Hello I have a 2003 dodge neon sxt 2.0. I have had check engine light with p0171 for a long time but never had any problem with my car. my problem started 2 weeks ago with a no-start condition but after 30-40 minutes I could start the car. So whenever engine is cold normally I can get it started but once it warms up, I can't get it started or sometimes is sputtering very much & the engine shuts down unless I push the pedal on floor. Then I should wait for an hour or start & start & start until my battery goes down & then get a jump from somebody. Also once it warms up, when I slow down on an intersection, the car stops & I have to push it to a side. Also car runs very bad & the acceleration is really bad. & Gas mileage is very bad too. so for first 30 mins it runs but very rough & bad and after that it stops.

They checked my battery, Starter & Alternator, all is ok. they told me it's from crankshaft or camshaft sensor, I replaced both but nothing happened. every mechanic says something, O2 Sensor, Mass Air flow, Air leak, Coil, Fuel pump, fuel filter, fuel pressure regulator & etc !!! I don't want to spend another extra dollar unless I know for sure what is the problem. I am really frostrated & pissed off.

If you are really expert & you believe on what you say, plz let me know. Also If you think it's from fuel pump or filter, so why I can start the car with a jump ?!

Thank you very much for your time & your help

 

timing belt

 

is my 2003 neon interference engine