2010年11月15日 · I have read all the pdf's and have done the individual testing (minus hand vacuum). 1. I tested that the EGR valve is retaining vacuum, but compressing the valve, and …

2011年2月28日 · The EGR modulator has the effect of fine tuning the openning of the flap with in the EGR Valve. The EGR modulator adds more vacuum or less vacuum to the openning of the …

2011年5月28日 · the modulator should sit just above the EGR valve. You can clean that white filter and put it back but be careful on the inside so you don't clog it. If you decide to buy an …

2010年2月8日 · I'm happy to report code P0401 was cleared after replacing the vacuum modulator. It had lingered for many months, even after 3 cleanings of the EGR valve, vacuum …

2018年6月21日 · Is there a video for the EGR valve showing the exhaust gas temp sensor? former owner 98 Camry LE, 2.2L, automatic 54k miles, drop in K&N A/F, :hammer: ... timing …

2010年9月17日 · 3) EGR pipe #2 (V6), 4) EGR Vacuum modulator, 5) EGR VSV and vacuum hoses from throttle body to modulator, from modulator to VSV and from VSV to EGR valve. 6) …

2009年5月9日 · After replacing both the EGR valve with a used unit, and a new vacuum modulator, the problem continued moderately this winter at 2,000' elevation in AZ. On …

2008年12月16日 · It is code 71, which is for the egr system. The engine runs good most of the time, but the idle hesitates about twice a day now, it was more often, but I have been …

2020年7月17日 · Unplugging the EGR should eliminate any excessive vacuum from it not closing. Once the vac tube is disconnected from the EGR it's inoperable - modulator or not. A partially …

2011年5月18日 · Yes, I missed properly answering that part. Edited above message to reflect that. While I puzzled over the vacuum difference between the modulator and EGR valve, …