Hi all,
I have a 90 series 5VZFE Prado which erratically experiences rough idling (or misfiring). I have tried everything that may cause the problem as follows but still no luck:
- New spark plugs
- New spark plug wires
- New ignition coils (x3)
- New fuel filter
- New fuel pump
All parts used are OEM. I also had the injectors cleaned and all tested ok. I also poured two bottles of Toyota fuel injector cleaner as per the manufacturer's instructions.
Before experiencing the problem, I recently had the timing belt changed (as well as the tensioner bearings, water pump) and all of the belts (all OEM). All was running smoothly for about two months. The problem occurred after we went for a vacation from which we had not used the car for 5 weeks. The car would behave fine for 5 days then run rough for 2 days erratically.
Any suggestions/ideas?
I have a 90 series 5VZFE Prado which erratically experiences rough idling (or misfiring). I have tried everything that may cause the problem as follows but still no luck:
- New spark plugs
- New spark plug wires
- New ignition coils (x3)
- New fuel filter
- New fuel pump
All parts used are OEM. I also had the injectors cleaned and all tested ok. I also poured two bottles of Toyota fuel injector cleaner as per the manufacturer's instructions.
Before experiencing the problem, I recently had the timing belt changed (as well as the tensioner bearings, water pump) and all of the belts (all OEM). All was running smoothly for about two months. The problem occurred after we went for a vacation from which we had not used the car for 5 weeks. The car would behave fine for 5 days then run rough for 2 days erratically.
Any suggestions/ideas?