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Date:         Mon, 3 Jun 2002 09:23:47 -0700
Reply-To:     Ray Reinhard <rayreinhard@SBCGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Ray Reinhard <rayreinhard@SBCGLOBAL.NET>
Subject:      Re: Tiico / Vagcom / Mileage - Kinda long
In-Reply-To:  <3CF7E619.99DD74F0@qwest.net>
Content-Type: text/plain; charset="iso-8859-1"; format=flowed

Keith,

FWIW, I also have an '86 Westy w/ Tiico conversion -- installed last fall -- and my gas mileage has been in the same range as you describe. I don't have access to the Vag-Com probe/software, so cannot comment on the readings you describe.

At 02:07 PM 5/31/2002 -0700, you wrote: >Fellow Tiico Nuts, > >I have an '86 Westy with a Tiico conversion (about 4K on the engine >now) and I've been fighting with low gas mileage. Currently I get >about 18-19 mpg (65 mph freeway, unloaded, just me in it) up to >about 21mpg (40-50 mph back roads). Mileage was a lot worse, but >while on a trip, I replaced the O2 sensor with a generic 3-wire >(all I could find), and picked up about 3mpg. > >I bought the VagCom software to interface/trouble shoot this puppy >and here's what I've seen: > >Initially, (after O2 sensor replacement and error codes cleared) >had the following DTC's: > >00561 Fuel Mixture Adjustment > 14-10 Adaptation Limit (add) Exceed - Intermitent > >00525 O2 Sensor (G39) > 03-10 No-Signal - Intermittent > >At this point, I reset everything (timing - 10°BTDC, CO, Basic >setting), and redid the O2 sensor connections (crimped & soldered). >Also traced down all the O2 sensor wires from plug to ECU, and all >check out OK. At Peter's suggestion, I pulled the MAP sensor and >cleaned it, and it appears to work fine. > >Since then, I've gotten the following DTC's: > >01247 Evap Canister Purge Regulator Valve (N80) > 37-00 Faulty > >00561 Fuel Mixture Adjustment > 12-10 Adaptation Limit (mul) Exceed - Intermitent > >00537 O2 Sensor Regulation > 27-00 Implausible Signal > > (This second one is the only one I've seen in the last 200 miles >or so.) > >Anyone have any suggestions? > >Also, using the VagCom, I've tried to make sense out of the Group >00 numbers, and some of them seem reasonable (engine load, coolant >temp [in °F however], RPM [needs a X10 multiplier]) but some make >no sense at all. Like for instance, position #2 is supposed to be >battery voltage, and my reading is "184". A snapshot of my Group 00 >readings is: > >1 2 3 4 5 6 7 8 9 10 >152 184 212 029 128 133 002 009 009 091 > >Are these numbers comparable to what you folks have been seeing? >Any help/suggestions appreciated. Thanks, > >Keith Hughes

Ray Reinhard '86 Tiico Westy Camper GL


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