99 camry low/rough fast idle
Hi I have a 99 camry 175k miles which has been idling low/rough (625rpm in drive). The cold fast idle has also been lower than usual. In extremely cold weather, the car starts almost as if its flooded and the idle doesn't kick up faster than 1200rpm...summer time is a little better, it jumps to about 1700rpm, but doesn't stay, it immediately drops back to 1200rpm and gradually decreases to 600's as the engine warms up.
I've noticed this happening since I had a failed injector and radiator replaced. The car runs excellent, but at stop lights the car idles a little low/rough and it bothers me because I know its not the way it used to be.
Also, I don't know if this is related but when engine is cold, I notice a ticking sound coming from the exhaust manifold on startup...I changed the exhaust manifold gaskets, but no help.
So far I have replaced the following:
Idle Air Control Valve
4 brand new OEM Injectors
Intake Air Temp Sensor
Engine Coolant Temp Sensor
Cleaned throttle body
Tested EGR valve, it holds vaccuum
NGK Spark Plugs
OEM Ignition wires
ECU was replaced
I would really appreciate anyone's help with this as it is very frustrating spending all this money on parts that don't seem the be the problem. Thank you.
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