Unless the O2 sensor issue was fouling the spark plugs, it does not
explain the no start.

Dennis

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
Chad Lyles
Sent: Saturday, February 23, 2008 1:38 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: WHAT JUST HAPPENED???

i seriously wish i knew this kind of stuff at random! you guys are
teaching
me alot... and it turns out that it was a loose (broken) wire connection
on
the o2 sensor...runs fine starts fine now.
thanks again Dennis always good to hear from you!
C~

On Sat, Feb 23, 2008 at 6:55 AM, Dennis Haynes <d23haynes57@hotmail.com>
wrote:

> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of
> Scott Daniel - Shazam
> Sent: Thursday, February 21, 2008 7:07 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: WHAT JUST HAPPENED???
>
> Dennis,
> Where are you getting that if the ecu sees an open Temp II sensor it
> provides lots of extra fuel ???????
> Are you just assuming that ?
> It's well known and observed that if the ECU does not see the Temp II
> sensor
> the engine will not and can not start.
>
> Scott
> "The engine will usually not start because it is being flooded. Use noid
> lights or duty cycle meter and you will see the injectors are still
> firing. There is nothing that says no sensor, no start.
>
> In fact, the procedure to set ignition timing calls for disconnecting
the
> temp 2 sensor while it is running to put the timing into a default. The
> engine runs poorly but it does continue to run. "
>
> Dennis
>
> Once
>
> Yes, a cold temp reading from the temp II sensor makes the ecu put in
more
> fuel.
> But 'no contact' from it means 'no fuel' I believe.
>
> Your last two sentences :
> This is needed when the fuel does not vaporize. On a warm engine
> the fuel vaporizes quickly and the lack of oxygen prevents combustion so
> you get the no start.
>
> Doesn't really make sense.
> Especially that last sentence, that REALLY doesn't make sense.
> Perhaps what you are trying to say makes technical sense, but this last
> sentence sure doesn't.
> 'warm engine, fuel vaporizes quickly' .........that part is
> ok...........but
> 'lack of oxygen' ........what lack of oxygen ?
>
> it was mostly likely simply flooded from the spark plugs not igniting
the
> fuel air mixture that was present.  Perhaps the plug wires are 10 years
> old.
> Also..........bearing in mind about 'unflooding' an engine with an air
> flow
> meter..........
> While you might be holding the throttle wide open to get air going
through
> it, the flapper in the air flow meter is still mostly closed , or at
idle
> position.
>  And it could be a bad connection to the temp II sensor too.
> If it doesn't see that, it won't start.,
> But I suspect ordinary 'the plugs didn't fire the mixture there, and got
> temporarily wet fouled."
> Scott
> www.turbovans.com
>
>
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of
> Dennis Haynes
> Sent: Thursday, February 21, 2008 2:31 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: WHAT JUST HAPPENED???
>
> The huge puff of smoke is an indication that the engine was flooded.
> Flooding on a warm or hot restart is usually a sign of a bad connection
to
> or a defective temp 2 sensor. When the ECU sees the sensor open or a
high
> resistance it says bring on the fuel for a cold start in really cold
> weather. This is needed when the fuel does not vaporize. On a warm
engine
> the fuel vaporizes quickly and the lack of oxygen prevents combustion so
> you get the no start.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
Of
> Chad Lyles
> Sent: Thursday, February 21, 2008 3:19 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: WHAT JUST HAPPENED???
>
> Hello,
> well as i announced this morning ...i passed DEQ and Hoppy is running
> GREAT... i went and got my new tags at DMV and then went to the
> bank...(all
> in hoppy) i was in the bank for 10 minutes came out and hoppy wouldnt
> start... it would turn but not kick... checked the coil to see if i was
> getting a fire...i was getting consistant fire. checked the fuel pump to
> see
> if it was humming it was humming. every thing was as it should be... i
> could
> smell gas so gas was moving and  had just filled up this morning ...but
no
> VROOM...
> i called the mechanic he was puzzled and said "just get it towed" (which
i
> was like, "yeah i am 30 miles from you and i cant pay load up and 3
bucks
> a
> mile on that!") so i called the tow truck and i was packing my stuff up
> and
> i thought hmm... i will try one more time... i put the pedal to the
floor
> and cranked up... huge puff of smoke and strong smell of gas then
> VROOOOM!!!
>
> so back to my question: WHAT JUST HAPPENED????
> would the fact that i was parked on a incline maybe have been the start
of
> this non starting? its never done that before... i am just frustrated to
> the
> max right now. i cant afford to keep putting her in the shop every 2
> days...is this some thing i should worry about or chalk it up to a
fluke?
>
> --
> Chad~
> 84gl "Hop-a-long"
>

--
Chad~
84gl "Hop-a-long"