It's weird cause it says I am over heating but motor top hose to rad is hot and lower one is cold,,, thermostat bad? maybe

 

Code 6 - Coolant Temperature Sensor (ECT)
Helps determine the Pulse Width of the injectors at start-up. When this sensor starts acting-up, the engine will get hard to start, on "warm/hot starts". The wax pellet inside the sensor has gotton lazy. Sending bogus signals to the ECU, causing it to flood the engine.

When cold, it should read 2.5-4.5 volts. Also, check the IAT sensor for the same voltage, they should read close to the same. When full warmed should read .5-.6 volts. You can use a resistor with a 330 ohm 1/2 watt spec, or one from Radio Shack part# 271-1113. Start the engine and let it warm up, then kill the engine. Put the resistor in the wire connector on the harness. Start the engine, if problem goes away then replace the sensor. Use this only for temporay testing, it will cause other performance issues. Meaning the ECU will think the engine is always warmed up, when it's not.

This sensor is also known to cause hot and cold starting problems.

Temp F Volts
0 4.70
10 4.50
20 4.29
30 4.10
40 3.86
50 3.61
60 3.35
70 3.08
80 2.81
90 2.50
100 2.26

When the engine is hot, the sensor is telling the ECU that the engine is cold. Flooding occurs, due too a improper injector pulse width. Unplug the sensor if you need to start the car in a hurry. The ECU will throw a code and go into limp mode, however you will be able to drive it.

 

I am able to start it and drive it just says I am in the red!!! so I dont want to warp my head, so I will test it thanks...

 

Sounds like the thermo is stuck closed also.

 

thats what I was thinking I was going to replace that and see if that cures the prob...

 

Could the sensor be bad but show accurate coolant temps and not throw any codes? Just make the engine run rich?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Reelizmpro &raquo;</TD></TR><TR><TD CLASS="quote">Could the sensor be bad but show accurate coolant temps and not throw any codes? Just make the engine run rich? </TD></TR></TABLE>

Two different codes. Actually when the temp gauge sensor goes bad, no code will ever be thrown.

The ect sensor sends info back to the ecu, that is all. The gauge has nothing to do with it.

 

I think i have same problem too, but the engine remains Cold and the Guage shows, full hot,?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by salman &raquo;</TD></TR><TR><TD CLASS="quote">I think i have same problem too, but the engine remains Cold and the Guage shows, full hot,?</TD></TR></TABLE>

Are you throwing a code 6 ?