废气测试没过：NO ppm超标-limit 663, reading 1029

xiaoyub · Dec 3rd, 2004, 21:07

请问各位大虾，什么原因，如何补救？先谢了！

fleetwood · Dec 4th, 2004, 09:53

or leave your contact info.

xiaoyub · Dec 4th, 2004, 18:48

Emission Control System Inspection:
Exhaust Gas Recirculation System: N/A
Air Injection System: N/A
Postive Crankcase Ventilation System: N/A
Catalytic Converter: Present
Fuel Evaporative System: N/A
Thermostatic Air Cleaner System: N/A
Gas Cap Pressure Test:Pass
Fuel Filter Integrity Check: Pass

ASM2525 Test: CURB Idle Test:
HC: 86/7(limit/reading) 200/7
CO:0.48/0.01 1.00/0.00
NOx:663/1029 N/A
RPM: 1810 711
Dillution:14.8 13.8
email:mp4cga@yahoo.com
多谢了！

fleetwood · Dec 4th, 2004, 20:05

I don't think garage open on Sunday..so what time..

xiaoyub · Dec 5th, 2004, 00:25

能给一些具体如何检查，更换EGR的指导吗？还有PCV阀，是不是也该换了？搞不定了，再麻烦你。多谢你的好意和答复！

fleetwood · Dec 6th, 2004, 19:17

It could be long time to explain how EGR works, and new EGR costs not cheap. I assume EGR maybe stuck, move and clean it should be ok.
By the way, I only have time on Saturday, let me know if you still not go through it.

xiaoyub · Dec 7th, 2004, 23:17

需要的材料，工具及注意事项。拜托了！

fleetwood · Dec 10th, 2004, 19:08

The EGR system is used to lower NOx (oxides of of nitrogen) emissions levels caused by high combustion temperatures. It does this by decreasing combustion temperature.

The main element of the system is an EGR valve operated by vacuum, and mounted on the intake manifold.The EGR valve feeds small amounts of exhaust gas back into the combustion chamber.

Sometime just working without enough vacuum, clean it could make it normal.

I think if change a new EGR may cost more than $100.

xiaoyub · Dec 18th, 2004, 03:32

我找了半天，发现我的车没有EGR阀。那是什么原因，会是O2 sensor吗？该不会是catalytic converter吧？再请高手指点，谢了！

fleetwood · Dec 18th, 2004, 09:52

you know the price?
oxygen sensor: parts$65+labour$30
catalystic converter: parts$150+labour$50

i am quite sure if you go some auto shop, they will ask you change this, change that, while you know little about this. Big Money.

Still a small problem, according to my experience.

xiaoyub · Dec 18th, 2004, 11:18

你总说是小问题，问题在哪，却始终不愿说出来。哎！

fleetwood · Dec 22nd, 2004, 23:08

While you car only fail on NOX(not extremly high), and HC CO reading is low.
No need to change O2 and CAT.

Basicly there is 2 way to control NOX, one is EGR, ANOTHER is timing adjust.
For EGR system, could be no proper amount recirculate exhaust gas return to engine, the reason could be no enough vacumm for EGR or EGR pipe is dirty suck, so the best way to clean it or change a new one.

For timing adjustment, for high NOx, is to retard the timing. Find the distributor, loose the nuts, turn the distributor( which way depends on car model, or check the car repair manual, retard timing means could hear the idle RPM a little low, but if retard too much, the engine will lose power.

Make mark before you move anything, so when finish you know how to turn it back.

