SOURCE: idle low then hi, and gas smell, and bad gas mileage
This should show up easily on the ECU diagnostics computer at a mercedes dealership. Basically your fuel mixture is way too rich causing your car to be heavy on gas, have a raw gasoline smell, and not run right. Something like this can be caused by a defective oxygen sensor (but that usually produces a check engine light) or it might even be a defective ECU. There is really not way of knowing for sure until you do a proper diagnostics where they hook up your exhaust at the same time and do an emmission test. In most cases it's some sensor that needs replacing.
SOURCE: fuel leak, strong gas smell inside and outside of car
when you look for a fuel leak, make sure the engine is running. the fuel lines will be pressurized and you are more likely to spot the leak. if you see fuel squirting, be careful since it under a lot of pressure. it might look like a single strand of a spider web. also, you should wear eye protection since gas in the eye would be a bad thing. needless to say, don't light a match or lighter for light to find the fuel leak. since gas is explosive, you probably should take it to a shop if you can't fix it. it could be dangerous if gas drips on a hot part. fuel vapors are explosive too.
SOURCE: Car Heater smells strange
from he Popular Mechanics site if the smell in your car is like maple syrup:
(1) SMELLS LIKE:
MAPLE SYRUP
WHEN: After the engine has warmed or possibly even after it's shut off for a few minutes.
THE CULPRIT: Coolant containing sweet-smelling (but toxic)
ethylene glycol is leaking from somewhere. It could be coming from a
radiator or heater hose, a failed intake manifold gasket or cylinder
head. It might be coming from a leaky radiator cap or the radiator
itself, especially if you smell it outside the car. A strong odor inside the passenger compartment probably means a bad heater core.
SOURCE: car is jerking engine light is flashing and smell gas
With modern cars it is bad when the engine light just comes on and the vehicle does something very different. It should not be driven. If the car is smelling of fuel and jerking it is because it's miss-firing (i.e. one or more cylinder is not getting spark but is getting fuel). This can be anything from electrical/electronic to mechanical like a broken rotor cap (as an example). The good thing, is that the light is coming on and a mechanic can check the ECU for error codes. Alternatively, you can buy or barrow one your self and check it out on your own (I think even certain auto-part stores will check it for you as long as you get in the zone;). 1996 is a good year for that since that is when OBDII started and all vehicles started using the same port to check for issues.
SOURCE: Grand am smells like gas inside the car
I would definatly recheck the regulator to make certain you do not have any leaks.
But to be clear, you are smelling gas and not exhaust?
Also, is you cowl seal in good shape, not missing or damaged in any way?
Let me know.
Regards,
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also my check engine light is on
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