Did anyone happen to catch my previous question regarding the ECT? I am interested as to if the thermostat is controlled by the PCM's reading of coolant temperatures or if it works on it's own.

 

the thermostat is controlled by a spring..

the fans are controlled by the ecu..

beers

 

Ok, let me re-phrase the question:

I understand the thermostat is controlled by the temperature of the coolant in the motor. What I am curious about is if the thermostat gets the temperature information from the coolant itself OR if it responds to sensor input from the coolant temperature sensor.

I have reason to believe my coolant sensor may be inaccurate but if the thermostat functions based on it's own temperature input and not that of the coolant sensor then even if I re-calibrate the coolant sensor it will produce incorrect temperature readouts.

 

as i stated. the spring is a mechanical device.. they tend to be very accurate.. and really rarely fail. but it can happen..

now the temp sensor, well what are you talking about? aftermarket, where is it mounted..

i find the obd11 port gives very accurate temps..

beers

 

it's not unheard of for a coolant temp sensor to fail. the way to check them is to remove them, put them in hot water at known temps and read the resistance with a multi-meter. or they should cost stuff all so just replace it.

 

I've had a few CTS fail on this car.
Two of them were due to the Int-X when I had it.

The thermostat is a purely mechanical device.

I am still waiting for the day when cars start to have electronically controlled thermostats.

 

Just finished reading this thread and thought i'd throw my 2 cents in regarding tuning. Since every car is different, the only way to get a completely accurate MAF calibration(or complete tune for that matter) is to do it yourself. While MM's service is very usefull for those that do not want to mess with it, those same individuals often get frustrated when they don't get a perfect tune from him the first time. I myself was one of these people as an early adopter of the AP. I finally got over it and decided I would rather do it myself than wait on Jeff.

-Yambo

 

complete side step of the thread-

you know every time i see your name i completely mispronounce it in my head. It always sounds like "morris-a-kumbo"

i mean i can see its not spelled that way but i guess the first couple of times i saw it 4 years ago i read it wrong and it just stuck....


anyway that's all....

 

.....thought i'd throw my 2 cents in regarding tuning.

How about you stay on topic and/or start a new tuning thread?

This one's about coolant temps......

S

 

Sorry about that. I must have gotten confused when I saw the title of the thread was AccessTuner Race...Questions & Discussion.

 

Nope.

Huh?

 

I think Stealth's post was that sarcasm thing I have heard so much about.

 

Nah, he's probably drunk AGAIN.

 

Fixed.

 

BTW - I am also working on my way to drunk.... come on guys; join me!

 

That would be fun.
Though, I don't know if I'd want to add DUI to the massive speeding ticket possibilities that street tuning already risks.

 

Did you see my software video? I proved you can tune drunk...

 

Yup, Yup, I just checked - he's pissed!

ballvenie DoubleWood ftw

S

 

Who is pissed?

 

Tuning is not the problem. DRIVING is!

 

Ok you got me there........

 

stealth is pissed aka drunk

 

OT Question - any word on when Cobb is gonna fix the fuel information for their log files?

I need this information.

PS - 3 Rum and Diet Cokes in.... life is good.

 

Did COBB ever fix tracing for the MAF during ATR live tuning??

 

I should have added in a time quick enough to satisfy those who don't like to wait.