timing

[omegarex]

i searched toyotanation for timing, but no one had the answer. the question is, if your timing is off wouldnt there be misfiring? or is that not necesarily the case

[DFBonnett]

Not necessarily. Too much advance and you can get pinging. Too retarded and the car is sluggish. I suppose if it was significantly off in either direction you could have what could be called a misfire. What is the nature of the problem?

[Mike Gerber]

It's exactly as DFBonnett said.

Mike

[omegarex]

my car feels sluggish at acceleration

[DFBonnett]

A vehicle in need of a basic tune-up would feel similarly. What is the age/condition of the plugs, cap, wires, and rotor?

[omegarex]

1993 with 125,000 miles on it, changed the plugs, wires, oil, and filters on it last month. I dont know how to check the rotor if its good or not.

[DFBonnett]

Take the cap off. Inspect the inside for corrosion on the contacts. Inspect the rotor for corrosion. If they've never been changed, it due.

[NewRacer]

Wait a minute, I thought the 1MZ-FE V6 engine uses coil packs. So, there shouldn't be any cap and rotor, right? I don't see any on mine?

[DFBonnett]

He said it's a '93. That would make the V6 a 3VZ-FE. Unless it's different than our '93 V6
3VZ-FE, there is a cap and rotor.