Date: Sun, 21 Oct 2007 11:24:50 -0400
Reply-To: Jonce Fancher <streetbugs@WHISPLLC.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Jonce Fancher <streetbugs@WHISPLLC.COM>
Subject: Re: 1.9L Gutless when first started
In-Reply-To: <471B698B.4090403@gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
I would check the Temp 2 sensor before even starting it up the 1st time of the day to see if it for some reason still thinks the engine is warm. Sorry not to be
much help. Issues Ive had is where it runs like crap after it warms up. But gutless at start up ive had problems with intake leak. C-ya Jonce
>I need some ideas where to look. (1.9L, auto transmission)
>Symptom: when engine is first started it doesn't have any power and won't
>rev easily. By "first started" I mean this will happen the first time the
>van has been started that day, or even if it has been driven until warmed
>up, left to sit in a parking lot for 15 minutes, then started again.
>Pressure on the gas pedal when in Park or Neutral will cause the engine to
>rev, sort of, but it's not very enthusiastic about it, "pulses" VROommmm m
>m m mmVROOmmm m m m. Ken Lewis O2 monitor sits pretty steady in center of
>range during this brief time (new O2 sensor, too, O2 fluctuates properly
>when ECU closes loop). Pressing on pedal will cause rpms to go up, but
>grudgingly. There might be a soft cough or two (backfires?).
>After 30 seconds or so, the engine "wakes up" and revs properly.
>If I don't wait until it has woken up before driving the engine simply
>will not rev at all when in gear. Feathering, pressing, wiggling gas pedal
>do nothing. Van may creep at 1mph for a few seconds, cough, then it will
>wake up. It generally runs a little "rough" for the first few seconds
>after waking up but it has power.
>The "waking up" of the engine is not coincident with the ECU going
>closed-loop by the way. It will wake up well before the bouncing ball on
>the O2 monitor indicates closed-loop operation, which occurs about a
>minute or two after the engine has been running. Before going closed loop
>the monitor drifts kind of lazily around the middle range. This appears to
>be normal.
>After the engine has awoken and smoothed out, there is no problem
>whatsoever for the remainder of the trip. O2 sensor bounces in a lively
>fashion. It has "fixed itself," until it gets turned off for a few minutes.
>I envision it this way: I step on pedal, throttle moves off idle switch
>(tested) and AFM should tell ECU that fuel is wanted. Near as I can tell,
>no fuel is being delivered. Or timing isn't advancing, though it was
>tested (centrifugal and vacuum) a couple weeks ago after this behavior
>first surfaced. O2 sensor sits in middle of range, neither rich nor lean.
>Should rich up, yes?
>Things I have checked (O2, idle, timing advances and retard) are already
>listed on my "poor mileage" page at
>http://camping.elliott.googlepages.com/poormileage so I won't list them here.
>Fuel pump? Funky AFM? What am I missing? Brains for driving such a cranky
>old vehicle (75,000 original miles, California wear and tear, meaning
>looks pretty like new in engine compartment).
>--
>Mike "Rocket J Squirrel" Elliott
>71 Type 2: the Wonderbus
>84 Westfalia: Mellow Yellow ("The Electrical Banana")
>74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
>KG6RCR
Jonce Fancher
56 Single Cab
66 Sunroof Bug
66 Variant Squareback
66 Porsche 912
71 Sunroof Bus
84 Vanagon "Gottfried"
85 Vanagon Westi
2003 10 Passenger Sprinter
Fancher's Upholstery Inc. - www.fanchers.com
Not-A-VW Club- http://mywebpages.comcast.net/jaransont3/notavwclub/