Marvin Malinis (72.37.244.28) - Tue Jul 28 17:52:08 2009

Hi all,

I am having problems with my 97 Rav4...

It feels almost like a misfire at pretty much all speeds sometimes when the engine is cold or hot. more predominately when its cold. It somewhat of a stutter and it doesn't feel like the power kicks in right away. The bank 1 sensor 1 O2 sensore was causing my engine light to come on and what I thought was causing the vehicle to run rich.

What i've done to the vehicle: I've replaced the O2 sensor and changed the spark plugs. So far the stuttering has stopped... well for the most part. It did happen 1 time. The plug wires seem to be fine. I also tried filling it up a few times with premium gas and putting some fuel system cleaner in.

After all this and reseting the light I ran another diagnostics test only to find out the car is still running really really rich.

Does anyone know what is wrong with my Rav???

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