if N0x failed it could be your exaust gas recirculating valve. the only thing it does is control you n0x levels. if that doesnt work. contact 350zftw
if N0x failed it could be your exaust gas recirculating valve. the only thing it does is control you n0x levels. if that doesnt work. contact 350zftw
Nice try but none of the B series Honda engines come with an EGR. Besides, even if it had EGR and it worked, the numbers would still be high. The main purpose of the EGR is to assist in reducing the NOx, not control it.Originally Posted by Major Motion
The issue with this car would be the catalytic converter not oxidizing the way it should. How big is the converter/exhaust and is it still in the stock position?
K series 626. That's right. It's got a K in it.
the converter is from magnaflow which i ordered online and is universal:
Inlet/Outlet Size: 2.5"
Overall Length: 13"
Body Length: 9"
Width: 6 1/2"
Height: 4"
OBD 1 & 2 Approved!
As for the the catback i got a skunk 2 mega power specifically for a 88-91 crx (d series)used. So i took it to muffler shop to get some flanges and get it custom since the header is from a b series and the catback is from a d series.
The converter is too large for that engine as far as emissions go. If you can get it to pass with the same converter, it's gonna have to be from the lowest gear allowed. The cat isn't flowing enough gas from that 2.0L at those engine speeds for it to work properly. Your best bet is to retard the shit out of the timing and retry. If that don't work, you need to install a smaller converter, possibly a 2 inch converter, 2.25 max.
K series 626. That's right. It's got a K in it.
But that is the same cat that i got that my friend recommended me. He also got a crx with a ls/vtec and he mange to pass his emission test..besides if its the cat wouldnt i fail the HC ppm and CO %?
Nope. According to your emissions numbers, you have a lazy O2 sensor judging by the CO numbers. You want them to be anywhere near .20 or lower. You may wanna consider changing that sometime. But even then, that would show up under HC's meaning that the failing O2 sensor is causing the computer to dump fuel. But your HC's are in a controllable range so that's not part of the problem. The converter you bought is just like your stock converter; it's a 3 way catalyst. It has to get hot enough to burn off any unburned fuel (HC) and CO. It has to eliminate or seriously reduce the levels of NOx. Retard your timing and try it again. But ask for a pretest so you don't waste your second (free) test.
K series 626. That's right. It's got a K in it.
As u were saying about my O2 sensor, I dont have the O2 sensor installed at the moment after the swap cus before, i had a d series and its running a one wire o2 sensor so now i need a 4 wire O2 sensor. Surprisingly i still pass the other portion of the test w/o the O2 sensor. As u were saying about letting the cat warm up, i drove the car for about 10-15mins max due to no tag at the moment but will that really helps? As for the timinig i just got the timing light from a friend but i dont know what is the standard degree for a b20b. Also when u speak of timing which one ur talking about ignition timing or the other timing?
I tried to look up pics where my EGR is located but cant find it for the b20b which was swapped onto my crx. And y contact 350zftw?
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