i just bouht a 90 crx si.. it had a blown d16a6 i replaced it with tha same kind of motor..it had a pwo ecu in it..wat i heard is tha its a ef-9 b16a 8k rpm red line vtec ecu..which im waitin to replace it with a regular obd0 pm6 ecu cuz i dont want 8k red line and dont have a vtec head..i have tha car runnin with a greddy exhaust and a aem intake and that *********er wastes hella gas!! could it be tha ecu? ****ed up cat? tha intake? and i could smell gas through tha exhaust..smells rich as ****!.can u guys could help me out with some ideas on what's wrong with my crx and on how to fix it thanx!

 

pardon my french

 

you need to get the right ecu for that motor or it wont run right

 

yea im lookin for one..hopefully thats its it

 

First of all get the proper ECU, the PM6, and THEN see if it's still using a ton of gas. That PW0 ECU is undoubtedly going to cause a rich condition, which in turn will likely foul your spark plugs (causing less spark), can damage your 02 sensor, and even ruin your cat converter if its running pig rich.

Besides the obvious fuel/timing parameters being different you are undoubtedly running in "limp mode" on that PW0 ECU because it is lacking various inputs from your D16A6 such as VTEC solenoid/pressure switch, knock sensor, etc. Limp mode will run even richer than usual to try and keep the engine safe from detonation, etc. so on an already-rich condition it's even more rich.

Cliffnotes:

- Get the right ECU

- Swap spark plugs, check other tune items such as valve adjustment, cap, rotor, wires, air filter, etc.

- THEN tell us if its still running rich

 

yeah ecu will help alot i was runnin a ps9 on my sohc wasted sooo mich gas swap a pm6 and now sbits coo

 

indeed, swap that ecu and tell us if that helps with it. I have a ecu if you havent found one yet.

 

fa sho.

it has new everything..

plus the ****in car has 2 plugs comin out of the ecu which dont connect to anythin on the d16a6 , not sure which pins yet but i think it had a b swapped in it before.

and i just have the o2 sensor hangin, i know that might be another reason but i cant find where to connect it to. the cars wiring was all rigged up the ***. it doesnt have the stock fuse box under the hood. it has a different one.

where can i connect the o2 sensor if i cant find the original connection plug?

 

well the pw0 ecu b16a uses 2 o2 sensors and ur a6 uses one should be the one wire white plug where the tranny and block meet on the top

 

should put a b series back in it lol . ecu for sure b16 has diff fuel maps then a sohc

 

sounds like u got fuct on this deal

 

hey i fixed it, not sure what it was.i stilll have the same ecu (PWO). i changed the resistor box, plugged a lil vaccum line on the firewall that the inside of my hood said needed to be plugged. and it runs better tha it did before and it does waste all the gas that i used to waste. it doesnt smoke all nasty nor smell rich as ****.

2 days ago i tried my buddys pm6 ecu and it would burn out the ecu fuse..

????????

why?

think it even burned the ecu out!!! lol

 

Sum ting wong!

 

take it to honda dealer!

 

 

No you didn't:

Nevermind helping you - you don't listen.

 

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