I am throwing these three codes and cant afford co pay on warranty. Please help. P0326,p0011,p0420. The car is running and getting 37 mpg. Has a small tapping noise that i have been thinking may be knock sensor also.

It acts like it is starving for fuel but has new fuel pump.

I've had the car for about 3 months now. When I bought the car I could tell they're was a bit of a hesitation anytime you started to take off from being at a stop. The other big issue I've had is anytime I pump gas in the car rather it be Full tank, half tank, etc. it will hesitate when I crank it back to the point to where I have to press the gas down in order to stop it from cutting off. It will crank right back but as long as I drive off it continue to give it gas it will go away in a few minutes. The check engine light also turned off periodically but recently has stayed on and the the las… Read complete

I bought the car after it has been sitting for a year. Put a new ignition coil and battery and it started right up. Ran ok for a couple days. Now it won't start. I put new plugs and wires, cam shaft and crank shaft sensors, fuel filter and fuel pump. I don't hear the fuel pump engaging and I have check all fuses. I am at a loss, any ideas would be appreciated.

My car vibrates way too much at idle speed. I've been having this problem for quite a long time now and, when scanning it, there is no error indicated. I've changed the injectors, fuel filter, spark plugs and its wiring, but the vibrations are still there. When I start driving it, the vibration luckily disappears.

The gas pump stops when the gas is being pumped I can hear the gas coming back up and some times spill out.

Vehicle runs rough intermittently some times cuts out and doesn't start first time has; codes 1 oxygen sensor bank 1 primary' code 2 fuel regulator control circuit open; after clearing these codes the only code that appears system too rich bank 1 all around same issue l check with suppliers and ask about fuel regulator and they identified it as a part that l saw in tank when l replaced fuel pump but it does not have any wiring to and the word circuit l would think suggest control by computer

Fuel filter and pump replaced by dealer and now the gas gauge is stuck on full.

After I had my Hyundai Accent serviced, I noticed it was using nearly 4 times the fuel it should be. Centre told me they changed the in-tank fuel filter during the service. After returning the car they said it was a sensor and needed replacing. Still no change in excessive fuel usage.

Hard to start when cold. Slight backfire. Poor acceleration when in low revs. All of this mostly goes once warm. If I fill tank up car has same problems until I have driven 90odd kilometres. Have changed alternator, o2 sensor, plugs, leads, fuel filter & pump, tank off & cleaned, charcoal box inspected, new battery, cleaned throttle.