dsm's in obd2b

[2redstars]

is anyone running dsm injectors in an obd2b car? just curious, cuz i was using y8 injectors in my DX and it through code 45, put the y7 injectors back in and no more code. i'm putting together a turbo kit and need to know if its gonna be a problem.

[Honda4VW]

According to a few sources, the y8 injectors are rated for higher flow than the Y7. Thats where your code 45 comes from. I previously though this was incorrect, but thinking back to when I put my y8 engine with my y7 ecu running it, I got a code 45 too (fuel system too rich or lean) I don't know about DSM injectors though.

[oscarmayer]

actually any 96-2k integra, or civic or crv have the exact same injector (uds cars not jdm). they are all 240-245cc flow rated.

you need something to control the injectors and you need to install an injector resistor box from an older hoinda. liek the 91 civic or accords have. some 90-91 integras have them too. the dms injectors are low resistance. 92+ are high impedance so the resistor box allows you to run those injectors. you also need to have a reason to run those injectors. do you realise that's a crap load of fuel? i ran 440's with 14lbs of boost and 250 wheel power on my stock honda and i still have room on the injectors if needed.

[Honda4VW]

actually any 96-2k integra, or civic or crv have the exact same injector (uds cars not jdm). they are all 240-245cc flow rated.[


Umm... yeah, im going to have to go ahead and disagree with you there. Look around this site, you will find a post showing that 96-00 non-vtec injectors flow a different rate than vtec injectors of the same years. I believe it was 195 compared to 240.I can attest to this, because when intalling my Y8 injectors into my Y7, I got an error code 45, fuel system too rich or lean.

[2redstars]

yes, thats what i'm saying. i know how to use dsm injectors, i just want to know if obd2 cars will be ok with them? without throwing a code.

[oscarmayer]

Civic, If you contact honda directly and get a tech who knows they will inforum you that all 92-2k civic and integras are the same injector. (USD only) You might have gotten ahold of a jdm injector which some cam be 340cc if i remember correctly.

FYI, Why look around the site? I kow the info. you can also contact rceng.com and ask them yourself.

[Honda4VW]

I thought the same for a very long time.

[2redstars]

then wouldnt they be the same part number? they are not.

[Honda4VW]

then wouldnt they be the same part number? they are not.
I agree, why would they be different, they also have different color tips, blue and red.

[2redstars]

and also red and green :wink:

[oscarmayer]

actually if you take the same bold that fits a civic and the bolt for an integra, they are not the same part #. they can be the exact same bolt for the same part that fits both cars stock and be different. don't go by part numbers.

another example is the 96 civic and the 99 civic. the intake manifold gaskets are the EXACT same but if you go down to honda the part #'s are different. are the different parts? you tell me...

[oscarmayer]

her is a link to a flowed site's info

http://www.allmotorhonda.com/techpages/injector.htm

[2redstars]

that list is in general tech section, but my ? is still unanswered, will dsm injctors work in a obd2 car? without throwing a code

[Honda4VW]

actually if you take the same bold that fits a civic and the bolt for an integra, they are not the same part #. they can be the exact same bolt for the same part that fits both cars stock and be different. don't go by part numbers.

another example is the 96 civic and the 99 civic. the intake manifold gaskets are the EXACT same but if you go down to honda the part #'s are different. are the different parts? you tell me...

You proceed with your Honda work based upon the fact that Y7 and Y8 injectors are not the same. It may never become an issue to you. However I am telling you that the injectors from a Y7 are of different flow rates than Y8 injectors. Don't believe all these lists of injector ratings shown on other "message boards".

If only I could find that discussion we had a while back regarding this particular issue!

[oscarmayer]

2redstars, not w/o something properly controlling them. like a hondata or the greddy emanage or some real decent unit. a lot of guys talk about the afc hack, but I personally can attest to 4 blown motors from guys I know who have tried this on their turbo cars. So i am totally against it. The local shop last yr repalced 12 honda motors due to the afc hack as well. it is not stable and does cause issues at times. was the problem.

[Rexinre]

If you think about it the AFC is not different then the E-manage!!! That is what everyone has been trying to tell you!

[oscarmayer]

the bas emanage yes, but add the ingition support, and boost retarding, and the it's a new ball game.

[2redstars]

one more time-is anyone using dsm injectors on an obd2 car? will it throw a CEL? i am asking because y8 injectors in a DX will throw code 45. and dsm's are alot bigger than y8's.

[Honda4VW]

Sorry about that 2redstars.....

You will throw a cell if you place DSM turbo injectors on a honda, even with a resisitor box. You need to, of course, have an engine/turbo setup that will use that fuel, and some kind of management to tune out hte excess fuel.

[oscarmayer]

yes they will throw a code unless you have something to properly control them and decrease fuel flow. also you will need a resistor box due to the later gondas are high resistance and those are low resistance injectors.

[2redstars]

ok, yes i know all of that, i forgot to mention i'm running a VAFC2, and even with the y8 injectors tuned down some i was throwing a CEL, so if i use the dsm injectors when i put my turbo setup on, how much will i have to go into the negatives for them to work right? i plan on going to get dyno tuned right after but its a 2 hour drive to get there.

[oscarmayer]

well are you boosted?

[2redstars]

no, still collecting pieces for the setup, this is one of the questions i need answered.

[ghettoturbo]

try somewhere around neg 40-45 imo, i ran decent at neg 42 if i remember right