I have a b18a1 swap with b16 tranny when I get into higher rpms like over 3000 my car will start to 'chop up' and just isn't getting the power it use to. I am running throw gas a lot faster than usual most likely from having to floor it to get a lil bit of power out of it to get up to speed. I was burning a lil rich always but now it seems like it just don't even burn it. I got a video of me taking in 1st thru 5th and you can see how I can't get it close to 7000. I have no clue what's wrong with it but I need some help fellas please and thank you
<<<< link to my YouTube video lemme no if y'all got any ideas

 

Check for misfires. You're distributor could be cutting out. The ignitor could be going bad and causing your car to not ignite all the fuel. At idle, unplug a spark plug wire and listen for the idle to drop. If the idle doesn't drop, that cylinder is misfiring.

Someone can probably give you better advice. Check your timing though. Hopefully it is simple. Is that a CEL?

 

Oh ya it was throwing code 10 and 43 but now it just a 10

 

Oh also I changed my spark plugs 2 weeks ago and they are fouled out again

 

Sounds like a spark issue. Check your distributor wires and the distributor. They may not be sparking enough to ignite all the fuel. That or your injectors are leaking and too much fuel is getting through. Can you check the fuel pressure at all? Did you check for misfires?

 

Just took to a tuner place and the dude messed with it a lil will rev higher but not the same power and will break up still. How would I check the dizzy? The wires aren't to old and is there any way to check for misfires or bad injectors?

 

what ecu are you using? when did you notice this happening? and fouled spark plugs? how so?

43 Fuel supply system
10 IAT - intake air temperature sensor

 

I don't remember which one it is but its a vtec ecu and I got an ls idk how bad that matters I drove it for almost 2 months before it did it just one day when I started it up and like they are black and look no good like that were when I changed them 2 weeks ago. What is an iat I asked at Napa what it'd cost to get one and didn't no what I was talking about

 

And thanks for the replys fellas

 

10- Intake air temp sensor is located on the intake. It's a white plug. They come loose.

43- Fuel supply system. That's probably your issue. Replace the O2 possibly. I have heard that fixes it usually.

 

Im not throwing code 43 anymore just one soild light (a 10 right?) But could that still mean my o2 is bad? And would you happen to no where it is located on this ls?