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Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Chevy
Satisfied Customers: 48691
Experience:  16 years of experience
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Drove my car 25 to 30 miles Sunday afternoon no problem; the

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Drove my car 25 to 30 miles Sunday afternoon no problem; the engine light had been on for a few days. It's been off and on as of late, sometimes with symptoms sometime not. After my drive, two and a half hours later the car won't start. It turns over strong no fire, codes po1280, 1515 and 1516 taken. Acts like fuel pump or relay not sure.

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Have you done any diagnostics for these codes yet?

Have you or do you know how to check fuel pressure, ignition spark, and injector pulse?

Customer: replied 2 months ago.
No I would even know where to start; can fix almost anything but finding it I the problem.
Customer: replied 2 months ago.
Can't get to the car right now; will contact if this changes.
Customer: replied 2 months ago.
Going to where the car is, what tool will I need

Here are the diag steps,

https://www.dropbox.com/s/xbu6h1ulytmiqga/1280.pdf?dl=0

https://www.dropbox.com/s/xhdctrsi4eqd20s/p1515.pdf?dl=0

https://www.dropbox.com/s/lnu72f5kn8ukphg/1516.pdf?dl=0

Can you do these steps? It is going to bea da throttle body or a bad accelerator pedal.

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