From "stay tuned" to T U N E D !!

[Big Dave]

Ah the magical mystery of Auto electrics, bad earth's and bad connections can definitely cause unusual things to happen. My Commodore's hi-beam coming on without being switched on for example. One of my uncles had an old Bitsashiti that the wipers turned on by themselves and one indicator started flashing randomly, diagnosed as a bad fusible link, one connector had been plugged in for fifteen years and never been unplugged, so built up resistance and made weird stuff happen. He didn't believe it, but the sparky told him to unplug and plug back in every connection he could find, and didn't charge him for the advice, but it did fix the problem. His fingers were killing him by the time he was done.

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[Klasse Act]

My daughter and I took a couple gift cards for Starbucks and Jimmy John's to my SA and mechanic who fixed my car last week. I believe in taking care of those who take care of you, even if it's their job

My SA said I shouldn't be afraid to wash my car, well...stay "tuned"

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[Desertnate]

Yeah, I've heard of strange things happening with grounding on more than just cars. It gets even more bizarre when the ground gets energized on sensitive sensor equipment - have a long story about that scenario.

I think if you can determine not only the location of the grounding bolt and the knock sensor, it would be pretty helpful in determining the risk of running it through a touchless wash. If the bolt can be reached, it might be worth doing your own occasional PMI to make sure it isn't corroding and slather on a little dialectic grease.

As for the performance, I'm not sure how much faith I would put in the on-board sensors. Like the G-meter in my car, I find them to be entertaining but not a true measure like you'd get from a proper measuring suite (i.e. VBOX) like some of the testing outlets use. A proper dyno run will probably get you a much closer estimate of what the car is actually doing. Many manufactures these days under-estimate output to avoid the issues Ford ran into a few years ago with the Mustang and or home-country testing policy like the Germans go through.

[oneheadlite]

Unfortunately I can’t be much more help than this. Hyundai doesn’t share much for ground location information.

Looks like your knock sensor is underneath your intake manifold between the center ports.

[Klasse Act]

You guys have been very helpful and I'll be looking into having this inspected at oil change time for sure

The tech who worked on my car is on vacation but I'm going to find out next week if he did infact apply the dialetric grease on the ground

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[Coatingsarecrack]

Glad it seems to be fix… glad it was as simple as a ground.


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[Klasse Act]

So I waited well over a week, for whatever reason, to take the EN through the touch-free wash...and it happened again, 1326 code. It's been 1326 all along too, the ECU replacement showed 1326, the corroded ECU ground showed 1326 code and I thought that solved it because it didn't come back right away after that. My SA even asked me I washed it yet and I said no, I'm scared to and he said "Hey man, you gotta"...well now they GOTTA replace the knock sensor, what else can it be at this point

This sucks on many levels, tired of being kicked in the gut over this

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[TTQ B4U]

So I waited well over a week, for whatever reason, to take the EN through the touch-free wash...and it happened again, 1326 code. It's been 1326 all along too, the ECU replacement showed 1326, the corroded ECU ground showed 1326 code and I thought that solved it because it didn't come back right away after that. My SA even asked me I washed it yet and I said no, I'm scared to and he said "Hey man, you gotta"...well now they GOTTA replace the knock sensor, what else can it be at this point

How long after you enter the wash does it toss a code? Video of it? Just curious.

[Coatingsarecrack]

Well hopefully replaced and then good? My understanding is is they replaced it once?


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[Big Dave]

I found this video on YT, from six months ago. I'm not trying to single out your choice of car, or upset you, but the knock sensor makes number 1 on the list. It seems like Hyundai are fully aware of this issue. They really have to come up with a fix for this. If they have bought back vehicles that have the front parking sensor issue, then they need to do the same for this.

10 Most Common Problems with the Hyundai Elantra N - YouTube

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