DIY when feel comfortable, Good Luck.

xiaoyub · Dec 23rd, 2004, 02:16

我已用timing light 重新设置了ignition timing.
但我发现cat converter的接头（法兰盘已锈）和exhaust manifold 有泄漏。想这次搞定估计需要多少银子？这我可不想DIY.
也希望懂行的DX不吝赐教，先谢了！

curtwu · Dec 23rd, 2004, 12:49

我的89年corolla,已经开了36万公里,今年测的尾气,第一次没过,到车行修了2次,又测了2次,指标都比第一次差,后来买了guaranteed to pass,并按照说明作了后,passed!!!
我的感觉,一般车厂,如没有测试(尾气)设备,很难有帮助,因为尾气指标是看不见摸不着的.

michael liu · Dec 23rd, 2004, 14:19

坛子里真有一批还没过e-test, 能否给些具体的信息, 如产品的名字, 型号等. (最好是英文)
Thanks a lot.

xiaoyub · Dec 23rd, 2004, 15:20

CRC Guaranteed To Pass, $9.99+tax=$11.49

nolater · Dec 23rd, 2004, 18:08

买了以后，自己可以搞好吗？我马上也作了尾气检查了
上次一个指标仅仅低了0。01通过了，这次可能要麻烦

xiaoyub · Dec 23rd, 2004, 18:22

按上面的说明做。

Dec 3rd, 2004, 21:07	#1
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470	废气测试没过：NO ppm超标-limit 663, reading 1029 请问各位大虾，什么原因，如何补救？先谢了！
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470

Dec 4th, 2004, 09:53	只看该作者 #2
fleetwood Junior Member 注册日期: Dec 2004 帖子: 23 声望: 10	I can help to fix, show your car model and all emission reading, or your contact info or leave your contact info.
fleetwood Junior Member 注册日期: Dec 2004 帖子: 23 声望: 10

Dec 4th, 2004, 18:48	只看该作者 #3
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153	94 Corolla Emission Control System Inspection: Exhaust Gas Recirculation System: N/A Air Injection System: N/A Postive Crankcase Ventilation System: N/A Catalytic Converter: Present Fuel Evaporative System: N/A Thermostatic Air Cleaner System: N/A Gas Cap Pressure Test:Pass Fuel Filter Integrity Check: Pass ASM2525 Test: CURB Idle Test: HC: 86/7(limit/reading) 200/7 CO:0.48/0.01 1.00/0.00 NOx:663/1029 N/A RPM: 1810 711 Dillution:14.8 13.8 email:mp4cga@yahoo.com 多谢了！
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153

Dec 4th, 2004, 20:05	只看该作者 #4
fleetwood Junior Member 注册日期: Dec 2004 帖子: 23 声望: 10	not big problem. Let me check EGR and timing, fixed. I don't think garage open on Sunday..so what time..
fleetwood Junior Member 注册日期: Dec 2004 帖子: 23 声望: 10

Dec 5th, 2004, 00:25	只看该作者 #5
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153	想自己先动手解决能给一些具体如何检查，更换EGR的指导吗？还有PCV阀，是不是也该换了？搞不定了，再麻烦你。多谢你的好意和答复！
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153

Dec 6th, 2004, 19:17	只看该作者 #6
fleetwood Junior Member 注册日期: Dec 2004 帖子: 23 声望: 10	Great do it yourself. It could be long time to explain how EGR works, and new EGR costs not cheap. I assume EGR maybe stuck, move and clean it should be ok. By the way, I only have time on Saturday, let me know if you still not go through it.
fleetwood Junior Member 注册日期: Dec 2004 帖子: 23 声望: 10

Dec 7th, 2004, 23:17	只看该作者 #7
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153	不必解释how EGR works，可不可以针对我的车型，讲解如何拆，清洗EGR, 需要的材料，工具及注意事项。拜托了！
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153

Dec 10th, 2004, 19:08	只看该作者 #8
fleetwood Junior Member 注册日期: Dec 2004 帖子: 23 声望: 10	Need vacuum tester to check EGR, or listen by sound. The EGR system is used to lower NOx (oxides of of nitrogen) emissions levels caused by high combustion temperatures. It does this by decreasing combustion temperature. The main element of the system is an EGR valve operated by vacuum, and mounted on the intake manifold.The EGR valve feeds small amounts of exhaust gas back into the combustion chamber. Sometime just working without enough vacuum, clean it could make it normal. I think if change a new EGR may cost more than $100.
fleetwood Junior Member 注册日期: Dec 2004 帖子: 23 声望: 10

