1998 Impreza Brighton 2.2 Performance

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rusty43 - 15 Sep 2008 17:22 GMT

My ’98 is quite a dog, doesn’t seem to pull very strongly, although it
runs well and smoothly. Looking for chips/mods to liven it up some.
I also have a cel--knock sensor. Is this normally sensor failure or
wiring corrosion? My exhaust pipe is black inside indicating rich f/a
ratio, how can I check for closed loop fuel system operation? Thanks
for any and all help. Russ

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Dano58 - 15 Sep 2008 19:11 GMT

> My ’98 is quite a dog, doesn’t seem to pull very strongly, although it
> runs well and smoothly. Looking for chips/mods to liven it up some.
> I also have a cel--knock sensor. Is this normally sensor failure or
> wiring corrosion? My exhaust pipe is black inside indicating rich f/a
> ratio, how can I check for closed loop fuel system operation? Thanks
> for any and all help. Russ

The most popular mod for these cars is to replace the 2.2 with the
2.5.... ;-) As far as the knock sensor is concerned, it's very simple
to replace. Costs about $100 at the dealer.

Dan D
'99 Impreza 2.5 RS (son's)
Central NJ USA

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Brad - 15 Sep 2008 20:29 GMT

> The most popular mod for these cars is to replace the 2.2 with the
> 2.5.... ;-) As far as the knock sensor is concerned, it's very simple
> to replace. Costs about $100 at the dealer.

An the most popular repair for a 2.5 that has overheated because of head
gasket failure is replace it with a 2.2......

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