Cold start problem

does it at least start later as the day pass?
when the problem start
when you changed the stuff you said?

Could your IAC valve dirty? If the mechanics werent toyota they might not even know about it. clean it the first chance you get, its easy and could fix the problem -

http://www.toyotanation.com/forum/t157470.html

try cleaning your TB
might not be the prob but im sure would help

Muddassir said:

My 92 camry doesn't start if the outside temperature is less then -15 centigrade. The things I got done from the mechanics after that are

1. Full tuning includes spark plugs, rotor and stuff..
2. Changed fuel pump.
3. Changed timing belt and water pump.

The mechanics could not reach to the root of the problem. Any suggestions?

Click to expand...

Hope they fix you up after paying for all that & no results? Fuelpump?- Why if OK warm this was BS.
Timing belt also BS
The temperature sensor which causes the mixture to be enrichened for start & cold engine maybe to blame . It can be tested without being removed with a multimeter. This would be the kind of problem that comes on instantly when the sender fails Good Luck- maybe try a real mechanic

Muddassir said:

My 92 camry doesn't start if the outside temperature is less then -15 centigrade. The things I got done from the mechanics after that are

1. Full tuning includes spark plugs, rotor and stuff..
2. Changed fuel pump.
3. Changed timing belt and water pump.

The mechanics could not reach to the root of the problem. Any suggestions?

Click to expand...

The next time it fails under those conditions, spray some starting fluid into the intake for the air filter. If it starts up then dies, you likely have a fuel problem. My guess would be water caught in the fuel filter and freezing up. You might try replacing the filter and using a can of Dry Gas with each fill-up for a while.