1998 Mazda 626 engine will not accelerate

1998 MAZDA 626
180,000 MILES • 2.0L • 4 CYL • 2WD • AUTOMATIC
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ROBERT1949
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  • 4 POSTS
Engine starts and idles but will not accelerate. I replaced the throttle body with 2 sensors (used), the mass airflow sensor, and the 02 sensor (used).
I am still getting 6 codes PO171, PO113, PO102, PO715, PO708, PO135.
I would first like to get the engine to accelerate and then fix the other codes.
Please advice.

Robert
May 12, 2014 at 9:56 AM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
PO102 - Mass Air Flow (MAF) Circuit Low Input

P0113 - Intake Air Temperature Circuit High Input

P0135 - Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

P0171 - System too Lean (Bank 1)

P0708 - Transmission Range Sensor Circuit High Input

P0715 - Input/Turbine Speed Sensor Circuit Malfunction

You have a bunch of things going on here. However, one bad part can cause a few other codes to set. Does the engine rev at all?
May 12, 2014 at 10:08 AM
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ROBERT1949
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  • 4 POSTS
Does not rev
May 12, 2014 at 3:47 PM
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ROBERT1949
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  • 4 POSTS
Doesn't rev
May 12, 2014 at 3:48 PM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
Have you checked the throttle position sensor (TPS)?
May 12, 2014 at 5:52 PM
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ROBERT1949
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  • 4 POSTS
i replaced throttle body with sensor
May 13, 2014 at 5:27 PM
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JACOBANDNICKOLAS
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  • 110,175 POSTS
I believe you said it was a used sensor. It may be bad.
May 13, 2014 at 6:42 PM