SR4 ECU: 37820-P27-T00 vs T01

[levin818]

Dear Honda sifu-sifu sekalian,
I have a little question here hope someone can enlighten me.

Can SR4's ECU, 37820-P27-T00 be repace with 37820-P27-T01?
What kind of mod is necessary if i run T00 in T01's wiring?

You helping hand is very much appreciated!

 

[E-Tech]

Dear Honda sifu-sifu sekalian,
I have a little question here hope someone can enlighten me.

Can SR4's ECU, 37820-P27-T00 be repace with 37820-P27-T01?
What kind of mod is necessary if i run T00 in T01's wiring?

You helping hand is very much appreciated!

Bro..
Normally for hondas, we only mention the center grp of digits...
In your case P27... so it should be the same spec...(except manual & auto).
Can be modified to prevent Check light for auto...

Any special reason to replace it???

For the below P27-T00 was for a manual transmission car...

Pls link if need repair....
http://www.zerotohundred.com/newforums/honda/315717-ecu-p27-civic-eg-1-6-sohc-repair-report.html

 

[AD_EG]

the sifu of Honda ECU have spoken

 

[E-Tech]

the sifu of Honda ECU have spoken

Bro...
on your pc....go to your temporary internet files....
you might just be lucky and find someone's picture there....

at explorer's window-->tools--> internet option-->browsing history-->setting-->view files, then
sort the file by type.... check the "jpg" files....

good luck.....

 

[levin818]

Hi E-Tech,
TQVM for your reply!

I also get the info from a blog saying that T01 (manual) is a later version from T00.
So i think (?), they can be inter-changeble.
But i have better re-confirm T01's pin-out before proceed for "plug and play".

As you guess, T00 is gone case. So will be replace by T01 ;)

 

[E-Tech]

Bro...
Welcome.. and fyi... honda pin out are all the same.
In your case... you are having OBD1, so all obd1 have the same pinout...
e.g p27, p28. p08, p30 all can plug & play... differents are got vtec onot, knock board onot..
Just plug and play and if no CEL then 100% okay....

How bad is the T00 ecu? If you dun have any plans for it pls donate to me...
Tq

 

[levin818]

Thats amazing, Honda has same pin-out for OBD1 ECU.
For Toyota, all has its own pin-out.

Btw, there are many people doing ECU repair in zth.
Myself too, has done more that 700's (Toyota, Honda, Mitsubishi, etc)
That T00 already injected with new life, and ready to run better than before.

 

[E-Tech]

Ok tat good.
Maybe now u can help me out in return.
I still hv 1 Honda P30 sitting on my
worktable...wit CEL41...cannot find the
cause of da problem yet.. U got clue?
tq.

 

[zhaf_b16]

Bro...
on your pc....go to your temporary internet files....
you might just be lucky and find someone's picture there....

at explorer's window-->tools--> internet option-->browsing history-->setting-->view files, then
sort the file by type.... check the "jpg" files....

good luck.....

here also u guys talk about the issue aa? haiyaa. hahhahahaha.

 

[E-Tech]

 

[AD_EG]

 

[E-Tech]

can find not?

 

[AD_EG]

cant la bro...i using mozilla firefox...cant seem to get the avatar pic

 

[levin818]

Ok tat good.
Maybe now u can help me out in return.
I still hv 1 Honda P30 sitting on my
worktable...wit CEL41...cannot find the
cause of da problem yet.. U got clue?
tq.

Code 41 - O2 heater
Possible area:
1) O2 not connected / wiring broken.
2) ECU problem / QM3 short circuit.
Please f/back after check...

 

[E-Tech]

Bro
sensor checked- ok
qm3- change new twiced

still cannot...
U repaired ant ecu wit this symptom before?
Tq

 

[levin818]

Haha... tough one
Code 41 appears when IC8 of the ECU didn't read the heater's impedance.
Try check Q15 (SMD) , which send the impedance info to IC8.

Never have this symptom ECU before. But have one P27 with CEL always on and can't shows any error codes at all. Dead brain maybe....

 

[E-Tech]

Bro
q15 also changed oledi..
Gonnalah tis p30...
Any other ideas...to trick it so no cel?
Tq

 

[levin818]

Bro
q15 also changed oledi..
Gonnalah tis p30...
Any other ideas...to trick it so no cel?
Tq

The main chip or others might be kill by the surge current already.
(especially if you have a burnt hole under the cap 220/35)
Unless you can replace all the chip that connected directly to B+, otherwise the only way is to bid farewell to this ECU lor

 

[freeman1314]

Wah...u all really scaring me with this ECU burned up stuff la.
Never knew ECU are so fragile.

 

[E-Tech]

After 10years... Anything and everything will
happen to da ecu....

Levin818,
but this ecu caps all good and no burn or leak
just the cel41.....

how to trick ic2? Tq...

 

[levin818]

Hi freeman,
ECU built until '90 is very tough, still running well till today.
ECU from '91~'96 (or up to '00) was using new material that has shorter life spand (intentionally or unintentionally?). Periodically "technical check-up" is recomended to avoid the unwanted hassel.

E-tech,
Personally, i do not recomend to trick the ECU. ECU is categorize as life threathening item. Each and every process that relates with ECU need to be handle with extreme care. Tricking the ECU is just like removing the ABS or seatbelt from your car. It put one's life in danger! Each and every item that use in the car is engineered to its highest reliability level to safe guard human life. We should not simply alter it unless we know that the replacement item has meet the safety requirement. When it comes to repairing the ECU, one shall involve the knowledge of parts sourcing, manufacturing, QA, reliability, safety etc. It is not just replacing the cap.
So you know what to do with that ECU

 

[E-Tech]

Oklah.... Scrap da ecu and ask customer to
get another ecu...
Tq bro...
Btw do u know da part number of q15?
Body marked as L30... Last effort...
Previous changed part was taken from another
ecu.....tq.

 

[levin818]

Happy 2010! Sorry for late response.
Some of the parts that use in the ECU has its own marking (customization).
So it is impossible to retrieve its datasheet from the internet.
However, for your case to check whether its Q15 failure or not, you can jump its collector and emitter together --> the CEL41 should be disappear. Otherwise its the main chips failure.

P/S: base on the circuit's config, Q15 should be a digital transistor from Rohm.

 

[AD_EG]

wah both very experienced Sifu's. Glad to know we have such experts here..at least we feel safe hahaha

 

[E-Tech]

Levin...
Happy New Year to you all...2010.
It is a year of many spoilted ecu..
These 2 days, I hv done 4... 2/ day...

Btw I got the part number already.
Tonite will download the specs and by Tuesday I should be
able to source for the smt component..
Tq....