Has anyone attemp to fit H22A 92-95 prelude 2.2 VTEC injectors with B16A1 OBD0 PW0 ECU??
sound like a cheap upgrade as I can find them in junk yard.

thanks for the input.


[Modified by evo, 1:04 AM 2/15/2003]

 

they should work
the only diff its that all honda inj are 240 cc and those prelude ones are 270cc....
as long as u used them right , they should work...
now.. i have used OBDI injectors in my OBDO electronics... and i fryied 2 of them... i got oBDO injectors and they are fine... i beleive those inyectors are going to be at least OBDI and arent really going to last very long....

 

Someone must have done this, please tell me what do I need?? Are thay plug & play??

 

If those H22A injectors are obd I and you are using obd 0 electronics, you'll end up frying the injectors.

 

Someone told me it'll work but need something call RESISTOR BOX.
What's that??

thanks

 

A resistor box is something that you would need to run low impedance injectors, such as those in multi-point non-obd (obd 0) vehicles. I don't think that would help w/ the running of the obd I injectors though.

 

Accually 92-96 Ludes and 90-?? accords still had a injector resistor box, even though OBD1. The lude H22A injectors from 92-96 flow 345cc and still low impediance peek hold injectors while 97-00 ludes were 290 and were saturated and no longer used the resistor box. You can also use eclipse 1gen injectors, they range from about 350 for the TSI and 450's for the GS-X and also low impediance and peek holds. heard the factory ECU with out a AFC will only idle upto 350 cc. just a few options for you


[Modified by zCivic, 6:09 PM 2/15/2003]

 

*sigh* most of obd-1 injectors are saturated, unlike most of obd-0 which are peak hold. The 92-95 prelude runs peak hold, hence the injector resistor box. They are rated at 310, but flow up to 345 as stated above. They are a good cheap upgrade to your fuel system, just remember to tune it otherwise you'll prolly end up running rich. So in end, yes you can just plug and play with these injectors on your obd-0 configuration.




[Modified by irev210, 3:38 AM 2/17/2003]

 

 

I am sure evo will be quite relieved to have this illustration, having waited 18 some years.

 

I honestly don't get how/why people keep doing this. Sign up for an account and 1st post is an answer to a 20 year old question. Why? LoL.

 

I didn't make a account just to comment on a 20 year old question I like all the knowledge that is on here the resistor box is for low impedance injectors you can tell if they are low impedance if you get a multimeter and check to see if they are low impedance is take the multimeter and put the positive probe and the negative probe on the injector plug it should read 1.9 to 2.0 for low impedance and 12 for high impedance use the resistor box if you use the h22a injectors if you don't you will fry the ECU

 

It is interesting to see how CRAPPY the information was in 2003... seven responses to OP's original questions were supposition or simply flat out wrong.

So here is the truth: USDM '93-95 H22A1 fuel injectors (or the JDM equivalent) are rated at 330cc @ 43.5 psi fuel pressure (345cc @ 50 psi fuel pressure). They use a USDM OBD-0 type fuel injector clip. They are "Peak-n-Hold" (low impedance - typically 2.4 to 2.8 OHM) fuel injectors and require the original OBD-0 style injector resistor box (or equivalent individual resistors) to operate properly and not damage the ECU running them. The resistor box typically adds 7.8 to 8.2 OHM of resistance for a total of approximately 10.5 to 11 OHM combined... and this reduces the voltage/heat load on the fuel injector drivers inside the ECU, allowing them to survive long term.

Tuning WILL BE REQUIRED. The ECU does not know that you installed larger fuel injectors, so this must be compensated for in the tune.

 

But sir, up to this point that's exactly what you've done.

 

I'm all for the correct info being out there. But I truly want to understand how you even found / picked this thread that hasn't had a response in 18.5 years as the one you wanted to respond to for your first post. You are not an anomaly...this happens frequently and I don't understand it, lol.