let me know if you fixed your CEL code 71. I have the same problem.
Quote:
Originally Posted by ksorce
I'm diagnosing an EGR problem on a 1995 Corolla with the 1.8 engine. I got a 71 code but also even with the cel cleared the car failed NY inspection for NOX levels. I applied vacuum directly to the EGR with the car idling and it dies so that tells me the EGR is not stuck. I was trying to t-shoot the modulator and VSV. The question I have is at what particular speed should I feel vacuum from the R port on the throttle body? It does not seem to be giving any vacuum at any engine speed. I also opened the throttle with the eigine off and can't blow air into the vacuum fitting for the R port on the TB nor spray carb cleaner through it. This makes me think it is plugged but I'm not sure if this is a condition of how the R port is supposed to work. Help!
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