Question : My second-hand Toyota Seg 1.6 (1994)
is performing well. But there are some minor problems.
1) The car has a low pick-up and struggles when driving through hilly
roads. Even the third gear is not effective. This happens even when the
air-con is off.
2) The rpm meter isn't stable. Sometimes during start, the engine rev is
3) The car sometimes jerks when driving between 20 and 40km/h. This
usually happens on the first, second, third gear. I tried using fuel
injection cleaner but there are no changes.
Answer : The problem with used cars is that quite often one does
not have the history of the car and getting to the bottom of the problem can
sometimes be hit-and-run. From the sound of it, you have a carburetion
problem and the best thing is to get it looked into by someone who is
familiar with fuel injection systems. You could be having problems with the
air mass sensor, injectors, feed pump, cable harness and even ignition
system. What the car needs is to be put on a harness/EFI checker to
eliminate all problems in that area, or else you would be spending a lot of
money trying all types of solutions.