stock93

I have searched and can't find a thread that goes over how to clean your EFI components. I have a rare surging idle and would like to just get everything cleaned up or replaced. I have rebuilt the engine with new injectors and was hoping someone could throw up a list of things to check or clean and how. I think some have mentioned carb cleaner to find leaks?

myyota

Its common for the upper intake and throttle body on a 22RE to collect a lot of sludge because of the EGR valve. The best way to clean them is to remove the throttle body and upper intake and clean them both. If the upper intake is real bad it can take 3 - 4 cans of carb cleaner to get it clean.

When cleaning the throttle body don`t get the carb cleaner into the TPS, it can damage it. It would also be a good idea to test the TPS to see if its good and properly adjusted.
Another thing to check is the AFM (air flow Meter) to see if its in spec. How old is the 02 sensor ?. If its original or has more than 50 thousand miles on it, its bad and need to be replaced. Get a Denso 02 sensor, DO NOT use a Bosch 02 sensor, they don`t work in toyotas.

You can use carb cleaner or propane to check for vacuum leaks.