I am from Guyana, South America, and my truck is a 99 Toyota Hilux with the 3rz engine. My ONLY problem with this truck is that is get me about 13mpg
I have checked all the electronics, valve clearances, air filter replaced, fuel filter replaced, o2 sensor changed, and the list goes on. Everything is OK.
The base timing is at 5 degrees and at idle is between 7-13 degrees.
I'm here because I am absolutely clueless as to where to look now. I have exhausted all possible avenues that I could come up with.
If you guys have any ideas I would greatly appreciate it.
The only idea I have left involves some gasoline and a match.