Engine missing when it's cold outside

[tjnystrom]

Hi! I have a 2000 Toyota Camry V6. It has been missing out when cold for a while now. I changed the plugs with oem parts and the plug wires with oem wires. Ran the code and was told it was the #6 coil or injector. I changed both and it was still missing out. I took it to Toyota and they said it was probably the EGR position sensor. I changed that and it got a little better. I decided to change the EGR Valve but that did nothing so I cleaned the old one and put if back on. I am completely lost. Any ideas on what else it can be. I am tired of paying Toyota when they have not helped at all.

Thanks,

Tim from Indiana

[Mister_Perkins]

checked for vacuum leaks? When the engine gets warm it could be sealing the leak. (expansion). hook a vacuum gauge up on one of your vacuum lines with a T fitting and measure the amount of vacuum at idle. You can also spray some Carb cleaner, or TB cleaner around the hoses and see if the RPM Changes at all.

checked the ETC Sensor? Are your fans kicking on when you first start the car?

checked the TPS Sensor? Throttle position sensor not being able to detect the position of the throttle could throw off the Fuel mixture

What RPM is it idling at COLD?

Have you tried to run noid lights on the injectors to confirm that they are Pulsing correctly?