some problems

[91redmr2turbo]

I have a 1991 mr2 turbo and I am having problems. 1st off my throttle sticks.2nd It idels rough sometimes and other times its fine. Lastly when I am driving around 2500 to 3000 rpm then I press the gas down my rpm go up slowly the backend shakes and there is this weird knocking noise. Can you guys help me please!!! Thanks

[JekylandHyde]

What mods do you have?

I would start with the basics:
Toyota cap/rotor/wires new air filter and new fuel filter.

[91redmr2turbo]

i have an apexi intake greddy exhaust and a greddy intercooler.Is it possible that the exhaust is the cause of the acceleration problem?

[JekylandHyde]

Your exhaust would not be causing any of that.

I would check all of your IC pipes ... make sure you do not have a leak somewhere. With the engine jumping around, it is common to pull an IC hose enough that it leaks.

What about your ignition pieces as I mentioned?
What date is painted on your wires?

[BlitzKeg]

A clogged cat can cause acceleration problems.
They get clogged due to excessivly rich a/f mix, miss fires and any unburnt fuel reaching your cat.
I'd check the cat just in case.

[JekylandHyde]

Good point BlitzKeg I forgot a lot of people hav cats. Hie GReddy exhaust would have eliminated the 2nd catr, but if he still has the OEM turbo he probably still has the primary cat in place.

[91redmr2turbo]

I can't even get the date off the wires.So I should check the cat.Check the ic and get Toyota cap/rotor/wires new air filter and new fuel filter. Do you think that is all it could possible be? Because one day I drove to work and it was fine and then as I left work it started to happen.

[JekylandHyde]

If it were me, I would:
1st check the IC hoses ~ that's free
2nd I would get new TOYOTA cap, rotor and wires and some NGK copper plugs (#6097) and see what happens there ... since you need these regular maintenance items anyway.
3. See where that gets you

[91redmr2turbo]

ok thanks ill keep posting