Lude Generation

I have an problem, i had h22a5 engine and it was chiped, and i changed engine to h22a (jdm) and i didnt rechip it and i have problem, on h22a5 when vtec kicks in it felt like a rocket but now on this h22a when vtec kicks in i dont realy feel much power what could be a problem? Maybe i just need to rechip it?

Because sound changes when vtec goes on but it dont work like previous engine

Ecu is chiped with p28, injectors are 345cc , i think stock distrubutor

Vtec kicks in at 4500 rpm same like previous engine , maybe difference is that the mehanics conected ecu to OBC2 (5gens) cause i have wires for OBC1 (4gen) and could it cause that problem?

I have no idea what year h22a is, but it was from 4gen

Dunno if i you can understand me

its probably becuase no chip.

injectors and dizzy shouldnt make a difference if you only swapped the engine.

plus i know that engine and i know its got it where it counts.

that engine was originally in a J reg 4th gen and then i put it in my 5th gen.

maybe you should change the spark plugs,

i had iridium in them, check the gaps are right

i thought if you use a jdm h22a you need the p13 ecu as the motor has a knock sensor so maybe vtec isnt coming on at all

no, you need the knock sensor if you use the jdm ecu otherwise the jdm engine will plug into the edm plugs and that sensor is off.

no vtec? i thought he said he has it. he can hear it.

can you rev above 6500? if so then you got vtec crossover.

I can rew it to 8,5k

Spark plugs are alright ihadthem in my h22a5

I hear vtec but i dont feel power from it

Bump

It might not actually be a problem - my understanding is that if things are setup right, your crossover should be fairly smooth. You say you hear it, does the car pull harder?

Maybe just a bit, with h22a5 it was like second breath, it was pulling much better

So maybe i need to rechip it since engine is different?