Australian

Fuel pump perhaps always having problems with mine will bother fixing more again next binge.

dakiwi13

ok so i took off throttle body. cleaned it out, replaced throttle position sensor. left it for a few days with batt disconnected and got back to it. now it runs great. cel is still on and the 02 sensor codes are still there, but all the other codes are gone. car runs super super rich. i went 65 miles and used up almost 1/2 a tank of gas

salimshah

This will overwork your cats and that can be expensive fix along with the $$ going out of the tail pipe.

Salim

Moisture

I think you need to remove your fuel injectors and have them inspected replaced/cleaned

Margate330

I wish I could give this 2 likes! lol

dakiwi13

had the sensors tested and the cats tested. it's the cats. 2 of the 3 are bad

Moisture

Dude. Your cats are bad because your car is running to rich and probably also consuming oil. That's not the root of the cause.

dakiwi13

so i replaced cats and it ran worse than before. now it bogs down like crazy. CEL flashes when i step on the gas. auto parts stores are closed so i can't get the codes off of it. with the new cats on, there's a terrible burning smell now

dakiwi13

it will not take off for at least 5 seconds, and will rev really high in order to just get to 20 mph. when changing gears it revs all the way to 3500 rpms

Margate330

Hi dakiwi13,
To get thru this you need a proper scanner that can read codes and supply you with live data.

dakiwi13

i've had that done

Audiqv8

That doesn't sound good. Since you replaced the 'Cats' did you plug the AFR/sensor back in and are the wire(s) routed correctly? Did you verify that the rest of the exhaust system is not plugged up? I had an exhaust leak and used a shop vac to pressurized the system. I attached the shop vac to the tail pipe by taping the hose with duct tape. I then turned it on. It only took less than 10 seconds to find the leak. How did it go from running great after the last repair to running like crap again????

carguy07

Who tested and how? That's not a parts store thing.

Xavier56

Hi had the almost the same nightmare your having - changing all the parts you did.
I found out you need to have a Code Reader that can read engine live data like STFT and LTFT on both banks
You can see which one has a issue or both.

Then like others said I replace the O2 or Air Ratio sensors in the Pipes -
I had one Fake one that cause issues and a Second one that was New was Bad.
Just because it is brand new does not Guarantee it is good.
Good Luck

dakiwi13

a mobile mech came to my house and ran live engine data on it. i have pics on my phone of the data