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Date: 19 Jun 2003 14:03:45 -0600
From: andrewunix <agreenbunopsamnet>
Subject: Re: NG 900S 4-cyl n/a cold start problem
Thu, 19 Jun 2003 18:37:04 GMT, noemailnopsamSPAMme.com suggested:
: On 19 Jun 2003 08:26:42 -0600, andrewunix <agreenbunopsamnet> wrote:
:
:>Tried that this morning and it didn't die on me. Still idled rough for a
:>few seconds, though. What do you think?
:
: I'm thinking that you have a fuel delivery problem. When the ignition
: is left on, the pump builds pressure and then it starts OK. It's just
: a theory though.
:
: I don't know much about the fuel system on the NG900... you might want
: to search in here a bit. It could be the fuel pump, or a clogged
: filter. If you have not changed the filter, I'd start there. See if
: you can find other folks complaining about fuel pumps failures before
: you invest in one.
The thing is, with a fuel delivery problem I would expect the performance
to lag while driving it, which it doesn't. The car only behaves badly at
idle.
I've always had a fairly quirky idle on this car, but I've never been able
to isolate a cause. Can't find any vacuum leaks, and tried swapping out
the AIC valve, but that didn't help either. Basically, the idle speed
hunts up and down at a steady rate. Turning on the A/C exacerbates the
problem quite a bit. One mechanic thought it might be the ECU, but
swapping with a known good one made no difference.
: I assume you've changed the plugs and air filter ?
I checked the air filter and it's pretty clean. Plugs only have about
7,000 miles on them, but I'll probably take a look at them. Fuel filter
was done at the same time as the plugs.
--
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