Rebuilt old 4Runner, feels like it’s missing some HP

I bought a 1994 5speed 4Runner with the old (I think second generation) v6 VZ-E engine. Replaced the heads and head gaskets, exhaust manifolds, timing belt water pump thermostat radiator fuel injectors spark plugs and wires and distributor cap and rotor but the new rotor broke and i put my old one back on. Also I think a few sensors that I broke, can’t remember which 2 on the back of the intake manifold. Checked and replaced air and fuel lines as needed.

I am aware that the engine is not a powerful engine, and it’s my first truck and first manual as well. However I had it before the heads blew, as I was the one that blew them because I was an automotive virgin at the time and didn’t know my radiator had cracked. SO I am pretty positive I’m missing out on some HP because it doesn’t feel as stout.

More Notes: I have attempted to change the fuel filter several times to no avail, that thing is hella froze on there. I had an experienced mechanic help me with the timing belt and distributor cap and we’ve adjusted it, so this is fine. I do get some backfire, just a little sometimes, not sure if that matters.

Edit: I had the factory manual pulled up on my iPad for the process, so my question assumes everything I did was done to specs. I used OEM grade or better all around except with my radiator I guess.

  • Gunk_Olgidar@alien.topBEnglish
    1·
    10 months ago

    OBD = on board diagnostics. Prior to 1996 there was no standard and each car MFR had their own systems.

    For your 4runner, there is a pair of pins you can jumper with a paperclip and you can count the flashing lights to determine the code(s), if any.

    Google is your friend.

    If all of this is still above your head after an hour or two of internet study, then go have a chat with your mechanic. They will know what to do.