issue with Ka24de

[clash_ion7]

^^^thats good to hear. but my car isn't having fuel issues anymore. my problem truly spawned from the MAF sensor. Its crazy because thats the last thing I thought to replace. this def fixes the 2500rpm limit. and it should fix weak idle as well. good thing on the fuel pump tho too

[chanklas]

Yeah my engine wouldn't rev past 4000rpm, so i attacked the fuel system. which was the last thing i did. I don't know why. But all my sensors and ignition and fuel components are all brand new. so the engine should last a lil longer now. So now eveyone who comes across either a 2500rpm limit its your MAF sensor or 4000rpm limit its your fuel system. Hope it helps alot of people out now.

[85-720-z24]

I would look into checking all the small things before you go and tie up a lot of money and tme into replacing other stuff...
small things that are often overlooked: wiring harness connectors not fully push in together, lose wires, vacum lines could also have an affect... it can not run correctly due that it can not sense the corrct pressures created by the motor and will throw off more than u would think.... I have been bite in the A$$ a many of a time due to the fact that they are just cracked, not broken, but just cracked enough to leak vacum...