If I pull my 2008 into my garage right after starting, it stinks the whole garage up with what smells like a rich running motor. If I do this after driving an hour, it does not smell. Every part related to air/fuel has been checked a dozen times. No codes, short and long term fuel trims within range. Is it normal for it to stink until it's warmed up?
any engine will smell somewhat on warmup, they do run rich. there may be adjustments you can make, idk. with old cars, things are just worn, nothing works like new.
A gas smell is ways different than a cold engine exhaust smell? Which one is it? More to the point, the catalytic converter doesn't clean your exhaust until it gets hot so that's why it smells so bad if you aren't talking about an unburned gas smell.... During this period, the engine releases high levels of carbon monoxide, unburned hydrocarbons, nitrogen oxides, and volatile organic compounds such as benzene, formaldehyde, and toluene. These substances are linked to cancer, nerve damage, and respiratory problems. Because the catalytic converter isn’t yet working efficiently, these poisons escape directly into the air—making cold starts and short trips disproportionately harmful to both human health and the environment.
