Hi, i just found new ecu for me, look like obd1, all connector same as obd1 ecu, there already oem eprom in the ecu. Just wonder if crome, uberdata or Bre can adjust the original map from the eprom. the ecu code is 37820-P0F-004

 

nope. it's ECU from Accord SiR CD6.

 

it obd1, just try to put P30-N51 virgin ecu on accord h22a cd6, car can start, but there check engine light and i not run the car, i will post again after checking error code and wiring, it is possible different wiring to ecu since it still obd1 engine?

 

Here the ecu POF-004, for sure it obd1. Today have difficult and uneasy swap ecu. Since i used P30-N51 OBD1 JDM small case, it not compatible with h22afinal map. I give me error code 3, and rev not pass 3500 RPM.

First swap : From P13-000 to P30-901 to H22a lude (Error code 13).
but it success with help and explanation from people in Honda-Tech.

Sec swap : From POF-004 to P30-N51 to H22a Accord sir cd6 (Error code 3).
not rev more then 3.5k idle bad. it used same basemap.

http://www.youtube.com/watch?v=nP6uFEEnJrM

For solution i double check for HC373 latch and SSt chip maybee bad chip or joint, but it absolute ok, because when i put the chip into P30-901 no check engine light on.

and to make sure my MAP sensor ok, i try put POF-004 ecu back, and start, no check engine light. Try disconnect MAP sensor and start, also no check engine light with POF-004 ecu.


it is P30-N51 have different circuit from other P30 ecu, since it have AYN code, and P30-901 ASJ - Y

 

Here the picture P30-N51 OBD1 Small Case Style

 

I try used P30-N01 B16a map to P30-N51 and export table H22aFinal.bin, got it work, no check light..it run good but no power on end top. After running for long time, the idle go bad. And i check the spark plug, there 2 white color and 2 black color. The black cannot used anymore

 

You need to have your car tuned. Also check out your injectors, it's not normal to have 2 black and 2 white spark plugs. You may have 2 injectors that aren't working properly.

 

Thank GhostAccord, i just check the injector function same like P30-901 thread you teach me, used screw driver and hear tick2, all injector look fine, also check injector resistance + resistor box value, all have same +- ohm value.

here i post basemap i used :

 

What injectors are you currently running and what were the Ohm values that you saw?

The H22finalbin that you are using is set for 240cc injectors and the stock injector battery offset for a P30 (240cc, high impedance injectors)

 

I used original accord sir cd6 h22a injector, each have 3.3 ohm +- and the resistor box have 6.5 ohm +-.

Hm im not expert and no one expert at my area in injector sizing or adjust advance futures injector battery offset. Reading more in this url

http://www.xenocron.com/install/CromeGuide.htm by XENOCRON

but i still need someone expert to explanation..

Are you have any h22a sir cd6 basemap that can used in p30? share or sell so i cant try it..

 

OK so you are using 330cc low impedance H22 injectors.

If I remember correctly there is a thread somewhere in the Engine management forum that I posted in that explains battery offsets and other injector tuning tools. I can't remember exactly where it is right now. If you search the EM&tuning section you should be able to find it.

Not sure if this map will be any better but you can give it a try. Remember this is only a base, you need to do some dyno tuning or at the very least a few hrs of wideband O2 street tuning. Do you have access to any tuning hardware?

 

Found it!

There is some info in this thread on initial setup and injector tools.

https://honda-tech.com/forums/showth...jector+battery

 

Wow thanks a lot i will try out the bin file you give, but i dont have any access tuning tools like dyno..just using emulator, datalogging tools and test street run innovate w02. (it is ok using PGMfi RTP)?




Thank for the url..i will play with injector tools today...yeah i got new knowledge from GhostAccord today thanks!
give me time to test the bin file, i will came here after testing..

 

Yeah! it work..little adjustment on cranking with fuel tools. And tune it with wideband to get correct af + datalogging street tune.. little rich but it run good.. Thanks to GhostAccord share your bin file.

 

If it is a little rich, you should let the engine come up to operating temps. (rad fan cycles twice). Then adjust the Individual fuel correction offset down from 40. I set it @ 40 for a rough starting position.

Click on "Tools/Fuel Multiplier/Advanced (tab)/Change the Individual fuel correction Offset field until you get a smooth idle and safe AFR.

 

Yes! it work GhostAccord, i following your step, but i try decrease 1 by 1 value to get all smooth idle and AFR take a lot of time for noob, thank man

Hey what car you drive? Accord?

 

No problem. Glad you got it to work

Right now I'm driving a 4wd Mazda Tribute. The Honda that I am working on is a 1996 (CD5) Ex Accord.

Here are a couple links to my build

My personal blog;
http://ghostaccord.blogspot.com/

My H-T Build thread;
https://honda-tech.com/forums/honda-accord-1990-2002-2/f22b2-itb-setup-1938405/

 

i have a pof they are rare but useless

 

Need more fuel adjustment on High Cam Table 5k - 10k. "Select Adjustment." "percentage adjustment (+ or - ) = 5. If not it too lean engine vibrate hard.