Join Date: Oct 2001
Location: Kissimmee Florida. USA
Here is the skinny. I decided to get an obd2 code reader. The day I went to get one, I noticed The car would turn over (start) As if there was too much compression. My clock would reset to 1:00 at times. Trying to start the car sometimes the voltage meter would not show a full charge. I decided to do an electrical check first. I started the car and checked the voltage at the battery. I got 14 vdc. I shut the car off and read the voltage. 11 volts and the car started fine. So, I started the car several time with the AC on. The car idled up to 3000RPM's. I shut the car down and rechecked the voltage. 10 vdc. I had one of my employees check the voltage as I started the car. It dropped below 8 vdc. I replaced the battery. The problem stopped. It runs fine now. New problem. You see nothing goes as planned for me. I can't use my radio. I have to go to a dealer to set the code for it. I forgot my code. That's ok, I drive too fast to hear it anyway. Thanks all that replied. I hope this will help someone else in the future.
<BLOCKQUOTE>quote:</font><HR>Originally posted by cavemate:
The Idle Air Control valve, or IAC controls the idle. All it is is a motor with pintle the at contracts and extends varying the amount of air that bypasses the throttle plate (which is closed at idle). when cold, the pintle in contracted to open the passage fully. This allows a lot of ait into the engine. The Mass Airflow Sensor(MAF) or Manafold Absolute Pressure sensor(MAP)..not sure which one your car uses, but serve the same purpose, senses the amount of air flowing entering the engine. The ECU or (computer) Uses the info form the MAF, or MAP and determines the amount of fuel to be delivered...knowing this, you may have a faulty IAC valve, A fauly MAF or MAP that is sending wrong info to computer, or a faulty computer (not very likly, but possible) First thing to do is to determine wether the computer has a stored code. This will make diagnosis much easier.So..all I can offer, since I cant actually see the car is that you find a shop that can determine if there are any codes in the system...Not much help, I know. there are simply too many possibilities to pinpoint the cause.<HR></BLOCKQUOTE>