DIY Honda ECU Repairs- P30 P08 P27

[Localhost]

hi E-tech

do u know where to get STA413A and TA8903sn.. just to standby in case..something bad happen..hehe :)

 

[E-Tech]

hi etech..

ecu evo2364 no cut off for aircond fan.. on ignition the fan already switched on. no burns and copper damage inside ecu.. any ideas what to check?

Try Ic109... Tq

---------- Post added at 04:51 PM ---------- 6 hour anti-bump limit - Previous post was at 04:49 PM ----------

hi E-tech

do u know where to get STA413A and TA8903sn.. just to standby in case..something bad happen..hehe :)

If for your car meaning 1 pc of those parts, I think I can
supplier you.... :-).

 

[zamiex]

thanx

i already change ic 105.. will try cahnging ic109.. tq

 

[disket9356]

Hi Etech,

Gd job for posting and sharing...Iv readng ur post and others quite sometime, learning something that MOST MALAYSIAN KEDEKUT to share. Most chipper (as i call them...hehe..the 1 makes money chipping ur ecu) refuse to share knowledge as they gonna BANKRAP if they help 1 or 2 people who wish to DIY. Neeehh...leave them alone, gonna need ur advice.

I'm working on P27 ecu 02D01720-1500 non vtech. Crack open the casing already, went shopping a few elect part

1. can i use HD74HC373P for IC4
2. can i use 50v caps instead of 35v
3. can i use 1N4001 1A 50v for D11
4. can i use C144 ESK for Q26
5. Problem getting IC14 515 High Side Switch, can i get from u
6. i notice levin818 posting about O2 sensor (all P27 ecu )

So many can r...Thanks..hehe

 

[E-Tech]

Hi Etech,

Gd job for posting and sharing...Iv readng ur post and others quite sometime, learning something that MOST MALAYSIAN KEDEKUT to share. Most chipper (as i call them...hehe..the 1 makes money chipping ur ecu) refuse to share knowledge as they gonna BANKRAP if they help 1 or 2 people who wish to DIY. Neeehh...leave them alone, gonna need ur advice.

I'm working on P27 ecu 02D01720-1500 non vtech. Crack open the casing already, went shopping a few elect part

1. can i use HD74HC373P for IC4
2. can i use 50v caps instead of 35v
3. can i use 1N4001 1A 50v for D11
4. can i use C144 ESK for Q26
5. Problem getting IC14 515 High Side Switch, can i get from u
6. i notice levin818 posting about O2 sensor (all P27 ecu )

So many can r...Thanks..hehe

Hi....
Yes
Yes
Yes
Yes
Yes
Tell u when u hv the same problem

The P27 u hv is auto or manual?
P27-???

 

[zamiex]

thanx

i already change ic 105.. will try cahnging ic109.. tq

already change ic 109.. still no luck.. aircond fan still on when key on acc...

 

[disket9356]

thanks, its P27-T00...manual ecu

r those 1/8w 5% and 1/4w 5% resistor interchangable?

 

[E-Tech]

thanks, its P27-T00...manual ecu

r those 1/8w 5% and 1/4w 5% resistor interchangable?

1/4= quarter watt or 0.25 watt
1/8= 0.125 watt...
So No.... But in this application in the ecu I say ok.

---------- Post added at 09:16 AM ---------- 6 hour anti-bump limit - Previous post was at 09:15 AM ----------

already change ic 109.. still no luck.. aircond fan still on when key on acc...

You really sure it is the ecu????

 

[zamiex]

1/4= quarter watt or 0.25 watt
1/8= 0.125 watt...
So No.... But in this application in the ecu I say ok.

---------- Post added at 09:16 AM ---------- 6 hour anti-bump limit - Previous post was at 09:15 AM ----------



You really sure it is the ecu????

yup.. already swap with other ecu and aircond fan not on.. also this ecu put in other car aircond fan on when key on acc.. so confirm ecu.. any ideas?