Dec 18th, 2004, 03:32	只看该作者 #9
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153	没有EGR阀我找了半天，发现我的车没有EGR阀。那是什么原因，会是O2 sensor吗？该不会是catalytic converter吧？再请高手指点，谢了！
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153

Dec 18th, 2004, 09:52	只看该作者 #10
fleetwood Junior Member 注册日期: Dec 2004 帖子: 23 声望: 10	wow, just kidding me you know the price? oxygen sensor: parts$65+labour$30 catalystic converter: parts$150+labour$50 i am quite sure if you go some auto shop, they will ask you change this, change that, while you know little about this. Big Money. Still a small problem, according to my experience.
fleetwood Junior Member 注册日期: Dec 2004 帖子: 23 声望: 10

Dec 18th, 2004, 11:18	只看该作者 #11
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153	没有开玩笑，是没有EGR阀呀你总说是小问题，问题在哪，却始终不愿说出来。哎！
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153

Dec 22nd, 2004, 23:08	只看该作者 #12
fleetwood Junior Member 注册日期: Dec 2004 帖子: 23 声望: 10	For me is easy, with lots experience While you car only fail on NOX(not extremly high), and HC CO reading is low. No need to change O2 and CAT. Basicly there is 2 way to control NOX, one is EGR, ANOTHER is timing adjust. For EGR system, could be no proper amount recirculate exhaust gas return to engine, the reason could be no enough vacumm for EGR or EGR pipe is dirty suck, so the best way to clean it or change a new one. For timing adjustment, for high NOx, is to retard the timing. Find the distributor, loose the nuts, turn the distributor( which way depends on car model, or check the car repair manual, retard timing means could hear the idle RPM a little low, but if retard too much, the engine will lose power. Make mark before you move anything, so when finish you know how to turn it back. DIY when feel comfortable, Good Luck.
fleetwood Junior Member 注册日期: Dec 2004 帖子: 23 声望: 10

Dec 23rd, 2004, 02:16	只看该作者 #13
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153	多谢你的答复和宝贵经验我已用timing light 重新设置了ignition timing. 但我发现cat converter的接头（法兰盘已锈）和exhaust manifold 有泄漏。想这次搞定估计需要多少银子？这我可不想DIY. 也希望懂行的DX不吝赐教，先谢了！
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153

Dec 23rd, 2004, 12:49	只看该作者 #14
curtwu Senior Member 注册日期: Jul 2004 帖子: 105 声望: 0	试试canadian tire 的guaranteed to pass ($10) 我的89年corolla,已经开了36万公里,今年测的尾气,第一次没过,到车行修了2次,又测了2次,指标都比第一次差,后来买了guaranteed to pass,并按照说明作了后,passed!!! 我的感觉,一般车厂,如没有测试(尾气)设备,很难有帮助,因为尾气指标是看不见摸不着的.
curtwu Senior Member 注册日期: Jul 2004 帖子: 105 声望: 0

Dec 23rd, 2004, 14:19	只看该作者 #15
michael liu Junior Member 注册日期: Jul 2004 帖子: 5 声望: 0	Could you give more information please? 坛子里真有一批还没过e-test, 能否给些具体的信息, 如产品的名字, 型号等. (最好是英文) Thanks a lot.
michael liu Junior Member 注册日期: Jul 2004 帖子: 5 声望: 0

Dec 23rd, 2004, 15:20	只看该作者 #16
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153	CT有卖 CRC Guaranteed To Pass, $9.99+tax=$11.49
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153

Dec 23rd, 2004, 18:08	只看该作者 #17
nolater Senior Member 注册日期: Jul 2004 帖子: 2,203 积分:4 精华:2 声望: 2210692	CRC Guaranteed To Pass,是一本书还是专用的工具？买了以后，自己可以搞好吗？我马上也作了尾气检查了上次一个指标仅仅低了0。01通过了，这次可能要麻烦

Dec 23rd, 2004, 18:22	只看该作者 #18
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153	CRC 是牌子，Guaranteed To Pass是添加剂的名字按上面的说明做。
xiaoyub Senior Member 注册日期: Jul 2004 帖子: 470 声望: 29153