fuegie
Jdm h22a Cb7
Hey there.. As you can see from my title, i have failed my emissions... 3 TIMES !! .. Anyways, ill get to the point.
I have a 93 Honda Accord LX with a JDM H22A auto swap. Aftermarket parts that i have is intake & exhaust,(Running JDM header/downpipe). Also being somewhat tuned by V-afc.
Anyways, as i was saying.. after i did the complete motor swap, i took it to emissions. It failed of course, and it failed on all 3 tests: HC, CO, and NOX. HC limit was at 2.000 while i was running roughly at 4.100 and CO limit was 1.5 while i was at about 2.000. NOX limit was 1.000 and i was at 1.200.
After i have leaned out my fuel from the v-afc for the 1000-3000 rpms, i took it back to emissions and still failed. HC and CO dropped while Nox went up.
Now on my last try of emissions before i have to start paying for each addition runs, i leaned out my fuel even more and failed HC(but my reading went down), passed CO, but Nox went up even higher now !
Im completely outta answers. My brother-in-law told me that the more i lean out my fuel, the more the Nox will go up because the exhaust gets alot hotter. But the more i lean it out the more HC will drop and it will eventually pass. But my Nox will still fail because its too lean. Does anybody out there know any tricks that i can do that get this thing to pass the smog test?
So im stomped as of now. Only way to make nox pass is to tune for richer on fuel, but HC will go up. And if i lean out fuel for HC to drop, Nox will rise. If anybody can help me out here, i'd appreciate it. Oh, and just in case if you are wondering where im taking the smog test from, Im from Milwaukee, WI...
I have a 93 Honda Accord LX with a JDM H22A auto swap. Aftermarket parts that i have is intake & exhaust,(Running JDM header/downpipe). Also being somewhat tuned by V-afc.
Anyways, as i was saying.. after i did the complete motor swap, i took it to emissions. It failed of course, and it failed on all 3 tests: HC, CO, and NOX. HC limit was at 2.000 while i was running roughly at 4.100 and CO limit was 1.5 while i was at about 2.000. NOX limit was 1.000 and i was at 1.200.
After i have leaned out my fuel from the v-afc for the 1000-3000 rpms, i took it back to emissions and still failed. HC and CO dropped while Nox went up.
Now on my last try of emissions before i have to start paying for each addition runs, i leaned out my fuel even more and failed HC(but my reading went down), passed CO, but Nox went up even higher now !
Im completely outta answers. My brother-in-law told me that the more i lean out my fuel, the more the Nox will go up because the exhaust gets alot hotter. But the more i lean it out the more HC will drop and it will eventually pass. But my Nox will still fail because its too lean. Does anybody out there know any tricks that i can do that get this thing to pass the smog test?
So im stomped as of now. Only way to make nox pass is to tune for richer on fuel, but HC will go up. And if i lean out fuel for HC to drop, Nox will rise. If anybody can help me out here, i'd appreciate it. Oh, and just in case if you are wondering where im taking the smog test from, Im from Milwaukee, WI...