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Engine like on! Received P042 error. - 4Runner Toyota Cars & Trucks

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Please show me the code p0705 sensor


Engine code po705 means your computer also known as the ECM has received a error code coming from your transmission.

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The car error (failsafe engine mode) put coolant in and received this error. help.


the vehicle computer will go into fail safe mode when there is a problem with the vehicle. In failsafe engine mode you should go straight to a garage for repairing, usually is amajor problem

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Engine code p0420 p0430


catalytic converter issue

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Light on dash shows amber engine


Depending on the year of the car. 96 and newer?..... That light means the engine computer has received an error code. Any local parts store will read the code for free and tell you what you need to replace... In most cases it will be a bad sensor or an ignition misfire.

Mar 31, 2013 | Cars & Trucks

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Put on o2senor on 3days ago,and check eng.light came on.had it checkand the p042 code came on,what else can it be.


-Check for exhaust leaks at the manifold,pipes, and catalytic converter ( replace if needed) -Check the o2 sensor down from the one you replaced could be the other one malfunctioning

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I have a 2002 kia sedona. The engine light came on autozone said its a incorrect purge flow how can i fix that ? thanks in advance Jose...


sometimes you can get this error if the gas cap is not on correct. Make sure your click the cap at least 3 times. I have had this on my exact same vehicle, received the purge error and it was the gas cap.

Sep 12, 2009 | 2002 Kia Sedona

1 Answer

95 caddlilac seville STS getting horrible fuel economy.


You will see shorter service life of those O2 sensors with that kind of mileage. I would also suspect that the injectors are seriously worn if original. a few things to also look at that tend to throw 02 codes:

1: MAP OR MAS sensors,
2. worn timing chain
3: Restricted air intake (filter, or leak between MAS sensor and Intake)
4: Engine coolant thermostat (if the engine never warms fully, the mixture will be overly rich)

The O2 sensors tend to get wiped out by too much or too little fuel, too much in your case. you have to find the problem of fuel delivery or it will kill any O2 sensors you replace.

Have you performed a compression check? in some cases the piston, or rings have failed and allowed a large amount of fuel to enter the crankcase oil.

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1 Answer

2002 grand caravan sport


The check engine light also monitors the deairate system of the gas tank. On the undercarriage (below the drivers seat) are 2 rubber tubes which get briddle over time check those for cracks. If you don't find any it is probably necessarry to empty the gas tank complety, make sure the engine is cold and pressurize the whole fuel system with smoke in order to find that leak.

A blinking air bag light might indicate a broken insulation on one of the wires of the wire harness wrapped around the steering column(inside a black plastic cover). To access it it would be necessarry to remove the steering wheel.

Jul 10, 2008 | 2002 Dodge Caravan

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