Hello

I have a Chevrolet Lacetti 1.8 Automatic Petrol(ZF 4HP16).

I bought the car in May with 44905 miles on it and did a immediate service on it and transmission service.

When they scanned the car(OBDII), the only issue was Throttle Position Sensor, low voltage.

I changed the sensor in June and since had no problems until about two weeks ago, some times it will idle high when starting up then, after driving, it will go or it will start fine, then the rest of the day it will idle high at random then go back to normal. The highest it idled at 1700 RPM in Park. I have also cleaned the throttle body aswell.

Also, sometime the ABS light comes on, should I just clean the sensors as the brakes on it are brand new.

The car runs perfectly fine otherwise and starts straight away.

Any advice is appreciated, thanks.

Lawrence