Can anybody please tell me if my ECU is automatic or manual

Hondata model coverage & ECU application questions.
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vtec it
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Can anybody please tell me if my ECU is automatic or manual

Post by vtec it »

Can anybody please tell me if my ECU ia automatic or manual. The serial # is: 37820-p30-900
471-106135 ASJ Thank you very much
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ECU

Post by Hondata »

Manual. Automatic ECUs have a 5 in the second to last digit of the part number. e.g. P28-A52 is auto, P28-A02 is manual.
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vtec it
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Post by vtec it »

So it is manual. Strange,I'm geting code 19(Automatic Transmission Lock Up Control Solenoid Valve malfunction) Any thoughts on what is going on with this ECU?Thanks.
98turboteg
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me too

Post by 98turboteg »

I've been searching for the same question's answer, anyone?
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climo
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Post by climo »

Either a automatic or manual trans ECU will work right? I have access to an automatic but I thought I needed a manual for it to work properly.
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ce
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Post by ce »

Remember you can change an ECU from manual to automatic and vice versa..Just by changing one resistor .It's in the Hondata manuals and also on the web *cough*ZDyne*cough*..hehe..Don't know if that'll get edited :D
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Post by DaX »

When I send my P28 off to be socketed, can/will Hondata also convert it from manual to automatic?

Also...in the installation manual I see that for OBD-1 ECU's, to convert from automatic to manual it says, "Between the ROM and the side of the ECU case are a number of jumper resistors labelled with RP. Remove RP17 and install a jumper across RP18." Well, I'm looking into my P28-A52 right now and there is no jumper in RP17 and there's already one in RP18. VERY strange, as I'm fairly certain I am the first to ever open the case on this ECU.
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Post by OBD1 Kenobi »

I have been getting a code 19. I have a P30-941. Is that automatic? If so, I am looking for RP18. Where is it? On the daughter board, there is an R18. I am doubtful that is it as I understood the DB was for the knock sensor.

Also, I have been getting the code 20- electronic load detector. I have a Canadian-spec car that does not employ the JDM/USDM ELD. Can I program that out or hook something up to D16, I believe it is, to make the ECU think an ELD is there?
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QUICKSILVER RACING
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Post by QUICKSILVER RACING »

I think JDM auto ECUs have 9 in their second to the last number. Ive seen at least 6 of them 900,901 and even an N51.
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Post by pills_PMD »

to distinguish auto/manual:

i borrowed this from a friend

The last 3 will be....


North American model


(Letter)(Number)(Number)

The letter can be A, C or L

The first number will be either 0 or 5. 0=manual; 5=automatic

The last number is the firmware revision. 0, 1 or 2


Other than North America model

(Letter)(Number)(Number)

The letter can be J, G or E

The first number will be either 0 or 5. 0=manual; 5=automatic

The last number is the firmware revision. 0, 1, 2, 3 or 4

OR

(Number)(Number)(Number)

The first number will be either 0 or 9. 0=manual; 9=automatic

The second number will usually be a 0

The third number is the firmware revision. 0 or 1 will be here.


Examples:

USDM P30 manual transmission - 37820-P30-A02
USDM P30 auto transmission - 37820-P30-A51


EURO P30 (shortbox) manual transmission - 37820-P30-G00
JDM P30 (shortbox) auto transmission - 37820-P30-901
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