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Old 12-06-2019, 09:10 PM #31
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I went with NGK. Work flawlessly
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2007 SR5 V6 4WD, Titanium Metallic. 5100s, OME 885/895, extended rear links, Cooper ST Maxx 255/75 R17 on 17x8s, mud flap delete, throttle body spacer, Cold Air Intake, DRL delete, HCF delete, DAC delete, K&N cabin filter, TPMS bypass, Fog light mod, USB galore, dash cam, COB LED drop-in lights all over, rear bumper lights, cbi ditch light brackets w/lights, atrac off, OBA w/2 gallon tank/hidden hook up, Trailgear welded sliders, Rocksteady skids, Rigid Armor tire carrier, SE hood w/functional vent, Pedal Commander, JET MAF, Kenwood TM-V71a w/motorized antenna, custom dual battery, custom roof rack/lights, custom TRED mount, external 12v hookup, dash mounted tablet, rear diff breather, pck, Freedom UCAs, custom stereo....for now....
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Old 12-09-2019, 04:20 PM #32
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Quote:
Originally Posted by 08TxRunner View Post
Didn't know there was a problem with fake plugs for the wrong application being sold. Got any links?
PSA: Beware of Fake Iridium Spark Plugs (Ex. Denso SK20R11)
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Old 12-10-2019, 02:33 PM #33
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Replacing both the downstream sensors today. After replacing them, do I need to pull the battery cables off and let it sit for a bit? Or am I good to start driving once they're replaced.
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Old 12-11-2019, 12:42 AM #34
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Originally Posted by blindloser1080 View Post
Replacing both the downstream sensors today. After replacing them, do I need to pull the battery cables off and let it sit for a bit? Or am I good to start driving once they're replaced.
Not a bad practice. With modern vehicles, the computer stores and remembers everything. Blanking it out will make it relearn so if there is another problem it will be obvious. Don't be alarmed, engine will start and die the first time. That's normal, start it again and it should be fine
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2007 SR5 V6 4WD, Titanium Metallic. 5100s, OME 885/895, extended rear links, Cooper ST Maxx 255/75 R17 on 17x8s, mud flap delete, throttle body spacer, Cold Air Intake, DRL delete, HCF delete, DAC delete, K&N cabin filter, TPMS bypass, Fog light mod, USB galore, dash cam, COB LED drop-in lights all over, rear bumper lights, cbi ditch light brackets w/lights, atrac off, OBA w/2 gallon tank/hidden hook up, Trailgear welded sliders, Rocksteady skids, Rigid Armor tire carrier, SE hood w/functional vent, Pedal Commander, JET MAF, Kenwood TM-V71a w/motorized antenna, custom dual battery, custom roof rack/lights, custom TRED mount, external 12v hookup, dash mounted tablet, rear diff breather, pck, Freedom UCAs, custom stereo....for now....
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Old 12-11-2019, 01:09 AM #35
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Not a bad practice. With modern vehicles, the computer stores and remembers everything. Blanking it out will make it relearn so if there is another problem it will be obvious. Don't be alarmed, engine will start and die the first time. That's normal, start it again and it should be fine
Thanks, will most definitely do. Just got both the sensors installed. It definitely didn't misfire nearly as much as it was before with the old sensors. Maybe 6 times total? And that was at the very beginning of my drive. On the way back, nothing that I noticed.
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Old 12-11-2019, 12:50 PM #36
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Quote:
Originally Posted by blindloser1080 View Post
Thanks, will most definitely do. Just got both the sensors installed. It definitely didn't misfire nearly as much as it was before with the old sensors. Maybe 6 times total? And that was at the very beginning of my drive. On the way back, nothing that I noticed.
Right on. Sounds promising
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2007 SR5 V6 4WD, Titanium Metallic. 5100s, OME 885/895, extended rear links, Cooper ST Maxx 255/75 R17 on 17x8s, mud flap delete, throttle body spacer, Cold Air Intake, DRL delete, HCF delete, DAC delete, K&N cabin filter, TPMS bypass, Fog light mod, USB galore, dash cam, COB LED drop-in lights all over, rear bumper lights, cbi ditch light brackets w/lights, atrac off, OBA w/2 gallon tank/hidden hook up, Trailgear welded sliders, Rocksteady skids, Rigid Armor tire carrier, SE hood w/functional vent, Pedal Commander, JET MAF, Kenwood TM-V71a w/motorized antenna, custom dual battery, custom roof rack/lights, custom TRED mount, external 12v hookup, dash mounted tablet, rear diff breather, pck, Freedom UCAs, custom stereo....for now....
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Old 12-11-2019, 05:12 PM #37
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Unplugged the battery for a good 20 minutes. Drove around town, around the freeway 55-60mph no problems for about 30 minutes. Stopped at the store, decided to take it on the freeway... it starts happening again. Same misfires at 55-60 and sometimes at low like 25 whenever I'm at the 1800 rpm mark.

Any other thoughts?
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Old 12-11-2019, 06:52 PM #38
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Quote:
Originally Posted by blindloser1080 View Post
Unplugged the battery for a good 20 minutes. Drove around town, around the freeway 55-60mph no problems for about 30 minutes. Stopped at the store, decided to take it on the freeway... it starts happening again. Same misfires at 55-60 and sometimes at low like 25 whenever I'm at the 1800 rpm mark.

Any other thoughts?
Check your fuel trims and O2 sensor voltages again and see if anything changed after putting in the new sensors.
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Old 12-11-2019, 07:14 PM #39
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So I decided screw it. Called the Toyota specialist here avx they ran a diagnostics on it. My 3rrd coil is bad. They hooked it up to a computer and found the misfire. Moved the 3rd coil to #5 and the misfire moved with it. So off to buy a new coil!
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Old 12-13-2019, 07:43 PM #40
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Originally Posted by blindloser1080 View Post
So I decided screw it. Called the Toyota specialist here avx they ran a diagnostics on it. My 3rrd coil is bad. They hooked it up to a computer and found the misfire. Moved the 3rd coil to #5 and the misfire moved with it. So off to buy a new coil!
Any idea how they test for that?
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Old 12-21-2019, 02:23 AM #41
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Quote:
Originally Posted by djpope09 View Post
Any idea how they test for that?
They basically put it on a 'scope'. Hooked up a computer to it and found the misfire on the coil. Moved the coil from #3 to #5 and the misfire followed. I have since replaced the coil and no problems at all!
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Old 12-21-2019, 04:01 PM #42
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This was an interesting situation ( from my perspective). Glad you got it sorted out. With coil-on-plug arrangement it seems they would act as one (almost) and that a scope would be able to sort it out, as you discovered.
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