Re: [DML] My first tune up

[Ryan Wright <ryanpwright@xxxxxxxxx>]

Joe,

Thank you for the response.

I tested the wire for the O2 sensor and it was good. I replaced the
sensor just for kicks. No luck; same problem. I also verified the ECU
is getting power. Now what?

-Ryan

On 2/4/06, Joseph Kuchan <josephkuchan@xxxxxxxxxxx> wrote:
> The car may be as warm as its going to get, but the way the ECU detects that
> is when it sees a signal from the lambda probe. (O2 sensor) Make sure it is
> working and connected. If it hasn't been replaced in a long time you may
> want to just replace it so you don't have to wonder if it is working. Make
> sure it is connected to the ecu. There is a "quick disconnect" style
> connector in the single lead that goes from the lambda probe through the
> wheel well area into the box behind the drivers seat where the ECU is
> located. Make sure that has not become disconnected, which is a common
> issue. If the ECU does not see a signal from the lambda probe that could be
> your problem.
>
> Joe Kuchan
>
>
> >From: Ryan Wright <ryanpwright@xxxxxxxxx>
> >Reply-To: dmcnews@xxxxxxxxxxxxxxx
> >To: DMCForum@xxxxxxxxxxxxxxx, dmcnews@xxxxxxxxxxxxxxx
> >Subject: [DML] My first tune up
> >Date: Fri, 3 Feb 2006 21:12:30 -0800
> >
> >I've pulled the transmission twice but have yet to perform a tune-up
> >beyond replacing the plugs, etc. That's lame, so now I'm attempting to
> >perform my first real tune up on my DeLorean.
> >
> >I just need some help. :-)
> >
> >The diagnostic socket now works (thanks to Dave Delman; connection
> >underneath was unplugged & damaged as you suggested). Dwell meter
> >shows a steady position when cold, as it should. Unfortunately, once
> >the car warms up, the dwell meter still shows a steady position. I
> >tried running a ground from the ECU to the engine block as suggested
> >here (http://mysite.verizon.net/vze7u0gn/id6.html), but it didn't
> >help. I'm fairly certain I can hear the frequency valve buzzing.
> >
> >Now what do I do?
> >
> >Second piece of information to this puzzle: I started this quest
> >because of a lean condition causing a "glug glug" noise on
> >deceleration. Working blind since my dwell meter wasn't swinging back
> >and forth, I dialed the mixture up 1/4 of a turn anyway. This fixed
> >(!) the glug glug noise, but unfortunately caused the engine to begin
> >surging up and down fairly significantly at idle - so I put the
> >mixture back where it was.
> >
> >From here, I have no idea where to go. Any advice would be greatly
> >appreciated.
> >
> >-Ryan
> >
> >
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>
>
> To address comments privately to the moderating team, please address:
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> For more info on the list, tech articles, cars for sale see www.dmcnews.com
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