ka lost power

[ls1240]

ok so i have a 90 hatch with a sohc and not too long ago it started lagging and running rich i noticed one of my injectors was leaking i changed the seal and it did not help it has lost quite of bit power... when i start to accelerate ill be rolling and ill WOT and revs will go up but not a fast acceleration like ive had before and it sputters when i rev it i have to slowly apply gas pedal when i pull off or else it will stall and i really miss my ka's power even though its stock hahaha so if anyone can help please do someone told mee it could be a vaccum leak but idk how to find one....

[sx moneypit]

You can start by checking your fuel pressure to make sure it is within specs.You could have a MAF sensor problem or clogged catalytic converter.Check your secondary ignition also (plugs ,wires,cap,rotor etc.)

[ls1240]

Ok I will check but I forgot to mention this but when I first start my car in the mrning and the motor is still cold it runs fine does that rule anything out that you said?

[sx moneypit]

Ok I will check but I forgot to mention this but when I first start my car in the mrning and the motor is still cold it runs fine does that rule anything out that you said?

Possibly the secondary ignition,but as your car heats up it could affect everything.Got any codes ?

[ls1240]

Idk how to check for codes but I'm really thinking it's a vacuum leak just don't know how to look for one I wanna rule that out before I try anything else haha but how do u do it just take every line off and see if there's suction????

[ls1240]

i found the problem my fuel pressure regulater vaccum line was off i think it happened when i took the fuel rail and injectors to change injector seals i didnt know there was a vaccum on it because when i took it off it fell so i didnt remember a line on it hahaha