The fuel lines are sometimes the culprit, but I've found many times that the big rubber boot between the AFM and the manifold has small cracks around the hose entry points. Also, I believe all 2.0L L-Jetronic engines incorporate a deceleration valve. Matt New Cumberland, PA '81 Westy (current) '74 914 (current) '72 Type III Fastback '83 Rabbit '79 Rabbit > Date: Sun, 15 Jul 2001 20:31:23 -0500 > From: Stan Wilder <wilden1@JUNO.COM> > Subject: Re: Yet another 2 liter question > > I have an 83 Air cooled and I get some of the same symptoms. I get > 800-1200 rpm periodically, I just live with it cause I can't see that it > hurts anything with a manual transmission. Might be more important if you > have an automatic. > I've read on the list to first check for vacuum leaks. Next check for > fuel leaks at the injectors, the hose may look good but they often have > very slight leaks that appear only when you wiggle them when they're > under pressure (I've found this situation). > The other thing is that you could be getting sporadic rich lean mixture > because your AFM has some minor resistance on the contractor plate (never > opened mine). > My 83 has deceleration valve and I suppose that you could add one of > these to your 81 but I can't say it would improve anything or fix your > problem. > Low fuel pressure is something else you should check. > > Stan Wilder > 83 Westfalia Air Cooled. > |
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