ok i blew a piston ring on my non vtec h23 94 prelude si. so i decided while im buying a new engine why the hell not put a h22a in it. well i did and when i got it back it had some serious timing problem it seemed. i had srd (superior racing development) do the wiring harness for me because it was cheaper than buying a new one. it would sound like a gocart in low rpms if i stepped on it and it would jerk and hesitate after 3000 rpm, also it would put a check engine light on after high revs that would read o2 sensor but i bought new o2's and it still ran bad. i put the old ecu in and it ran fine. i figured fried ecu...swapped it and it did the same damn problem. idk what to say what are possibilities please

 

the "runs fine on old ecu but **** on p13" - for me - was the shops stupid oversight of using the OLD injectors (the ones from the h23a, which have a different flow rate)... actually i don't think it was an oversight - the f'ers were trying trying to rip me off, but i caught them at there own game cuz i'm S.M.R.T! (well that and the lack of vtec, and the fact that when i pulled back the carpet the ecu said p14 on it!)



in any case, if it's bogging at anything above idle, see if you can borrow someone's obd1 h22a injectors and give it a go. good luck

 

yah but if that was the problem, which is a possibility, wouldnt the check engine light come on

 

I had no cell, with the p13 BUT with h23a injectors - I had just really.. really. bad bogging - idle was fine, but as soon as I added some throttle it would bogg and sputter. trust me, the flow rates are different between the injectors, (i think 240cc as compared to 345cc or something).

if you HAVE to drive your car on the p14 ecu, drive lightly.

 

oh and one more thing, if you can borrow some h22a injectors make sure you borrow them from a obd1 prelude, the obd2 variants are 290cc, and are saturated instead of peak and hold like the obd1's.



don't know if it will be your solution but sounds very similar to my experience.

 

thanks i will try that but im pretty sure the fuel injectors came with the engine cuz it came crate from japan, if it turns out to be they used my old ones i'd be happy cuz ill make them buy me parts and do labor for free ahha its in the warranty. so if you solved it i owe u one. it sounds like u had the same problem

 

The OBDII injectors wouldnt work anyway because they have a completely different plug. But try what he said...check your injectors...especially if someone else did your swap that may not specialize in h22a swaps. I witnessed my guy trying to bolt my f22a distrubutor to my h22a...funny in retrospect.

 

ya i think why uninformed shops do this - is because it's obvious you have to transfer the fuel rail - because of where the fuel line connects to it remember RHD vs. LHD) - since the injectors visibly look no different - they probably make the swap transfering the injectors with the rail unknowningly thinking it's no different. In your case, it may not be that the shop is trying to rip you off - it could just be a mistake, but oem obd1 injectors are pretty expensive *new*, and even a set of used can go for like 150 bux.