MY CAR HESITATES WHEN ACCELERATES, HAS BAD GAS MILEAGE. HAS NO POWER

2005 Kia Optima

Tiny

Gwalkerlhs

May, 13, 2012 AT 10:29 PM


My car hesitates when accelerates, has bad gas mileage. Has no power.I have replaced rentiontly the following parts in last month. The o2 sensor just out side from engine, idle control valve, Maf sensor, and tps sensor.

FOUND 16214 RELATED QUESTIONS

5 Answers

Tiny

fixitmr

May, 13, 2012 AT 11:09 PM

Have you checked timing? Any warning lights on?

Tiny

Gwalkerlhs

May, 13, 2012 AT 11:20 PM

The check engine lights is on, the code that comes up is( Maf sensor) to rich, and no I haven't check timing

Tiny

fixitmr

May, 13, 2012 AT 11:29 PM

Whats code #?

Tiny

Gwalkerlhs

May, 14, 2012 AT 2:37 AM

#0172

Tiny

rasmataz

May, 14, 2012 AT 2:48 AM

P0172 rich A/F mix

Probable causes of an engine running rich are as follows: 1. Excessive fuel pressure can be cause by restricted fuel return line

2. Defective Oxygen Sensors.

3. Leaking injectors and fuel pressure regulator.

4. Coolant temperature sensor out of calibration.

5. Restricted air intake system.

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