Toyota Surf Exhaust Mods

[penetrator]

Well i got the exhaust modified in my 92 V6 surf - had the pipe that runs from the drivers side manifold to the passenger side manifold between the block and fire wall removed and a seperate pig tail put down into a Y join in the original pipe. Hasnt made a huge difference a little bit better in fuel economy and revs a bit quicker especially in first gear. I cut a bit more out of the original exhaust(which im going to have replaced with a 2.5inch pipe and a free flow muffler) and it seems to have a lot more grunt already so it should be sweet once it all fully done.

Anyway what i wanted to ask is can you get an EFI vehicle "tuned" ie get the timing and fuel mixture etc checked? I had an electrical fault fixed at a place in town and asked if they could check this but they said you dont need to in an EFI vehicle is that correct?

[DieselBoy]

So long as all the sensors that supply info to the ECU are opperating correctly, and the plugs and leads are in good shape, it should look after its self??