When starting cold , I have to twist on the throttle. it doesn't go into high idle anymore. think its the eng. temp censor or air intake temp censor.

006 Idle Speed Problems Idle Speed Wrong Do you have a professional type scan tool ? If not ,take it to a qualified repair shop .
007 Idle Speed Problems Scan Data for Idle

Those numbers appear to be in the normal range, possibly a bit high? Since adj are all computer controlled, I would suggest removing the air intake hose and inspecting the throttle body bore for "coking" of built up carbon, which is a common cause of idle maladies...

coolant temp sensor and intake air temp sensor would be the next to check.intake air temp sensor is in the air intake tunnel between TB air air box. when running is there a DTC? by disconnecting the coolant temp sensor you put the ecm values at default try that if it corrects your issue replace it.(it will turn your check engine light on but you can clear later by disconnecting battery)

High idle is usually caused by a vacume leak. First place to check is the cold air intake manifold. All hoses, throttle body, and sensors. Throttle Position(TPS), Mass Airflow(MAS), Idle Air Control Motor (valve) IAC. Controls Idle speed

A malfunctioning throttle system can cause both a high idle as well as an engine stall.

A dirty air intake or cracked air intake tube is often the culprit.

How to Fix an Engine High Idle in Under 15 Minutes

No The air temp sensor will not keep it from starting, if its bad or even unplugged the computer will see it as 32 degrees and all it will do is command more fuel (rich) to help start thinking its cold outside. even with this being the case it will still start, might not idle or run great but it will run...

Its most likely a vacuum leak or the throttle needs to be adjusted. Check that there is a small amount of play in the throttle cable between the bracket on the back of the intake manifold and throttle body. If there isn't, the throttle body may not be closing all the way.

Other possible causes:

The coolant temp. sensor is giving an incorrect reading. When the sensor reads a low coolant temp., like when you first start the car and the engine is cold, your idle will be high. As the engine warms up to operating temp (about 200 F) the idle speed will decrease. Idle speed should be around 750 rpm when the car is fully warmed (800-850rpms fully warmed with a/c on).

The idle air control motor may be stuck open.

Make sure the coolant temp. sensor is connected.

Bad coolant temp. sensor?

Coolant temp. sensor is ground out on the engine block?

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The ECU use the resistor value from the coolant temp. senor to determine the block temp.

If the value is out of range.....the ECU will "think" the motor is still cold and let it ran at high idle.

I will use a carburetor cleaner to clean out the throttle plate and intake.

Have you cleaned the throttle body plate and throat of any carbon/build up that may be restricting airflow ?

Here is the most common cause of surges and stalls and low idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake

try the throttle position sensor