I have a honda del sol. i just swapped a b16a2 into it.
at first it started realy bad. finaly ive got it running and took it for a spin.
it starts better now but not good enough. when de engine is cold and i accelerate between 1000 and 2000 rpm there are no problems. but when i do it when it become's a little bit hotter it starting to stutter when i give alot of gas.
doesnt matter in witch gear i am. just between 1000 and 2000 rmp it stutters when i give a lot of gas. and above the 2000 rpm it drives just like it should be.

any help??
im kinda lost what to do.

 

Jeez. This has got to be one of the most routine swaps ever done. You didn't say what you have already done to troubleshoot the problem. Did you start with checking ignition and mechanical timing?

 

i timed the engine. I vented the cooling system. and replaced de map sensor. i cleaned de iavc i tightend the fit. i tried 2 different trottle boddy's. i tried to run whitout o2 sensor doenst work. i have no check engine light or anything. i opend my ecu and it is stock. not chipped or anything. it runs al in obd1. i have an p30 ecu connected so that should be fine i gues. it is only between 1000 and 2000 rpm i have trouble. and starting the engine is a littlebit slow and stuttering. it doesnt start nice. it starts like it doenst want to start if you know what i mean. it feels like i dont have any power los. and everything else works just fine

 

Did you calibrate the TPS?

 

i dont know how to. i saw on youtube that you need to tightend it and so i did.
not tot tight. i turned it around till it couldnt go any further and then just a little bit back

 

What about ur catalytic converter? If it's clogged it will run like chit and won't be able to get out of it own way... First thing u would notice is the car getting really loud through the intake. U can also check the cat with an IR thermometer. A working cat should be hotter after the car due to the reaction between the platinum and gasses. If it's hotter on the engine side of the cat it's toast. Had the same thing happen to me on a couple cars I built and ran myself silly try to figure it out.

 

i dont have an cat anymore. i have an test pipe in replacement for it.
when the engine started in the begining after the swap. there where alots of black smoke and bangs from the exhaust. the engine was very instable. and after i took it for a spin it was gone. maybe it has something to do with it?

 

Don't know what video you watched but that's not how to calibrate a TPS. And I'm not sure you and I are talking about the same thing.

 

i watched it from eric the car guy.
and the tps is the little cilinder shaped thing directly underneath you throttle boddy right?

 

oh i see it now. tps is a sensor. yeah i was talking about that orther thing xD
no i didnt adjust the tps. i dont know how neither

 

Warm the car up and unplug the oxygen sensor connector and drive it and see if the issue goes away.

 

ive found the solution!

it sounds realy strange. but after i changed my spark plugs the problem was gone. i looked at my old spark plugs. and the gap distances where right. there was nothing to so on the outside why it wouldnt work properly.

 

you might also want to check the coil. when it gets old it has hard starts and bad spark when its hot

try a new coil and see if it runs better also.
Im not sure but I think b16a2 requires platinum plugs or something like that. someone might have put wrong heat rating plugs or used boschschs plugs instead of ngk.