power loss intervals. What can i do??

[live4mymr2]

I have a 91' mr2 N/A, and its been having some power problems.
I'm not sure what it is but i'll do my best to explain:

1.It occationally drops rpm down to 500 and dies.
2. jerks if I go slow. @15 mph or slower.(this wounldn't be a problem if there were no speeding tickets in this world)
3.even while keeping a decent speed it occationally loses power than kicks back in again.

I took apart the carborator and cleaned that out and it seemed to help for a while but its still doing it. has anyone heard of this before? what can I do about it.

[boroEF]

injector/fuel rail/fuel regulator problem?
maybe check ur dizzy?
and um didnt aw11 come with 4age....therefore it doesnt have a carb?

[MRQtwinturbo]

Originally posted by boroEF
injector/fuel rail/fuel regulator problem?
maybe check ur dizzy?
and um didnt aw11 come with 4age....therefore it doesnt have a carb?

91 n/a arent aw11s......there are mk2 with the 5sfe motor....

[Tate]

Is this a constant thing? It always acts like this? Before I had did my swap, my 5sfe acted like this on two occasions: first was if the engine got wet from rain.. but I would imagine this isn't your problem.. The only other time I had a problem similiar was when I had a diode go bad in my alternator and the fluctuating increased voltage threw my ECU for a loop.

[FlaK]

My Celica's 5s-fe does something similar, and I, too, have wondered about it.

1. When the idle lowers and dies, is it after you have started the engine while it's still hot after a fairly long trip?

2./3. Is the engine cold? Are the revs somewhere in between 1K and 2K with sudden kidney pressure around 3K+?

If this describes your problem, I'd love to know how to fix it.

[live4mymr2]

it has this idle problem when starting cold, and after warming up. it even does it when i'm driving sometimes. Its pretty scary sometimes. Does anyone think a in depth tune up would help the problem? And is replacing the fuel injectors dificult? thank you for your replys