batmanfc

Just wondering if anyone could describe pretty well or have any pics of where the thermowax system hooks up? I need to check to see if mine is hooked up or not. I believe it isn't because there car doesn't crank well when cold.

FelixIsGod29X

iTrader: (50)

The car will crank when cold even with the thermowax disabled. I dont think that is your problem.

batmanfc

It cranks, but it takes several tries to do so. I thought the thermowax system helped with cold starts.

FelixIsGod29X

iTrader: (50)

It keeps the idle rasied a bit and as the car warms up the fast idle cam moves the thermowax and drops the idle. Im terrible at explaining things online.Its something along those lines. After the car is warmed up is it still hard to start? Once warm the thermowax isnt used. Only during cold/warming up.

The sensor behind the water pump(has a green connector on it) if that isnt plugged in then the car will have extremely hard start. Is this plug connected? I dont know why but im drawing a blank as what this sensor is called. I fail online haha

satch

iTrader: (1)

EDIT:

It's called the "water thermosensor" and has a G/W wire running to pin 2E of the ECU. With engine idling and hot it should read .3 to 1.0 volts. and approximately 2.4 volts when cold. This is an important component for cold starts.

FelixIsGod29X

iTrader: (50)

Thanks SATCH. I dont know why that didnt click in my head. Also to the OP, i see you made a few threads. Please try and keep all questions in one thread or do a search. ; )

satch

iTrader: (1)

There are so many sensors related to water/coolant temps it's easy to mix them up or forget their names. I just try to distinguish them by their location and what they are designed to do.

batmanfc

The car cranks perfect once warm. Just on cold starts. The water thermosensor is hooked up. I know there is also a sub zero cranking assist. Where exactly is that, and would that have anything to do with it?

satch

iTrader: (1)

Just because it is hooked up does not necessarily mean it is functioning properly.
Checking its voltage at the ECU will tell you where you stand.

The sub zero device is a non issue and does not work as it was intended to do and most folks have removed the unit to free up space and have one less thing to be bothered with.

batmanfc

Ok. I will check it for sure. What should the voltage read?
I wasn't sure. I knew I had seen it mentioned and didn't know if it could be a factor.

FelixIsGod29X

iTrader: (50)

+1 on the sub zero device. It is useless in 99.999% cases.

And yes just because its plugged in doesn't mean its working properly. Hell i have all the sensor's plugged in for my temp gauge but it has never worked. Went aftermarket anyways.

arghx

iTrader: (3)

The thermowax/fast idle system does help for cold starts. It's basically holding the gas pedal down a little bit for you. But it's not "necessary."

satch

iTrader: (1)

The info is in post #5 which was taken from the FSM.

batmanfc

Ok. Thanks guys. That helps quite a bit. I'll take a look at it as soon as the snow melts off here.