DJRodriguez88
New member
1999 5vz TRD Supercharged + URD 7th. Cali Emissions. ~245k miles
Truck's been supercharged for 60-70k miles by now, runs great when I've got new plugs in it.
I put some new Denso IK22's in it around 220k, they lasted about 20k miles and still looked pretty good except for the cylinder that had a bad coolant leak. The ground on that one was tore up. The previous set had 40k miles on them. They were still running good but they were very tired.
At the same time i did my headgaskets i went ahead and installed an OEM front o2 (a/f), OEM MAF, a Denso Fuel Injector Upgrade Set from MotorWest while i was in there.then of course the new Denso IK22's. The Walbro 190lph fuel pump and WIX fuel filter have <5k miles on them too.
This new set of plugs only lasted about 4k miles and they look like they have 100k on them.
What can I learn from the condition of these plugs? The 3 from the passenger side with the coil packs on them all look exactly like this.
For reference, here is an old one (LEFT) that had like ~10k miles on it (it was replaced into the leaking cylinder before i was able to do the headgasket). It even looks like a completely different construction
Because they look so different and wore out so quickly I'm even wondering if they are fakes. I bought both sets on Amazon (next set will be from Napa)
Truck's been supercharged for 60-70k miles by now, runs great when I've got new plugs in it.
I put some new Denso IK22's in it around 220k, they lasted about 20k miles and still looked pretty good except for the cylinder that had a bad coolant leak. The ground on that one was tore up. The previous set had 40k miles on them. They were still running good but they were very tired.
At the same time i did my headgaskets i went ahead and installed an OEM front o2 (a/f), OEM MAF, a Denso Fuel Injector Upgrade Set from MotorWest while i was in there.then of course the new Denso IK22's. The Walbro 190lph fuel pump and WIX fuel filter have <5k miles on them too.
This new set of plugs only lasted about 4k miles and they look like they have 100k on them.
What can I learn from the condition of these plugs? The 3 from the passenger side with the coil packs on them all look exactly like this.
For reference, here is an old one (LEFT) that had like ~10k miles on it (it was replaced into the leaking cylinder before i was able to do the headgasket). It even looks like a completely different construction
Because they look so different and wore out so quickly I'm even wondering if they are fakes. I bought both sets on Amazon (next set will be from Napa)
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