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View Full Version : KA24DE nan not give above 20%~ throttle or car bogs / loses power


M374llic4
04-27-2014, 12:51 PM
Hello all,
I am having a strange issue. It is a 95 s14 with only intake and exhaust on it. Cat starts up and everything just fine, but when I go to accelerate, if I give it any more then about 20% throttle it just seems to stop there and bog / buck kind of. If I let it back out and slooolllyyy give it more gas, it will go faster, and I can give it more gas, but if I were to say step on it to try and get out in traffic, or pass someone, it just cant be done. I can get up to full speed, it just takes a while of slowly giving it more and more gas.

The strange part is when I once put seafoam through it via the throttle body method, while I was trying to run it hard to clear out the seafoam, it ran perfect and was able to accelerate just find, but then after all the foam was cleared out, it went back to its sluggish self (that was even after cap / rotor/plug replacement) .

I cant even out accelerate grandmas driving 4cyl church going cars.

Any Ideas?

**Edit, on deceleration it backfires / pops a s*** ton if that helps any as well.**

OnTheChip
04-28-2014, 02:36 PM
Sounds like its starving for fuel. Replace fuel filter? Check fuel pressure?

M374llic4
04-28-2014, 07:34 PM
Will replace filter tomorrow. How do you go about checking the actual pressure? Do I have to rent a tool or something?

Cheesemounger
05-04-2014, 05:01 PM
My car does the same thing I have a 93 ka in mine and even after spark plugs ,wires,cap,rotor , valve cover gasket it's still the same . I'm pretty sure it has to do with the timing. Was going to get it checked today but I think my chain guide snapped and is now floating around in the engine :(