emj2006

iTrader: (5)

How do you make your car NOT run rich? My car is running rich like hell.

blkchevyz

need a little more info...

mods? has it been tuned? how old are your o2s? how do you know its running rich?

emj2006

iTrader: (5)

My mods are just CAI, flowmaster catback, and I believe it has been hypertech programmed with a 160 degree thermostat (since it just warms up to 160 of course). I know its running rich, because its been getting worse mpg, whenever I rev my car it puffs black smoke (Black smoke are hydrocarbons that are going through the exhaust unburnt). And my O2s are as old as dinosaurs(lol, I believe they havent been changed).

sdm1234

iTrader: (8)

tune it lean.

BlackBirdWs6Zzz

iTrader: (6)

OR, replace your O2 sensors.

Hey SDM......Nice car.

steez

o2's for shure.....t/a's for the win

Billy177

my guess would be the coolant sensor but check your 02's also

blkchevyz

yep probably just need new o2s... those few mods wont jack up the tune

Honda Hunter

iTrader: (8)

Before you go throwing things at it you need to find out why it's running rich. Run a freescan on it.

4ced

mine is kinda running rich too... i suspect its the o2's