my first DSM, but i think its running way too rich

[amhalon]

i bought my gst from a used car lot, and had the dealership replace the water pump because there was a small water leak. but whenever someone is behind my car, it still smells like its running rich... help would be MUCH appreciated... any suggestions? O2 sensor or something?

 

[EvolvingGST]

is it still the same after it runs for a while? or just when you start, and how many miles does it have, before after oil changes and just in general. It can range from a tune up to a Exhuast Manifold so please try to be more specific.. Snoop around the engine and rev it some.

 

[NDgsx]

How many miles on it?

 

[amhalon]

thanks for the help...
i bought it with 68 and now it has 72, got the oil changed twice in between...
but is it possible(hopefully not )that im runnin a cylinder short, because on the way home tonight i heard a slight... 'slapping'...???

 

[95talontsi]

okay I have the problem too once I disconnect the battery, cause it resets the ecu and then engine has to "learn" or tune it's self, it always go a little rich to be safe.

 

[NDgsx]

Might as well replace the o2 sensor anyway, they start to crap out around 60k.

 

[amhalon]

thanks fellas, the help is much appreciated...