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The following codes have been read from the computer...P0122, P0741, P0174 and P0300 while driving, the engine acts like it is misfiring, with a little hesitation when accelerating. A tune-up was done last year with plugs and wires. After getting the code P0122...throttle positioning sensor, it was replaced, but the above continues to happens. P0300...fuel to rich and not being burned correctly, may have to do with the ignition coils...yes? If so, do I need to change out all the coil packs or could it just be one that's gone bad?
It's located under the air filter housing. pull up the filter housing and you will see "Trans" written in red (at least that is how it is on my 97 sls).
I too am have the same issue. And my question is...is it the fuel filter or something that has to do with the fuel pump? Please keep in mind that my car starts and run fine. But there are times when it seems that its not getting enough gas.
The fuel filter is located underneath near the back passenger door on the driver's side.
When the gas gauge reaches a quarter of a tank, it travels in the opposite direction. What can the issue be?