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P0103 code issue VZ LS1

Jett194

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Hi All
Chasing some help with a P0103 code issue on a VZ SS LS1
Car died driving down the freeway had it towed how, fuel pump wouldn’t prime, fuse and relay tested fine, power at the pump, replaced pump and still wouldn’t prime. Put a scan tool on come up with P0103 maf sensor voltage high, removed code and pump primes, starts and goes into limp mode and P0103 comes up again, remove maf sensor plug to see the difference, car won’t start. I replaced the maf sensor and have exactly the same problem. Any ideas I what else this could be?
 

BlackVXGTS

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The item below from the Holden VZ Service Manual may help you with your problem.
 

Attachments

  • 5.32 DTC P0101, P0102 or P0103 – Mass Air Flow Sensor Circuit.pdf
    220.1 KB · Views: 265

Jett194

New Member
Joined
Dec 24, 2021
Messages
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VZ SS
Thanks BlackVXGTS, plenty of things to try in that attachment.
Thinking it’s a short or bad earth somewhere.
 
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