Question about 1995 Oldsmobile Cutlass Supreme

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Engine 3.1 need engine diagram to locate parts such as; IAC, EGR valve, thermostat, and others ty for your assistance

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Hi

Please try this link that should get you started in locating the parts you have listed.

From that page, you will find links to other info about your vehicle!

Good luck!

Brian

Posted on Sep 06, 2008

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Please look at the following diagram to identify the engine sensors of RAV4 3RZ-FE.
25279369-wyb13ilgbx2wjezwdbqvnkml-1-0.png
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No electrical power goin to vaccum switchin valves on 4x4,97izuzu rodeo


which engine???? 2.6 or 3.2L , baring that, no exact answers.
we need to know which vavles there are many
VSV are used for many things.
EVAP
EGR. even 3 valves on just this.
even HVAC on some cars.
fast idle VSV
and others.
but you have a blown fuse.
most valves all have 12vdc keyon. and the PCM grounds them
to activate them on most cars.
best is to , point to it exactly and say this valve.
with a photo.

some called the IAC valve a VSV, its not .
but the IAC is controlled too by the PCM. (ECU) 4 pins this.
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Code p0507


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Dirty throttle body
Electric throttle control actuator incorrectly adjusted/faulty/damaged
Air leak on Intake
Poor electrical connection to the Intake Air Control valve

P0507 KIA Idle Air Control IAC System RPM Higher Than Expected

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bd52f9f9-ef51-43bd-8b5b-0a753314a8c7.jpghere is a picture of the iac valve, it is on the throttle body, there are a few connectors on the throttle body and the iac is one and the shape is diffrent from the others so if you locate the connectors you will find it, here is a pic of the iac valve hope this is helpful.

Jun 29, 2013 | Cars & Trucks

1 Answer

My engine light on codes are p1504 and p401i think it said for idle speed control


P0401 - Insufficient EGR Flow
EGR stands for Exhaust Gas Recirculation. It is part of the vehicle emmissions system, and is used to reduce combustion temperature and pressure to control Oxides of Nitrogen. There are generally three parts to the EGR system: the EGR valve, an actuator solenoid, and a differential pressure sensor EGR (DPFE). These things work together to deliver the correct amount of recirculation based on engine temperature, load, etc. The P0401 code means that OBD detected an insufficient amount of EGR.

Symptoms: You may notice drivability problems such as pinging (a.k.a. pre-ignition knock) when the engine is under load or the vehicle is at higher speeds. There may also be other symptoms.

Causes: A code P0401 most likely means one or more of the following has happened:
The DPFE (differential pressure feedback EGR) sensor is faulty and needs to be replaced
There is a blockage in the EGR (tube), most likely carbon buildup
The EGR valve is faulty
The EGR valve may not be opening due to a lack of vaccuum

Possible Solutions: In fixing this code, it is quite common for people to just replace the EGR valve only to have the OBD code return. The EGR valve is not always the culprit:
Use a vacuum pump and pull the EGR valve open while monitoring engine RPM's & DPFE voltage. There should be a noticable difference in RPM's with the EGR open
Clean out the EGR valve and/or tubing to remove deposits
Check the voltage at the DPFE, compare to specified values (refer to a repair manual for your specific model)
Replace the DPFE sensor (with a good quality / OEM one)
Replace the EGR valve


P1504 - Intake Air Control circuit malfunction
The problem likely is a defective IAC valve. You can check the valve by unplugging the IAC and checking the resistance between the 2 wiring pins, should be between 6 to 13 ohms. Also check the resistance from the pins to the IAC body, meter should read open circuit, any resistance reading from the pins to the IAC body indicates a short. I doubt that there is a problem in the wiring harness or PCM, it is possible and should not be ruled out, although it is not seen often.

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Hi and welcome to FixYa!

Have a look on the IAC (idle air control) valve. Cleaning it may help resolve the problem.

Hope this information was helpful enough and thank you for using FixYa! Have a good one!

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http://www.nissanpartszone.com/diagrams/large/D21U/nissan-hardbody-pickup-1995-1997-egr-parts-147a001.png

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Where is the egr valve on a 2005 dodge 1500 5.7L


The electronic EGR valve and solenoid assembly (3) is attached to the front of the right cylinder head (1). An exhaust gas routing tube connects the EGR valve to the intake manifold.

2efe0f8.gif

Disconnect electrical connector (1) from EGR solenoid (2). Remove two bolts (3) connecting EGR tube (4) to valve assembly. Remove gasket located between EGR tube flange and EGR valve assembly.

Remove two mounting bolts (2). Separate valve assembly (3) from cylinder head (1). Remove and discard metal gasket located between cylinder head and valve assembly.
The new EGR valve will come with a new metal gasket. You can reuse the smaller gasket for the metal pipe going to the egr valve as long as its not damaged.

TY for using Fixya; remember rated this post.

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1 Answer

Where are these valves located?


c0552ec.jpg7f30725.jpgEGR(top)IAC(3bottom views).EGR will be on the intake,IAC will be on the throttle body.

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