Question about 1999 Toyota Tacoma PreRunner

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AFTER REPLACING SWITCH AND COMPUTER ON A 1999 TOYOTA TACOMA P1780 CDE STILL COME BACK

IVE REPLACED SWITH AND COMPUTER AND STILL THE CHECK ENGINE CODE P1780 APPEARS WHAT OTHER PROBLEMS COULD IT HAVE?

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The codes need to reset with a diagnostic plug in device that may only be located at a dealers service center.

Posted on Mar 17, 2014

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6ya6ya
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Posted on Jan 02, 2017

  • 1861 Answers

SOURCE: 1999 toyota tacoma Sr5 won't start

Check for fuel pressure when starting. Fuel pumps have a check valve in them that keep fuel in the rail at the injectors. If the check valve fails, the pump has to pump fuel all of the way up to the engine. Same thing with hot no-restarts. Fuel pump.

Posted on Sep 09, 2008

  • 2 Answers

SOURCE: 1999 toyota camry

Take it to autozone and have them to pull a code on it.It sounds like O-2 sincer

Posted on Dec 07, 2008

  • 42 Answers

SOURCE: 2005 toyota tacoma check engine light

pull the E.F.I. fuse located under the hood on the drivers side, if there is more than 1 efi fuse pull them both along with the E.T.C.S. fuse (if there is one) for 1 minute or so. That should do it

Posted on Dec 23, 2008

  • 184 Answers

SOURCE: How to reset the ''Check Engine'' light on a 1999 Toyota 4-Runner?

http://www.obd-codes.com/faq/reset_obd_codes.php

Posted on Apr 04, 2009

Pointnino
  • 14 Answers

SOURCE: check engine light on 2003 toyota tacoma, O2 sensor?

An O2 sensor code is a tricky one. It could mean SEVERAL different things, and I know how bad it sucks to hear this, but your best bet is to take it in and have a diagnostic ran on it at either a dealer or a good mechanic shop with a computer they can hook up to it. I had an "O2" code come up a while back on another car I used to have, and literally spent weeks and hundreds of dollars trying to fix it, and never did. Finally out of desperation took it in, paid the $90, and they found the problem and fixed it in like 30 minutes. Something I would have never even thought of was causing it (can't remember off the top of my head). After that I stopped wating time and money on check engine lights. One comes on in my car, I take it to have it ran for free at and auto parts store just to make sure it's not a loose gas cap or something, just to get an idea of what I'm looking at, then go and make an appointment to have to hooked up to a diagnostic computer to track down the problem. Good luck, and hope this helps save you some time and money.

Posted on Apr 05, 2010

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4cly tacom w/auto trans won't stat unless i jiggle shifter.


Check your neutral safety switch by using a OBD II code reader. This switch prevents the truck from starting unless the shifter is in park or neutral. I think the code you're looking for is P1780.

Mar 09, 2014 | 1996 Toyota Tacoma

1 Answer

Park neutral position switch


Yes I would agree the trans selector switch has failed, provided the wiring is good.
The license plate lights would be on a different circuit tied into the regular tail lights.

Feb 12, 2014 | Toyota Cars & Trucks

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How to reset engine lite in dash


Check engine light comes on and off, these are indication that there is some error code stored in your vehicles ECM. The engine module computer needs to be scanned. These will give the code and as per the error code the further problem can be detected and confirmed. The engine light indicator blinks or remains steady on dash when engine computer noticed any problem with any engine electrically operated components.


For more help, I suggest you to refer the help links provided below. These will let you know more about which areas to look, check, when there is engine light coming up on dash panel.

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Click the link below: -------


Check Engine Light Reset Procedure?

http://whoisbyme.blogspot.in/2012/06/check-engine-light-reset-procedure.html

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http://technoanswers.blogspot.in/2012/02/check-engine-light-flashing.html

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http://whoisbyme.blogspot.in/2012/06/2005-chevy-impala-service-vehicle-soon.html

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http://whatisbyme.blogspot.in/2012/05/2007-toyota-highlander-hybrid-yellow.html

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1999 Toyota Tacoma: Check Engine Light Read Code P0171?

http://whatisbyme.blogspot.in/2012/05/1999-toyota-tacoma-check-engine-light.html


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http://whatisbyme.blogspot.in/2012/05/car-runs-fine-but-check-engine-light-is.html

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http://howtobyme.blogspot.in/2012/01/check-engine-light-with-codes-p2195-and.html

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http://schematicsdiagram.blogspot.com/2011/12/how-to-read-codes-from-check-engine.html

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http://schematicsdiagram.blogspot.com/2011/12/vehicle-smog-test-failed-due-to-no.html

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http://schematicsdiagram.blogspot.com/2011/12/car-jerks-while-going-uphill-and-check.html

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These details will help.

