Pinging NG?

[Joseph Pizzimenti]

The MTM 1+ program for the UrS cars isn't really too
fond of hot weather, its small intercooler and heat
soak.  Is it possible you simply got a batch of bad
gas?  I put 94 in year round to avoid the ping, but
have to admit, I've never heard it...but I do feel the
timing back itself off on hotter days.
I don't know if this is your problem, but good gas
never hurt anyone...except your wallet.

Joe
--- Jim Green <jeg1976 at yahoo.com> wrote:
>
> --- duandcc_forums at cox.net wrote:
> > One more piece of information that may help: I see
> > no signs that the ignition system is trying to
> dial
> > back the timing when it pings. No loss of power,
> and
> > the CEL never blinks to indicate that the timing
> has
> > been retarded to max. Shouldn't it be blinking if
> I
> > am hearing pinging?
>
> Yea, it may not blink, but you would notice a
> significant loss of power.  Are your sure it's
> pinging?  I had a worn didtributer on my car that
> rattle and sounded a lot like the engine was
> knocking.
>  When I first did the turbo swap, I admit to
> thinking
> the distributer had gone again, when it was really
> pinging pretty bad.  I really didn't know what it
> sounded like at the time.  Now If I ever hear it I
> know it's time to get the laptop out, or never use
> the
> gas station I previously filled up at again.  Do
> your
> plugs look normal, or are they pitted and broken up?
> If its pinging like you say they should be in pretty
> bad shape.
>
> HTH,
>
> =====
> Jim Green
> '89 90tq 034EFI, Haltech IG5
> http://www.geocities.com/jeg1976/car_home.html
>
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