1999 toyota camry 4 cyl check engine light on code reader said egr valve

It is 1-3-4-2 with No 1 being at the timing belt and crank pulley end.

Try cleaning idle air control valve, and also maybe EGR.

P0773 TOYOTA - Shift Solenoid E Electrical Malfunctionhttp://engine-codes.com/p0773_toyota.htmlForum CodePossible causes- Faulty shift solenoid E valve
- Shift solenoid E valve harness or connectors
- Shift solenoid E valve circuit is open or shorted
- Low transmission fluid level
- Dirty transmission fluid

REPLACE THE EGR VALVE ASSEMBLY !

Code 71 : EGR system malfunction---need to have it checked out.

P0125- Engine not reaching operation temp quick enough. Possible problems:

• Insufficient warm up time
• Low engine coolant level
• Leaking or stuck open thermostat
• Faulty coolant temp sensor
• P1130- A/F Sensor Circuit Range/performance, Bank 1 Sensor 1

how I change the EGR valve assist switch for toyota camry 2000

Go to Autozone and have your current EGR Valve, removed from the car, tested and they will determine if it is defective. They tested 2 for me, and neither was a replace, just a clean and they worked great. If they don't have a brand that suits your wants, just test it, then buy the new somewhere else, no commitment to buy.
The most common problem with these EGR valves is they get plugged up from carbon build up. Best way to test it is with a little hand held vacuum pump. Hook it up to the EGR valve and with the engine running at idle and squeeze the vacc pump handle a couple times to open the EGR valve. That should kill the engine. If it dosent, the EGR valve is probably plugged up. At that point you'll have to take it off and clean the carbon out. Even if you have your mechanic check into it, it shouldnt be that expensive to remove it and clean it out or replace it.

Good Luck and hope this helps: Oh and I think theres two EGR.. check the one on the bottom of the engine to. I am not sure but i think there are two EGR valves on your camery.  

There is a VSV (vacuum switching valve) , usually mounted on the back side of engine block, under the intake manifold, as well as the map sensor, that can also cause that code if one or the other is faulty. It takes some pretty detailed troubleshooting to confirm this in some cases, so if that's not in your line of work, you may have to have it properly diagnosed, or take a 50/50 shot at which one first.

Not difficult at all to service the EGR Valve using a #12 mm socket wrench it is a five minutes job. However the VSV is another history and very difficult to be reached unless you have an elevator After the engine begin stalling I double checked the EGR which was completely carbonized. I cleaned it and also replaced IAC checked VSV and all sensors, but the engine follows stalling. Now I am looking for the Charcoal Canister which I simply can't find where it is located, then I will check the vacuum lines and the transmission sensors, but I have heard that EGR despite cleaned can keep bringing troubles. By the way, anyone has ever heard where in the car is installed the charcoal canister