Hesitation/stumbling 96 non-turbo

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AK - 22 Jun 2004 03:36 GMT

Hi, all.

I'm still new to the 300zx world. I just got mine about 6 months ago.
Its a 96 non-turbo with about 52K miles.

It had been performing well in the spring (Mar/Apr), but lately its
been acting up a bit. Here's the problem....

Sometimes when I start from a complete stop, it hesitates. Kinda'
like its not getting enough fuel. I've noticed that if I shift into
Neutral while at complete stop, sometimes the engine will stay at
1100-1200 RPM. If I give it a little gas while in Neutral, the RPMs
fall down to where they should be. Its only when the RPMs in Neutral
are high that it "hesitates".

I've been reading the newsgroup and it looks like people are getting
20+ mpg, but I'm only getting about 17. Its all city driving
(Chicago), but I'm wondering if this is also a symptom of hesitation
problem.

Any thoughts? Thanks for the help.

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Jim - 22 Jun 2004 03:51 GMT

Have you checked if any codes have been set? Fuel filter been changed?.

> Hi, all.
>
[quoted text clipped - 17 lines]
>
> Any thoughts? Thanks for the help.

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Steve T - 22 Jun 2004 05:54 GMT

> Hi, all.
>
[quoted text clipped - 5 lines]
>
> Sometimes when I start from a complete stop, it hesitates.

Clean the throttle housings and check the fuel injection temp sensor
conector for corrotion. It's the 2 wire sensor on the front water pipe,
this condition can cause poor fule mileage as can weak O2 sensors. Also,
has anyone tuned it up using non-factory plugs? People install -bosch
platinums- instead of the real NGK platinums and this can cause all sorts
of weird problems.

Signature

Steve

http://www.atlantaracing.com

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