Captainnapalm Posted August 14, 2008 Share Posted August 14, 2008 Hey there. I've used search, combed google, and done everything I can to figure this one out, and I just can't. My car is an '80 model ZX NA, pretty much stock, with the only aftermarket parts being new injectors, which were ordered to replace the stock injectors. So my problem is this. When I step on the throttle, it hesitates, then revs. This started when I got in it and checked the vacuum lines, and found someone had plumbed the lines between the vapor canister, BCDD, and the dizzy vaccum advance wrong. I tried re-plumbing them according to the factory manual, and when I did, the hesitation started. I have read that the BCDD isn't vital, and that it's part of emissions control. And that if there's no inspection, it's not needed. However, I have an ASE mechanic with 30 years experience and a lot of time on Datsun-era Nissans tell me that without it, my injectors will clog somehow. So I ask this. Is there a vacuum diagram that makes more sense than the factory manual one? Or can someone explain to me in plain terms how to plumb this group? I'm certain the problem arose from me trying to plumb this correctly. I'm I'm wrong, correct me. This is my first question, so I'll try not to sound too clueless. This is my first Z-car, and the first time I've run into equipment like this. Quote Link to comment Share on other sites More sharing options...
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