1996 LHS COld Start Problems

I have a 1996 LHS with 87000 miles. Last winter it began being difficult to start on mornings below 25 degrees F. Sometimes it will start if I hold the gas pedal down (cranking several times) and sometimes it won't. If it starts it acts like it is flooded for a few seconds. Once it has been started or or the temp reaches 30 degrees it runs and starts fine. I have replaced a defective oxygen sensor and the Mass air sensor without helping. There are no error codes listed. Any help would be appreciated.

Anyone? Same exact problem here!

You may want to try checking out the Air Intake Temperature Sensor located under the "3.5L 24Valve" intake manifold cover, the sensor screws into the top of one of the runners on the intake Manifold. Disconnect the harness connector from the sensor and using a Multimeter set to Ohms measure the resistance (the colder the sensor the greater the resistance will be) of the sensor, with the ambient temperature between 50 to 80 degrees the resistance should measure between 7,900 (7.9K) and 1,800 (1.8K) ohms (if it is too cold measuring it on the car, remove the sensor and take it in the house to warm it up to room temperature and check it after an hour or 2 to verify the reading), if the cold temperature resistance shows within the normal range, plug the connector back into the sensor and start the engine and warm it up to operating temperature. Then shut off the engine and remove the connector and measure the resistance again, it should be between 170 and 20 ohms (temp between 170 and 200 degrees), if any of those resistance readings hot or cold are outside the stated resistance range, replace the sensor. If the readings are within the normal resistance range, switch the multimeter to DC Volts and with the ignition switched on (engine not running) disonnect the sensor again and measure the voltage across the 2 contacts of the conector and make sure there is exactly 5 volts being supplied to the sensor, if the voltage is wrong then you may have a wiring problem or a bad PCM.

Hopefully that helps, good luck.