Thanks.

Nov 28, 2012 | 1999 Acura CL

1 Answer

I drove the jeep the day before and it was fine the next say i get in and the check engine light came on and was flashing and it was idleing (shuttering) what could this be?


To confirm the exact fault,the error code stored in engine computer module has to be retrieved.
But as why check engine light came up,for that issue there are few help link with solutions to correct the issue.========
Click the link below:---
After getting car washed, check engine light is ON and key less entry not working, tried reprogramming. Also car shows fuel pressure? http://schematicsdiagram.blogspot.com/2011/12/after-getting-car-washedcheck-engine.html
------------How to Read Codes from Check Engine Light? http://schematicsdiagram.blogspot.com/2011/12/how-to-read-codes-from-check-engine.html
------------Check Engine Light Reset Procedure? http://whoisbyme.blogspot.in/2012/06/check-engine-light-reset-procedure.html
------------- Check Engine Light ON? http://whoisbyme.blogspot.in/2012/06/check-engine-light-on.html
----------- Intermittent Check Engine Light? http://whoisbyme.blogspot.in/2012/06/intermittent-check-engine-light.html
---------- Service engine soon Light Turned OFF after Jump Start? http://whatisbyme.blogspot.in/2012/06/service-engine-soon-light-turned-off.html
---------- 2005 Chevy Impala: Service Vehicle Soon Warning Light? http://whoisbyme.blogspot.in/2012/06/2005-chevy-impala-service-vehicle-soon.html
--------- Malfunction Indicator Light ON http://whoisbyme.blogspot.in/2012/06/malfunction-indicator-light-on.html
--------- Car jerks while going uphill and Check engine light is ON?

http://schematicsdiagram.blogspot.com/2011/12/car-jerks-while-going-uphill-and-check.html

------------


Toyota Camry Check engine light flashes while driving? http://schematicsdiagram.blogspot.in/2012/02/toyota-camry-check-engine-light-flashes.html
----------1999 Toyota Tacoma: Check Engine Light Read Code P0171?


http://whatisbyme.blogspot.in/2012/05/1999-toyota-tacoma-check-engine-light.html
--------
2007 Toyota Highlander Hybrid: Yellow Check Engine Light ON dash? http://whatisbyme.blogspot.in/2012/05/2007-toyota-highlander-hybrid-yellow.html

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--------These will help.Thanks.

Nov 22, 2012 | 2002 Jeep Grand Cherokee

1 Answer

My 1999 tacoma i bought has a cold air intake and its throwing a check engine light but it drives fine??? Help


drive it on over to oriellys auto parts and ask them to use thier scan tool (most parts stores can do this for you) itll tell you what part is causing the code to be thrown. however 9 times out of 10 when you have a check engine light on and the car still drives fine its the O2 sensor. on a side note most cold air intakes are a gimmick. most vehicles come stock with cold air intake from the factory. the issue ive noticed most with cold air intakes that use oil is they get over oilled and this cloggs up the IAC valve, TPS sensor, and throttle body.

Mar 13, 2012 | 1999 Toyota Tacoma PreRunner

2 Answers

I HAVE A TOYOTA COROLLA 2003,CHECK ENGINE LIGHT, CODE P1780,HOW CAN I FIX IT


P1780 Is the indication that the neutral safety switch has failed. It is mounted on the side of the transmission where the linkage is attached. replacement is the normal fix. This part is a bit pricey and you might get lucky looking in a salvage yard for a used one.

May 26, 2011 | 2003 Toyota Corolla

1 Answer

1999 toyota tacoma 2.7L check engine light came on and showed a code for a bad tps. I replaced the tp[s and the truck runs worse.


Sounds like a mass air flow sensor. Sometimes when the TPS is out the MAF throws a code, and Sometimes when the MAF is out the TPS throws a code. They correspond with eachother and its tricky to tell. What kind of problems are you having?

Sep 30, 2010 | Toyota Tacoma Cars & Trucks

1 Answer

2001 Toyota Tacoma Engine Miss


Start with the plug wires.You may need new plugs but my experiance is that the plug wires are the first to go.

Oct 20, 2009 | 1999 Toyota Tacoma PreRunner

1 Answer

1780 code


P1780 Park/Neutral Position Switch Malfunction (Only For A/T)
This code is related to a malfunction with the park neutral position switch, it's located on the transmission.
It maybe easier to get a Chilton manual from the autoparts store to locate the sensor/switch. The book runs about $20.
Replacing the switch/sensor may resolve the reverse light problem also.

Apr 21, 2009 | 1999 Toyota Camry

1 Answer

Total loss of power


need the code number that was set on your computer when the check engine light came on. Autozone'll tell you the number. Often the code is self explanatory.

Jan 07, 2009 | 1999 Toyota Tacoma PreRunner

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