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Form in a 2002 Ford Focus

Manual-Mecanica
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15 years 7 months before - 15 years 7 months before #13490 by manual-mecanica

Problems with a 2002 Ford Focus. Posted by manual-mecanica

Dear friends:
I'm having problems with a 2002 Ford Focus. When I accelerate abruptly, it seems to stall, and when it finally accelerates, it backfires.
The scanner is showing codes P1120 and P0122 (out of range).

I've already fixed the TPS issue, but the problem persists. I've checked with a scanner that can measure fuel pressure, and I've noticed that when I accelerate hard, the pressure drops suddenly, sometimes to zero, but these drops are instantaneous. What can I do to determine which part of the fuel system is failing?

Can anyone help me, please?

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Manual-Mecanica
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15 years 7 months before #13611 by manual-mecanica

Manual-mechanics' response on the topic Re: Problems with a 2002 Ford Focus

The fault is of the fuel pump. Ami happened to me but with the Couer

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