Question about 1998 Toyota 4Runner

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98 four runner 3.4/v6 --check engine light blinks after a short (2-4min) drive @ 70mph-slow down and the light will go out--I don't feel any difference in the engine when the light is blinking (such as missing, popping, etc--I have changed plugs, wires and one time we got a code for a misfire on 2 and 5, so I changed the coil pack on # 5 cyl which also fires #2--but the light still blinks after that--??

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  • Toyota Master
  • 448 Answers

Try replacing the spark plug wires set.

Posted on Aug 05, 2017


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Posted on Jan 02, 2017

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SOURCE: toyota 4 runner 1998, recurring

Hi! Pretty much a PCM (powertrain control module) problem. The PCM has connectivity on all electrical current that runs inside the car including the engine, transmission, accessories, etc. If the PCM is faulty something will surely fail, one good example is the bad reading on the scanner. Please try to swap PCM and see how it goes. Hope this helps and thank you for using FixYa!

Posted on Oct 06, 2010

  • 78267 Answers

SOURCE: toyota 4 runner 1998, recurring

It is very possible that this is a software problem, this car uses a system that went into use in 1996 and is the 1st electronic engine control system (known as OBD2) that has the ability to monitor all of the systems that control pollution, misfire monitoring is one such monitored part in the system, software was written to determine when a individual cylinder fell out of the acceptable tolerance of power output and thus triggered a code to be set and the check engine light to come on, many car ,makers including Toyota made the tolerance's to tight and this triggered a misfire code when no real problem exists, to find out if a reprogramme of the PCM (Powertrain Control module) is needed you must contact a Toyota dealer and they can run the symptom on the computer and see if anything shows up, if no need of a reprogramme shows up to fix this issue you do have a problem somewhere in the system whether you fell the misfire or not, the reasons for this can be dirty fuel injectors, engine mechanical wear to rings and valves and a plethora of other issues, only careful testing of the entire engine and systems that control it can determine the actual cause of the misfire. My experience is 30 years as factory trained and certified master tech in electronic engine control theory and operation and repair.

Posted on Oct 07, 2010

  • 3 Answers

SOURCE: 2002 toyota tacoma v6 4x4. I had a multipel

I was having the same problem changed plugs, plug wires, coil packs, cat converter and had injectors flushed....cost quite a bit and nothing fixed the problem. Over 1000.00 spent before changing the injectors and this fixed the problem perfect. My truck now runs like new and I hope to get another 185,000 miles out of it......have the injectors checked and use "seafoam"....good luck

Posted on Feb 20, 2011

  • 3 Answers

SOURCE: code reader is saying there's

stop spending your money change the injector and you will see it run like new

Posted on Feb 20, 2011

  • 1066 Answers

SOURCE: Toyota four runner 95 v6 it doesnt start makes

if your battery is fully charged, then your starter celliniod contact is probably worn out.

you can remove your starter and have it tested at an alternator/starter specialty repair/rebuild shop. if the cellinoid or cellinoid contact tests bad, then you can replace either of those for just a few dollars.

if the entire starter tests bad, then you can usually have it rebuilt for around $100.

Posted on Mar 26, 2011

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