P CODES (POWERTRAIN) P1600 - P1699 P1639

Found 4 results

Code P1639 5 Volts Reference Circuit 2

P1639 Reading 5 Volts At Throttle Position Sensor With Truck Switched On And About 7.5 To 11.4 With Truck Running. Trying To Find Out If I...

Asked by Radjohn ·

24 ANSWERS

24 IMAGES

2002

Is it Safe to Drive Check Engine Light?

VIDEO

Is it Safe to Drive Check Engine Light?

Instructional repair video

Check Engine Light

Check Engine Light

Why is my check engine or service engine soon turned on? In this guide we talk about what this is associated with this notorious light, what it is used for and what you...

GM Dtc Code P1639

I Got A Check Engine Light On, Gm Code P1639 Five Volts Fer, Circuit 2. The Dealer Changed The Ac Pressure Sensor. The Light Came Back On...

Asked by Billy Miller ·

2 ANSWERS

2 IMAGES

2002

PONTIAC FIREBIRD

Obd2 Code P1639

Replaced Pcm. Car Start But Shuts Off Within 5 Seconds.

Asked by Kevin Jones2 ·

3 ANSWERS

2005

Obd Ll Code P1639

Where Would I Check "5 Volt Ref Circuit 2 "? I Do Not Know What That Means.

Asked by billmill5050 ·

1 ANSWER

2002

PONTIAC FIREBIRD

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