EGR valve problems, vaccuum? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

fleaf · 02-12-2004, 04:23 PM

Hi, my car is failing NOX for emissions (gross polluter). Iginition timing was off and I fixed that, but I think my EGR valve is the main culprit. I hooked up a vacuum gauge to the EGR valve and went up to 3000 rpm with load and it's barely reading any vacuum. The needle jumps up when I accelerate but quickly falls down.

About How much vaccuum should I be seeing? How should the needle be acting when im accelerating? I don't want to replace the whole unit if all I have to do is clean it. Seems like this subject is pretty common among nissans as I found a lot of result from searching, but i want to know if there is alternative way to replacing the unit since I don't have much money.

Thanks

02-12-2004, 04:23 PM	#1
fleaf Leaky Injector Join Date: Dec 2002 Location: Southern California Posts: 108 Trader Rating: (0) Feedback Score: 0 reviews	EGR valve problems, vaccuum? Hi, my car is failing NOX for emissions (gross polluter). Iginition timing was off and I fixed that, but I think my EGR valve is the main culprit. I hooked up a vacuum gauge to the EGR valve and went up to 3000 rpm with load and it's barely reading any vacuum. The needle jumps up when I accelerate but quickly falls down. About How much vaccuum should I be seeing? How should the needle be acting when im accelerating? I don't want to replace the whole unit if all I have to do is clean it. Seems like this subject is pretty common among nissans as I found a lot of result from searching, but i want to know if there is alternative way to replacing the unit since I don't have much money. Thanks __________________ 92' black 240sx (ka24de)