Hi everyone! I'm having a heck of a time, trying to get my cb to pass emissions testing. Since last November, I've failed 4 smog test in a row. I've been doing everything I can think of to make it pass, but now I'm becoming discouraged! My car has been un-registered since the beginning of last September. So anyways, I have all the test results from these 4 previous tests, and I'm going to post them up here, along with everything I changed or replaced before each test. I'm hoping and praying that its some minor problem that I'm overlooking....
Okay, so before i start, here's some relevant info. The car - 93' EX sedan, with JDM H22a, and M2B4. running on USDM P13. As far as i know, and have tested, all my sensors and wiring are good. Before the first smog test was even preformed, i had already replaced, FUEL FILTER, CATALYTIC CONVERTER, HEADER-BACK EXHAUST W/2.25 PIPING, SPARK PLUG WIRES, relatively NEW DISTRIBUTOR ROTOR, relatively NEW DENSO o2 SENSOR. I've always ran 89 octane, but after I failed the second test, I switched to 91.
Test Results-
I've tested the EGR system extensively, and seems to be operating correctly. The smog ref made me remove the fuel pressure regulator solenoid, before the first test, cause he claims it's not shown in the vacuum diagram for a 94' H22, so for the first 3 tests, there was no FPR solenoid hooked up. Also, after the second test is when i really gave the EGR a good testing,also started testing the radiator fan, cause it has never worked right, and and then i realized that I had Fan switches A and B, hooked up backwards, cause when I did my swap, I guess I just crossed them cause they'er both green and both connect in the same area. So after i hook them back up the right way, and go test drive, and throw a CEL... I stop and read the code, and its a 43. Fuel system delivery code. Keep in mind, I never throw CEL's! so then after that, my car would pop on the CEL every time i drove it, at exactly the distance, every time. I knew that because it would turn on at the same street, every time i would leave my house. So i went to a guy to get a pre test(3rd test)with the CEL on, and that was the only time the NOx was passing,it dropped down to 193 ppm! but the CO spiked super high, at 9.7 So i come home and decided to re-connect the FPR solenoid, that the smog ref made me take off... so i put it back on and reset the ECU, and go test drive. No more CEL! so then i install the new o2 Denso o2 sensor, which i bought because i thought i may have gotten my old one greasy when changing my exhaust system. I hear the o2 sensors can get fouled very easily, and they'er very touchy. also a new distributor cap. hen i go test again, and i was thinking i for sure had it this time! but another fail. Somebody please inform me!! Im sorry if this is way too much jumbled up information! its just so hard to get out on a key board
Thanks everybody!
Okay, so before i start, here's some relevant info. The car - 93' EX sedan, with JDM H22a, and M2B4. running on USDM P13. As far as i know, and have tested, all my sensors and wiring are good. Before the first smog test was even preformed, i had already replaced, FUEL FILTER, CATALYTIC CONVERTER, HEADER-BACK EXHAUST W/2.25 PIPING, SPARK PLUG WIRES, relatively NEW DISTRIBUTOR ROTOR, relatively NEW DENSO o2 SENSOR. I've always ran 89 octane, but after I failed the second test, I switched to 91.
Test Results-
I've tested the EGR system extensively, and seems to be operating correctly. The smog ref made me remove the fuel pressure regulator solenoid, before the first test, cause he claims it's not shown in the vacuum diagram for a 94' H22, so for the first 3 tests, there was no FPR solenoid hooked up. Also, after the second test is when i really gave the EGR a good testing,also started testing the radiator fan, cause it has never worked right, and and then i realized that I had Fan switches A and B, hooked up backwards, cause when I did my swap, I guess I just crossed them cause they'er both green and both connect in the same area. So after i hook them back up the right way, and go test drive, and throw a CEL... I stop and read the code, and its a 43. Fuel system delivery code. Keep in mind, I never throw CEL's! so then after that, my car would pop on the CEL every time i drove it, at exactly the distance, every time. I knew that because it would turn on at the same street, every time i would leave my house. So i went to a guy to get a pre test(3rd test)with the CEL on, and that was the only time the NOx was passing,it dropped down to 193 ppm! but the CO spiked super high, at 9.7 So i come home and decided to re-connect the FPR solenoid, that the smog ref made me take off... so i put it back on and reset the ECU, and go test drive. No more CEL! so then i install the new o2 Denso o2 sensor, which i bought because i thought i may have gotten my old one greasy when changing my exhaust system. I hear the o2 sensors can get fouled very easily, and they'er very touchy. also a new distributor cap. hen i go test again, and i was thinking i for sure had it this time! but another fail. Somebody please inform me!! Im sorry if this is way too much jumbled up information! its just so hard to get out on a key board
Thanks everybody!
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