2000 Camry cold start issues

The way the newer systems work the engine spins at least a few turns while the computer checks everything for correct readings. In the old days it was "cool" to be able to reach in and "bump" the key and have the car start. It meant you had the car tuned perfectly. Now the vehicle computer will not turn fuel on until it is happy with readings. One trick you can try is turn key to full on position and let it sit for a second or two before turning key the rest of the way to crank. This allows the system a second to do it's checking without wasting power cranking. Had Nissan that was just like this. Just wait a few beats before turn to full crank. You can also listen for fuel pump whine in that few seconds, and then hopefully whine to stop when pressure hits full. If whine never stops fuel pump may be getting weak. If you can get access to higher end code reader you can also check for "pending" codes that may be showing up sometimes (holding start up) but then working (so engine finally fires).

replace your idle air control valve located back of the throttle body.

Is the check engine light on while you're cranking the engine?

Does the security light in the dash blink?
Thinking it's a pass code fault(ignition switch)
There is no chip in the key,the computer looks for the proper rotation of the switch,had the same thing happen,
Should be able to start it if you crank the engine for a few seconds,release the starter and DON"T turn the key off,wait 10 minutes,crank it again,should start.
If not do the procedure again(had to do it 3 times on mine)
This is the relearn procedure that also has to be run after the switch is replaced(with a new key also)

ITS ACTUALLY a cold start issue There are several things that few people know about starting cars in cold weather. 1. Check your battery to make sure it is not rusted, leaking, and has a charge 2. Jump start your battery with another car, even if you believe the battery is good, this often times will still start your car. 3. If your engine is cold, and you have an older car, ensure to get your fuel lines to the engine flushed or have fuel injection service performed 4. The engine tends to warp the same way wood does during the extreme cold, do not be afraid to continue trying to warm up the engine by constant cranks with it is cold out. Your not going to hurt the car, the worse that could happen is too much fuel will enter the carborator and cause flooding in the system to occur. Wait 20 minutes if this happens and start to crank again 5. Bad spark plugs are a major reason why many cars take a very long time to start 6. Please have your spark plugs removed and exchanged for new ones. Over time, spark plugs become fowled and prevent the car from starting even thou you hear cranking!!!

this could be a few things fuel pump getting weak or your alarm could of activated itself and it disables the fuel to the engine, I would try reseting the built in alarm system. first put the key in the ignition and turn on till all the lights come on and let it sit 10 minutes with the key on, then after the 10 minutes is over turn the key to the off position and wait 3 seconds and then try to start. if it starts which is possible because grand ams and olds aleros are bad for the security system locking up by them self. Hope this helps.

Mine did the same thing. Finally took it to the dealer and they replaced the crank sensor. No problems now, except $200 less money in my pocket.

sound like the alternator is going bad.that could be your cranking problem.if alternator dont keep battery charged.the battery will be too weak to crank truck.

This same problem just started happening to mine too. My mechanic cannot find the issue. I have to get my catyltic converter replaced this week and am not happy about it.
Just bought the car last Spring.
How long have you had yours?
Sarah