Question about 1994 Toyota 4Runner

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I have a 94 4runner that is flashing a 71 code. can anyone tell me what is broken?

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Code 71 is EGR or The EGR VSV. The ufo delie next to the egr. Might even be the temp sensor inside the egr. I would replace all three. Or even check your vacuum lines, they may be routed wrong!

Posted on Jun 09, 2013

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No but I read that if the code is flashing it is serious and you should call a mechanic. They know the codes and how serious they might be. Better to error on the side of caution.

Posted on Sep 08, 2009

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1 Answer

Fuel cal-pak incorrect or missing


52 is a faulty knock sensor signal. The connection there may be loose or broken. 71 is an EGR temperature signal fault. Again the connection may be loose, or the EGR temp sensor faulty, or the EGR vacuum switching valve faulty.

May 10, 2014 | 1993 Toyota Camry V6

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?JCB FAULT CODES LIST


P0087 (flashing code 227) shared sump low pressure fault (for pump without pressure supply)
The main fault symptoms
• Engine severe vibration.
• idling unstable
• Output Fall
• exhaust smoke
• It may be too large output
P0088 (flashing code 118) shared the tank pressure is abnormally high (first or second stage)
The main fault symptoms
• Engine severe vibration
• idle instability
• Output Fall
• channeling gas engine failure
• exhaust smoke
• It may be too large output
P0089 (flashing code 151) shared the tank pressure failure (for pump pressure supply is too large)
The main fault symptoms
• Engine severe vibration
• idle instability
• Output Fall
• channeling gas engine failure
• exhaust smoke
• It may be too large output
P0090 (flashing code 247) SCV drive system open, + B short circuit or shorted to ground
The main fault symptoms
• Depending on the open / short situations, there may be an engine stall and / or launch
Machine channeling gas.
• exhaust smoke
• Output is too large
P0107 (flashing code 71) atmospheric pressure sensor circuit input low (open or shorted to ground)
The main fault symptoms
Due to spare the equivalent altitude 2000 m (6562 ft)
• exhaust smoke at high altitude.
• insufficient output at low altitude
P0108 (flashing code 71) atmospheric pressure sensor circuit input high (+ 5V shorted)
The main fault symptoms
Due to spare the equivalent altitude 2000 m (6562 ft)
• The high altitude exhaust smoke
• lack of low altitude output
P0112 (flashing code 22) intake air temperature sensor fault (low voltage fault, earth fault, short circuit)
The main fault symptoms
• When cold starting, may exhaust white smoke.

More here http://truckmanual.weebly.com/jcb-fault-codes.html

on Dec 20, 2016 | Cars & Trucks

1 Answer

Airbag light code 71


Air Bag Code, Symptom 71, Passenger Presence System Invalid Serial Data. System is not getting reading from pass side seat occupant detection sensor. May be able to calibrate

Apr 10, 2014 | 2000 Toyota Tundra

1 Answer

On my 1994 Toyota V-6 3.0 Liter 4x4 Pickup. Have CEL codes 52 and 71 what should I do? Was going to just go with the Knock Sensor but after looking into it its going to be a real pain and expensive for...


with code 52 it could be the knock sensor or an O2 sensor and code 71 can have slew of problems being temp sensor, clogged vacuum lines or broken vacuum line, bad egr valve..just tons of time and money. You'd be better off taking the vehicle to a local mechanic that can do a real time scan on it while it's running, He should be able to pin point your problem. You've pulled the codes and they pointed you in the general direction but unless you're willing to spend $500 - $600 dollars just throwing parts at it to see what fixes it, you're better off letting a pro tell you what it is and pay him the $100 for the diagnostic. then fix it yourself.

Oct 29, 2013 | 1994 Toyota Pickup

1 Answer

Check engine light flashes 4-3-7-1 what will be the code number


I would guess 2 codes--43 and 71. 43 says starter signal not reaching ECM. Are you push starting the truck? If not, might be a bad wire from the ignition switch to the computer.
71 is low EGR gas temp. Could be the sensor signal is not reaching the computer but more likely the EGR valve is not opening. May be stuck/clogged, has torn diaphragm, or is not getting vacuum. I believe the vacuum is controlled by a thermal valve. Check to see that the thermal valve is getting vacuum from the intake manifold and opening to deliver vacuum to the EGR valve when the engine reaches operating temp.


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Dec 04, 2011 | 1991 Toyota Pickup

1 Answer

1994 4Runner V6 (non-4wd) error code 71


2.4L code 71 - EGR Gas Temp Sensor
3.0L code 71 - EGR Gas Temp Sensor
There is a test procedure to tell if bad sensor or wiring problem, can email diagram to you if like need an email address to send to

Feb 08, 2010 | 1994 Toyota 4Runner

1 Answer

Ford engine numbers for Australia


the date codes pl mean 1974 jan i cant find the model codes but in 1974 the model code for a utility (i think you guys call them trucks ) is 45371 ending in 71 and the engine code k is a 5.8 litre 2v high compression enginehope this helps

Oct 22, 2008 | 1966 Ford Mustang

1 Answer

Error codes 71&72 for old delta 88 royale


take key to dealer and check resistance. if key is OK probably wire is broken in column from ignition or ign switch is bad

Aug 11, 2008 | 1992 Oldsmobile 88

1 Answer

1996 gmc z-71 4 wheel drive


if the light just flashes then you blew a fuse check all the fuses in the cab and in the engine bay, if none blown, then you have a broken wire

Jul 16, 2008 | 1996 GMC Sierra

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