Toyota Hilux Surf RZN185 Idles Erratically

2000 Toyota Hilux Surf RZN185W Engine Model 3RZ-FE

Situation
The engine did not run smoothly at an idle.

Cause
Faulty Air flow Meter

Maintenance
Diagnosis noticed that card 31 it was faulty of the air flow meter.
Then I took off it and cleaned. but It worked worse than befor.
After that I judged that the air flow meter was faulty.
The engine run smoothly after I changed a new air flow meter.

Toyota Hilux Surf KZN130 Strange Shifting

1994 Toyota Hilux Surf KZN130W Automatic Transmission
Engine model 1KZ

Situation
It couldn't shift gears in second and fourth.

Cause
Changed ECU , There were leaks from the condenser in the ECU.

Maintenance

Speed sensor and accel sensor were properly.

Fourth generating power didn't deliver from ECU.

I changed used ECU.