

Oh and I also have the modifry ECT fix, so I want to make sure that this thing doesn't interfere with the sensor voltage being sent to the EMS at all... Since the lower the voltage, the higher the coolant temp, I want to make sure that the wiring of the ECT unit doesn't draw any voltage from the sensor reading, thereby showing the coolant temp as being higher than it actually is...

Thanks in advance...I really would appreciate any help

 

I believe this is what you're looking for

 

you have no idea how long i took researching this and typing up that post, and the answer was right there


Thanks though

 

I'm confused as to what this pertains to. If you have the Modifry fix, doesn't that solve the problem? Is this necessary to do in addition to the Modifry thing? Sorry for my ignorance, but I am about to buy the Modifry fix and I don't know the first thing about AEM software.
J

 

All the modifry fix does is make your stock dash coolant temp gauge work again since it won't work once the EMS is in.

What I was asking about was the actual temperature that the EMS shows. Since all a sensor in a car does is send voltage to the ECU or EMS, the ECU or EMS has to take that voltage and convert it to usable data. In this case that is the Engine coolant temperature.

My question pertained to how the EMS manipulated the voltage to show the temperature. And apparently the setting that AEM sends with the EMS shows the temperatures to be WAY higher than the temperature actually is, so I wanted to double check that. And apparently that is correct according to the other thread that was linked.

 

Is this the correct voltages needed to be put in the EMS so you know you are seeing the right engine temps on the laptop?

 

The voltages and temperatures I have posted are the ones that were on my EMS... the normal settings from AEM. Apprently these aren't correct according to the thread posted by John.

That thread has A LOT of reading but it is well worth it. It explains to you how Gary came up with his temps so it gives you some peace of mind about his readings. I have decided to use Gary's calibration... we'll see how it goes.

 

That was explained very clearly. Thanks very much. I guess I will have to get someone to help me change the settings on the EMS when the time comes.

 

It's pretty simple... let me know when you do if you need help

 

I'm not too worried about changing it I guess. I mean I see 205 F on my EMS but in reality the engine is at around 185 F.
So, with that said, leaving my fans coming on at 195 F at where my calibration settings are at now, the engine is really at around 175 F and that's just fine with me.