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Swapped H23A engine refuses to pass emissions

 
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Old 06-30-2014, 04:24 PM
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Swapped H23A engine refuses to pass emissions

Hey Luders,

So, yet another problem arises with the lude. This time its emissions.

I had an H23A swapped into the lude by a reputable performance garage called Speed Factory in Washington. Come emissions testing time, I hopped on over to the station only to find out I failed. Every test. Subsequent trips from seattle to the shop in tacoma, and back to the emissions testing ground only got me 5 more fails.

Thing is, the engine runs fantastic, and all the maps look fine on it. Sensors reading correctly, cat doing its job, Air / Fuel ratios correct / compression correct. Hell, I even tried to dump some of that fuel system cleaner into it thats supposed to guarantee a emissions pass. At this point, the garage is completely stumped at to whats going on. The H23A is basically the same damn engine.

I'm at my ends wits with this thing now. If I cant get passed, I now have a useless hunk of metal that I sunk a lot of money and sweat into to. Any ideas of what to do next? Any tips, anything I could look at / tell the shop to look at?

Oh yeah, I cant take the thing to an emissions place and pay 150 to bypass the emissions requirement because the friggen thing is a japanese engine / euro engine and thats illegal to do now.

Things that I've / shop has done : Replaced O2 sensor, Replaced Catalytic converter, raised idle RPM, plugged all PCV holes, tried emissions fluel cleaner, tried methanol.

Things to know : Car is OBD1 now (Tailpipe test), injectors are from the H22A, Exaust is stock, literally same parts that I had in car before the swap aside from the engine / tranny. Also, I live in king county washington.


Heres the latest test sheet.
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Old 06-30-2014, 04:48 PM
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Re: Swapped H23A engine refuses to pass emissions

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Originally Posted by Byud View Post
because the friggen thing is a japanese engine / euro engine and thats illegal to do now.


You've answered your own question
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Old 06-30-2014, 05:22 PM
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Re: Swapped H23A engine refuses to pass emissions

Quote:
You've answered your own question
Unfortunately I didn't find that out until after. Knowing that before, I would have just bought another damn H22A4.
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Old 06-30-2014, 10:59 PM
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Re: Swapped H23A engine refuses to pass emissions

Your kind of stuck now..... Only thing I could recomend is buy an usdm h22, or f series for it to be real cheap, swap it in so you pass, go home and put your h23a back in..... That's if worst comes to worst. Then hold onto the other motor for future emissions tests. Sounds like a pita, but if you love the hobby that much and enjoy the engine it will seem as worth it to you as it does to me
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Old 06-30-2014, 11:31 PM
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Re: Swapped H23A engine refuses to pass emissions

egr port cleaning on the intake manifold??
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Old 07-01-2014, 02:27 AM
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Re: Swapped H23A engine refuses to pass emissions

you could still try:
clean injectors, replace ignition parts: spark plugs & wires + distributor cap and rotor (if current ones are worn/old)

adjust valves and ignition
new air/fuel filters

or then get some milder tune for it
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Old 07-01-2014, 03:56 PM
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Re: Swapped H23A engine refuses to pass emissions

This sucks! I have the same engine in mine and I am looking at moving back to the Everett area as soon as possible (in TX currently). This could mean bad things for me soon. Hopefully there is an easy solution to this.
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Old 07-01-2014, 06:05 PM
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Re: Swapped H23A engine refuses to pass emissions

Beyond all the normal stuff to reduce emissions. It is a jdm or eudm motor. Emission laws are different from country to country. Which is why engines differ from country to country. Also why some vehicles all together all illegal in the states
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Old 07-01-2014, 07:11 PM
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Re: Swapped H23A engine refuses to pass emissions

If you were still obd2 and had the egr system installed, i bet you wouldn't have this issue.
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Old 07-01-2014, 08:29 PM
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Re: Swapped H23A engine refuses to pass emissions

Quote:
egr port cleaning on the intake manifold??
EGR Doesnt get used since its OBD1

Quote:
you could still try:
clean injectors, replace ignition parts: spark plugs & wires + distributor cap and rotor (if current ones are worn/old)

adjust valves and ignition
new air/fuel filters

or then get some milder tune for it
Ignition parts look all good / are brand new. plugs / wires /distro / rotor same.

Valves are all gapped correctly, made sure to check that first.

I'll think about the fuel / air filters. Do you think that would make that much of a difference?

Quote:
wing8806

If you were still obd2 and had the egr system installed, i bet you wouldn't have this issue.
I completely agree wing, but the shop didn't tell me they were swapping the car over to OBD1 until after it was already in. Which sucks, and I'm beginning to feel like they need to claim responsibility for not discussing that with me. Then again I'm at fault for not researching it enough.
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Old 07-01-2014, 08:35 PM
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Re: Swapped H23A engine refuses to pass emissions

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Originally Posted by wing8806 View Post
If you were still obd2 and had the egr system installed, i bet you wouldn't have this issue.
Followup, does anyone know how much trouble it would be for the shop to convert it back to obd2 with the H23A?
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Old 07-01-2014, 08:38 PM
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Re: Swapped H23A engine refuses to pass emissions

Found this, going to call the shop tomorrow. Glad I kept my old parts
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Old 07-02-2014, 06:42 PM
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Re: Swapped H23A engine refuses to pass emissions

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Originally Posted by Byud View Post
Followup, does anyone know how much trouble it would be for the shop to convert it back to obd2 with the H23A?
Depends on some major things like which harness did you use?


OBD2 ecu harness
OBD2 engine harness
knock sensor
crank position sensor
usdm oil pump
injectors
coil and distributor
intake manifold
all manifold sensors
balance shaft crank gear - usdm version




Expect a shop to have the car for a few days.... roughly 12 hours worth of work for someone experienced/ familiar with the swap... with the assumption the original harness was not hacked/someone else helps remove the paper gasket for the manifold/ and you have all the needed parts.



Also expect to need a new knock sensor... nine times out of ten it will break.
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