Date: Sun, 1 Mar 2015 16:47:35 -0800
Reply-To: thewestyman <zolo@FOXINTERNET.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: thewestyman <zolo@FOXINTERNET.NET>
Subject: Re: 87 2.1 dies after 30 seconds
In-Reply-To: <5C2AF165-8E1F-451E-BFC4-96AA297EA070@comcast.net>
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It is connected to the head under the AC pump. Usually by itself but I have
seen it together with all the other ground wires that come from the left of
it.
With an extension of a ten mm socket. Careful, not to break it. Often is
tight by aluminum corrosion.
Zoltan
-----Original Message-----
From: OlRivrRat
Sent: Sunday, March 01, 2015 3:42 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: 87 2.1 dies after 30 seconds
Kevin
Well I think You are HeadedInTheRightDirection ~ Glad to hear that it
is running ~ But ~
That HeavyishGreenWire is the O2Snsr SignalWire ~ The O2Snsr GroundWire is
Smaller&Brown ~
ORR ~
DeanB
A Correction & More
I should have referred to the BrownWire as the O2Snsr
ReferenceGroundWire & It can be found
by looking @ the HallSnsr Connection on the Distributer & Following those
ConnectedWires Back to
where they Emerge from a ProtectiveSleeve ~ There You ShouldFind a BrownWire
that will either be
connected to the IntakePlenum or the Eng'Block ~ That is the Wire that
NeedsToHave a VeryNiceClean
ConnectionToGround ~
Sorry AboutThis ~ AnotherSlightCorrection
Just went out to take a Pic of a Friends 89 & the Brown Ref'GrndWire
on It Doesn't Emerge from
that ProtectiveSleeve @ the SamePoint as the HallWires ~ It Emerges a Couple
of inches Ahead of the
end where the HallWires Emerge & It is @ a Point that is Not Easily Seen ~
On 1 Mar , 2015, at 2:53 PM, Kevin Duvernay wrote:
> ding ding ding and the inner is: Mark.
>
> Thank you Mark. It was in fact the O2 sensor ground wire (green slightly
> larger gauge wire). Someone had mistakenly plugged it into the unused
> spade
> connector on the bottom of the coil because it was just sitting there
> unplugged while the O2 sensor was out. Unplugged it from the coil and it
> runs beautifully now. The new O2 sensor also seems to have solved the
> running rich problem.
>
> Should have consulted the list before spending many hours swapping out so
> many parts...
>
> On Fri, Feb 27, 2015 at 5:05 PM, mark drillock <mdrillock@cox.net> wrote:
>
>> This sounds like it could be related to the oxygen sensor circuit. When
>> the engine is cold the ECU ignores the O2 sensor. Once the engine warms
>> up
>> to a certain point the ECU then tries to use the O2 sensor reading as a
>> basis for adjusting the fuel mixture. It has a lot of leeway in trying to
>> adjust it and can easily adjust it so far that the engine stops running.
>> When you turn the key off and then start the engine again the ECU again
>> ignores the O2 sensor but only briefly. So with an already warmed up
>> engine
>> restarting clears the O2 sensor circuit for a short while each time. With
>> a
>> cold engine the O2 circuit is inactive until the engine warms up.
>>
>> If it is related to the O2 sensor circuit it could be the sensor, the
>> wiring to the sensor, or the reference ground wire the ECU uses when
>> trying
>> to read the sensor. The reference ground wire is the brown wire that
>> comes
>> out of the small bundle that goes to the distributor connector. People
>> see
>> this brown wire and assume it has to do with the distributor but no, it
>> is
>> for the ECU O2 circuit. It needs to connect to engine metal and needs a
>> clean connection and no other ground wires should share that connection.
>>
>> Mark
>>
>> Kevin Duvernay wrote:
>>
>>> I do have a spare brand new temp II sensor, we'll try tossing it in.
>>> easy
>>> enough. I suppose it make sense, it actually does seem to run good for
>>> several more minutes if its started cold...?
>>>
>>> On Fri, Feb 27, 2015 at 4:28 PM, Jim Felder <jim.felder@gmail.com>
>>> wrote:
>>>
>>>
>>>>
