Morning what causes a Toyota hilux 1rz overcharging and damaging battery

It's possible that the issue with your Toyota Hilux is related to a problem with the fuel or ignition system. If the engine is idling fine but has issues when driving, there may be a problem with the fuel pump, fuel filter, or fuel injectors. It's also possible that there is an issue with the spark plugs, ignition coils, or ignition control module. Another potential cause could be a problem with the transmission, such as low fluid or a failing clutch.
It's recommended to have the vehicle checked by a qualified mechanic who can diagnose and fix the issue. They will be able to perform a thorough inspection and test the various components of the fuel, ignition, and transmission systems to identify the root cause of the problem.

run the fault codes
possible EVAP venting problem not allowing the pump to maintain fuel pressure

running the fault codes will probably reveal that it is an accelerator position sensor or a throttle position motor / sensor problem

I take help from online websites that have this service like helping in repair some like reliable- store have instant help.. others are a bit slow which I don't prefer... rest is up to u.. U can also get free manuals

Excellent answer... short & spot on...
(except YOU didn't mention "OIL CONSUMPTION")

toyota hilux 2kd d4d... Not getting a lot of domestic... (USA)
DIESEL information... here (sorry).

From Bill Boyd here in 1994"

Toyota hilux pick up D4D has hard start in the morning but ok after the...

Wheel lugs? Spark plugs? Water pump bolts? I suggest you buy a cheap shop manual to get this and so much more.

Please read the causes of engine misfires here. A tip look for any vacuum hoses that may be disturbed and leaking.

how can i set a toyota 1rz engine on timing

Blowing blue smoke is burning oil which is an internal engine problem which can cause low compression.