Help! I think I'm running rich

[farewellregret]

Originally Posted by Wonko The Sane

I guess it would help if I actually answered the question, sorry!

If you have a stock ECU/injectors and you're running rich, it most likely means that the ECU isn't hearing something from the emmissions/oxygen sensors and is putting in more fuel to compensate.

My guess is that you have a standalone or piggy-back fuel system, though, which means you would have to get readings from the oxygen sensors (or EGT), and tweak the fuel map to give you less fuel in the required areas. That will require a laptop and the software to interface into the fuel system, as well as some dyno time (for best results).

Cheers!

When I first got the car the 02 sensors where disconnected, I ended up replacing them both and noticed better gas millage. It went from 17mpg highway to about 19mpg city. However I still think it's running a little rich. I'm in west Texas any ideas of where to go to have my car tuned?

[idheaton]

I can't help on the running rich/lean question but I would definitely make sure of which engine you have 3.4 or 3.6 because if you paid for a 3.6 swap and only got the 3.4 you got ripped off.

[farewellregret]

Originally Posted by idheaton

I can't help on the running rich/lean question but I would definitely make sure of which engine you have 3.4 or 3.6 because if you paid for a 3.6 swap and only got the 3.4 you got ripped off.

I used my engine serial number to determine it's a 3.4, thanks to some links I found and some that you guys suggested I look at. I'm pretty happy with it though, I suppose it's all the extra mods that help.