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My SVX vanagon definitely doesn't run properly, regardless of gearing specifics, etc. I'm old enough to rememeber the hesitation and stumbling associated with a bad accelerator pump; its like that.
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Having chased around looking for vacuum leaks or sticking IAC or IAB valves, I definitely agree that we're babes in the woods when it comes to really understanding SVX ECU inputs. My wandering/racing idle problem turned out to be an intermittent VSS input. Could very well be that the SVX ECU is looking for specific TCU (transmission control unit) inputs that we don't even know about. I've read enough of the forum archives to know that I'm not the lone ranger - lots of posts about this SVX vanagon hesitation problem, though no seeming fix. I'm looking now at the SVX forum, and will try some of their diagnostic approaches to see if I can narrow down the hesitation cause. BTW, my westy is geared for ~ 2850 RPM at 70mph, by way of AA transaxle .70 4th/1.14 3rd and 215/65 16 yoko geolander tires. It has more than enough torque to pull this gearing, which is still quite low compared to any modern 6 cylinder van (which I think typically run 1900 - 2200RPM at ~ 70mph). Looking at the eg33 torque chart (vs the wbx torque curve), this SVX engine should be very tractable at low engine speeds. It is not cammy by any stretch. Indeed, when my eg33 has cleared its throat, it pulls smoothly from about 30 mph in top gear. I know that some fellow eccentrics have converted SVX coupes to manual transmissions. I wonder whether any JDM SVX's were actually delivered this way from the factory. Be interesting to see if a MT SVX ECU exists. --- In subaruvanagon@..., "Neil" <furrylittleotter@...> wrote:
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