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1993 toyota camry instructions to change fuel pressure regulator

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Hi Jeffrey,
This quite a complicated and dangerous procedure as you can imagine since you are dealing with pressurized inflammable fuel. I am sure you are aware of this, Having said that, if you are up to it, I would strongly recommend that you avail yourself of a HAYNES manual . You need to go trough most of the Chapter 4 and the section that describes replacement of the fuel regulator is on page 4-16 section 13. I have attached a picture of that page to illustrate.
Good luck and please be safe.
Kiri
1993 toyota camry instructions to change fuel pres - replace fuel pressure regulator-ck45viiscr2u2cdhurg3r20j-3-0.jpg

Posted on May 07, 2017

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Posted on Jan 02, 2017

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1 Answer

Runs for 4 seconds then floods


Check first the fuel pressure regulator and its vacuum switching valve (VSV). See here p220 and 240


http://www.turboninjas.com/camry/eg2.pdf

Mar 09, 2013 | 1993 Toyota Camry V6

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I don't think the EFI relay is at fault. Other things would be dead if it was, including the starter. See here p177 to test fuel pressure, which may be too low if the fuel pump itself or the pressure regulator is faulty.

http://www.turboninjas.com/camry/eg1.pdf

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hi there when was the last time you had fuel filter changed ?.
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Fuel filter pkugged? Fuel pressure ok? Cold start switch bad?

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1 Answer

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Mar 22, 2009 | 1993 Toyota Camry V6

1 Answer

Last time I drove the car it started idling very


Just a guess but if you don't have an igniton problem, it may be a bad fuel pressure regulator. If the regulator diaphram fails, the engine will pull raw fuel through the vacuum line that goes to it. Also if it fails to bypass, excessive fuel pressure will flood the engine. Check the rail pressure to spec.

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1 Answer

How much psi is coming from the fuel pump


#1

38.0 - 44.0
Note

Y251
#2

30.0 - 37.0
Note

Y252
Y251: Pressure (PSI) is measured at cold start injector with pressure regulator vacuum disconnected.
Y252: Pressure (PSI) is measured at cold start injector with pressure regulator vacuum connected.

Jan 31, 2009 | 1993 Toyota Camry V6

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