 

[EF_Hatch]

Hi, ive been researching info like this, i have right now a problem with a P06 ecu chipped, yesterday i tested it and.. with J1 cutted (as stock one) and works good, but appear after some seconds cel, ok i noticed iacv is buzzing, then i key off and key on (engine off) again and solid cel, disconnect battery, again, key on (engine off) and not cel, after some seconds cel appears again and iacv is buzzing again. i dont know what to check, tried to chip this ecu right and i was thinking that i dit everything clean and good but idk what's problem.

today after to clean some rest of flux, with J1 cutted not more cel, good but when i bypass it a solid cel and iavc is again crazy, hope you can help me out please!! i trill try to check everything again, i was sure that was a clean welds but looks like it didnt.

Thanks.

 

[E-Tech]

Hatch... Fuel pump relay or iacv buzzing?
All caps changed?
Using a known good chip?

 

[EF_Hatch]

Thanks for your reply, it's iacv, here is a video as first time i had that problem.

https://www.youtube.com/watch?v=srqNzhrpR5k

first time i get iacv problem with J10 cutted, after clean ecu some rest of flux, any cel with J10 cutted (ecu stock) but when i jump again J10 get cel and iacv begin to buzzing.

here some pics of solders.

ive seen worses solders than mine and works, that's why this is getting me crazy!

http://i48.tinypic.com/ngwyop.jpg

http://i46.tinypic.com/1427uqx.jpg

http://i47.tinypic.com/34pe33p.jpg

what i noticed is in the up side, pad holes arent filled completely, not sure if that will be affect since in the bottom side are good soldered..

http://i49.tinypic.com/zyeg6o.jpg

http://i50.tinypic.com/mj5hg.jpg

I replaced C14 when i chipped ecu, addred Q26 (ECU has Q30 already), and added everything for convert P06 to vtec .

Thanks!

 

[E-Tech]

Hatch.... J10?
Pls post a top side picture.
And btw your are missing a resistor... So it goes into
Limp mode with J1... And most likely cannot
Rev pass 4000rpm. Correct?

 

[EF_Hatch]

Hi, sorry, i meant J1. i installed a switch there. i will post some pictures of the top side tonight. everything is installed "correctly", i means all resistors,etc but i dont know if problem is with any solder..

thanks for your help!!.

 

[EF_Hatch]

Sorry for the delay, today tried to resolder but same problem, iacv is buzzing, i dont know what part of chipping has to do with iacv, can you help me please.

Here some picturs before i resolder everything again..

http://i49.tinypic.com/2lo6qua.jpg

http://i46.tinypic.com/33d81s7.jpg

http://i47.tinypic.com/2rmw1ef.jpg

http://i48.tinypic.com/2dj3s7m.jpg

http://i50.tinypic.com/icra6a.jpg

http://i45.tinypic.com/wl2m3d.jpg

http://i49.tinypic.com/2kemut.jpg

http://i49.tinypic.com/2zdrx2f.jpg

http://i49.tinypic.com/2v9ssk8.jpg

http://i47.tinypic.com/10d5ume.jpg

Thanks in advanced!

---------- Post added at 11:29 PM ---------- 6 hour anti-bump limit - Previous post was at 11:12 PM ----------

btw, upload a map (tried many maps , checksum removed,etc) and it's solid cel, engine start up fine, about 2.000rpm or so when it's cold , air fuel is not bad but solid cel is still there of course..

 

[E-Tech]

Have a look at this....

 

[EF_Hatch]

i have seen that image already but didnt understand it :(.

 

[levin818]

Hello Hatch, may i know where did you get those modification info from? It seems you have miss out few components that will cause CEL.
Also, when this ECU is still original (before you add in the components to support VTEC), does it give hissing sound at the IACV?

 

[EF_Hatch]

Hello Hatch, may i know where did you get those modification info from? It seems you have miss out few components that will cause CEL.
Also, when this ECU is still original (before you add in the components to support VTEC), does it give hissing sound at the IACV?

Hi, thanks for your reply. Here is a How-to.

1720 ECU Vtec Conversion kit instructions

besides i got a specific chipping kit for this board 1720.

everything is in the right position (+/-).

when i cut J1, ecu back to stock, no sound, not cel, it's as stock one.

 

[E-Tech]

Have you driven the car?
Can rev pass 4000?
Do vtec function?