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The service engine soon light comes on?

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,913 POSTS
See if it will reset. Also, try a scanner to reset. If there are no codes, the dealer is most likely correct.
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Wednesday, August 12th, 2020 AT 2:39 PM (Merged)
Tiny
TERRISIE
  • MEMBER
  • 3 POSTS
  • 2002 DODGE STRATUS
Engine Performance problem
2002 Dodge Stratus 4 cyl Automatic 62,000 miles

the code is saying that it has something to do with the gas. Gas cap is on tight. Made sure that I fueled up twice with really good Vpower gas because I thought maybe I had gotton some bad gas. Put fuel injector cleaner each fill up.

Problem: Light is still on after being reset and car sputters upon eceleration. Especially a quick eceleration. It doesn't have the power.
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Wednesday, August 12th, 2020 AT 2:39 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
What's the DTC or P code/s that popped up?
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Wednesday, August 12th, 2020 AT 2:39 PM (Merged)
Tiny
TERRISIE
  • MEMBER
  • 3 POSTS
I could give myself a kick, but I didn't see it. The gentleman that was using the device just said that it had something to do with the gas or gas cap.
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Wednesday, August 12th, 2020 AT 2:39 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be one of the following below

P0440 Evaporative Emission Control System Malfunction

P0441 Evaporative Emission Control System Incorrect Purge Flow

P0442 Evaporative Emission Control System Leak Detected (small leak)

P0443 Evaporative Emission Control System Purge Control Valve Circuit Malfunction

P0444 Evaporative Emission Control System Purge Control Valve Circuit Open

P0445 Evaporative Emission Control System Purge Control Valve Circuit Shorted

P0446 Evaporative Emission Control System Vent Control Circuit Malfunction

P0447 Evaporative Emission Control System Vent Control Circuit Open

P0448 Evaporative Emission Control System Vent Control Circuit Shorted

P0449 Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction

P0450 Evaporative Emission Control System Pressure Sensor Malfunction

P0451 Evaporative Emission Control System Pressure Sensor Range/Performance

P0452 Evaporative Emission Control System Pressure Sensor Low Input

P0453 Evaporative Emission Control System Pressure Sensor High Input

P0454 Evaporative Emission Control System Pressure Sensor Intermittent

P0455 Evaporative Emission Control System Leak Detected (gross leak)

P0456 EVAP Leak Monitor Small Leak Detected
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Wednesday, August 12th, 2020 AT 2:39 PM (Merged)
Tiny
TERRISIE
  • MEMBER
  • 3 POSTS
I'm pretty sure it's the PO455, I remember seeing now.
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Wednesday, August 12th, 2020 AT 2:39 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
What you need to do here is get it smoked tested.
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Wednesday, August 12th, 2020 AT 2:39 PM (Merged)
Tiny
MARIAANDRETTI
  • MEMBER
  • 1 POST
  • 2002 DODGE STRATUS
  • 74,150 MILES
For 8 month now the light is on, my DEQ was due in May 2011, now it's September 2011! New gas cap, better gas and engine cleaner twice, new hoses, last week new charcoal filter and still, after driving 25 miles the light came back on! Help now.
What else could be wrong with it? What else to look for? Code was 442 and 456.
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Wednesday, August 12th, 2020 AT 2:39 PM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,945 POSTS
What's a "DEQ"?

To find small leaks in the evaporative emissions system, rent or borrow a smoke machine. That will inject white non-toxic smoke under two pounds of pressure into the system, then you can look for where the smoke comes out. Small leaks are impossible to find any other way.
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Wednesday, August 12th, 2020 AT 2:39 PM (Merged)
Tiny
CROCKETTB81
  • MEMBER
  • 1 POST
  • 2002 DODGE STRATUS
  • 145,000 MILES
It has a rough start, and now all the battery, oil, brake, and service engine light will not go off.
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Wednesday, August 12th, 2020 AT 2:39 PM (Merged)
Tiny
CARADIODOC
  • MECHANIC
  • 33,945 POSTS
Check the charging system. Use an inexpensive digital voltmeter to measure battery voltage while the engine is running. It must be between 13.75 and 14.75 volts. If it is low, the system can be diagnosed by measuring the two voltages on the two small wires or terminal nuts on the back of the alternator while the engine is running.
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Wednesday, August 12th, 2020 AT 2:39 PM (Merged)

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