84-85 Trucks & 4Runners 2nd gen pickups and 1st gen 4Runners with solid front axles

funny running engine, help!!

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Old Jun 1, 2008 | 11:57 PM
  #1  
mungo06's Avatar
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funny running engine, help!!

i have a 22-re and every time i go over 2,000 rpms at a steady speed, it starts running really funny and rough, i dont know much about about diagnosing problems and i need help
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Old Jun 2, 2008 | 06:04 PM
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Have you pulled any codes from the computer yet?
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Old Jun 2, 2008 | 09:30 PM
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i dont have any kind of diagnostic equipment, or the time to do so
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Old Jun 2, 2008 | 09:46 PM
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Originally Posted by mungo06
i dont have any kind of diagnostic equipment, or the time to do so
I'll wager if you pull out your desk drawer and rummage around in there you will find a "scan tool"



and how to use it:
http://www.4crawler.com/4x4/CheapTri...CheckConnector

Takes less than a minute to pull any stored codes.
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Old Jun 3, 2008 | 07:56 AM
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no see thats just the thing, im only 20 and on my second yota, and im the only one in my family to drive an import
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Old Jun 3, 2008 | 07:59 AM
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Seriously, all you need is a paper clip (a metal one is preferred) to jumper the diagnostic port and then at least one working eye ball to look at the check engine light flashes. The rest is just counting the flashes.
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Old Jun 3, 2008 | 10:02 AM
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ok, i did not know that, ill have to do that tomorrow when its not raining here, thanx
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Old Jun 4, 2008 | 03:09 PM
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i pulled 5, 7, and 12, for the trouble codes
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Old Jun 4, 2008 | 09:37 PM
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#5 Is the O2 Sensor
#7 Is the TPS Throttle Position Sensor
#12 Is the knock sensor


Ok These are easily replaced, Also you should check the wires for damage first. The O2 Sensor is screwed into the exhaust manufold. The Knock sensor is below the intake manifold, The TPS is attached to the side of the throttle body.
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Old May 16, 2009 | 11:35 PM
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found out the knock sensor was missing the tps has a bad connector but still works and the 02 sensor got replaced
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Old May 17, 2009 | 12:50 AM
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That's good.
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Old May 17, 2009 | 05:42 AM
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hows it runnin now?
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Old Jun 10, 2009 | 01:08 PM
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better... but after some time of sitting it developed a miss, fixed that, now it runs eraticly while stayin a constant rpm, and lopes at idle
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Old Jun 10, 2009 | 02:27 PM
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Dump some fuel system cleaner in the tank when you fuel up. Use that tank then change the fuel filter. Check distributor cap for carbon marks and good connections. Is the rotor good? Check wires with ohm reader end to end, reading should be under 1 ohm if not change wires. Check fuel pressure should be around 65psi roughly. Hope this helps.
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Old Jun 12, 2009 | 05:47 PM
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i found out its the maf sensor thats causin my problem now... now either i need to find a good one that works right used, or somehow manage to get 180 bucks saved up to buy a new one
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