Knock warning after ecutek tune

mag_black · 10-17-2017, 10:12 PM

So I started to notice that ecutek has been triggering knock warning (CEL flashes) while I’m in 1/2/3 gear and driving around 1500-2500 rpms, it happens pretty often. Is anyone else having this issue? Also there are times my cruise control flashes and I can’t change maps, I have to turn the car off and on again.

What could the problem be? Aggressive tune?

jmroy6 · 10-17-2017, 10:43 PM

Never has happened to me, i find it weird that it knocks at such a low rpm. Whats your oil pressure look like? Does the car knock on full pulls too?

Quote:

Originally Posted by mag_black

So I started to notice that ecutek has been triggering knock warning (CEL flashes) while I’m in 1/2/3 gear and driving around 1500-2500 rpms, it happens pretty often. Is anyone else having this issue? Also there are times my cruise control flashes and I can’t change maps, I have to turn the car off and on again.

What could the problem be? Aggressive tune?

Cranberry · 10-18-2017, 08:26 AM

Hey man, glad to here I'm not alone with this. I had knocking error like crazy with my UpRev, so much so that we had to go to UpRev personally and get them to read the data because the tuner was worried the engine was toast!

Heres the short of it.

The tune has its own calculations to read the knock sensor and the factory computer also has. Generally your car usually only has the single knock sensor from the factory reading everything and that ok, but when you add the factory tune with the aftermarket tune, you now have 2 different systems reading the knock sensor. They basically fight each other in some situations.

Even though your reading a knock sensor you are most likely not actually experiencing a knock. (you would here / feel it if you were)

In the end we figured out with my set up that the following was the cooperate.

I run cut out exhaust with test pipes, When running the car with cut outs closed we did not throw the knock sensor on the tune or the factory read. When cut outs were open we through the knock code only on the tune but not the factory reader. The tune is reading at such a different level then the factory reader that it was picking up the crazy vibrations / sound from the cut outs. By increasing the knock range in the tune program we eliminated the issue.

Been running the car track set up all summer, never had an issue or thrown a knock sensor issue since.

Feel free to msg me for more info, I can go into much more detail on the resolution with this issue.

Hope this helps

mag_black · 10-18-2017, 11:29 AM

Quote:

Originally Posted by Cranberry

Hey man, glad to here I'm not alone with this. I had knocking error like crazy with my UpRev, so much so that we had to go to UpRev personally and get them to read the data because the tuner was worried the engine was toast!

Heres the short of it.

The tune has its own calculations to read the knock sensor and the factory computer also has. Generally your car usually only has the single knock sensor from the factory reading everything and that ok, but when you add the factory tune with the aftermarket tune, you now have 2 different systems reading the knock sensor. They basically fight each other in some situations.

Even though your reading a knock sensor you are most likely not actually experiencing a knock. (you would here / feel it if you were)

In the end we figured out with my set up that the following was the cooperate.

I run cut out exhaust with test pipes, When running the car with cut outs closed we did not throw the knock sensor on the tune or the factory read. When cut outs were open we through the knock code only on the tune but not the factory reader. The tune is reading at such a different level then the factory reader that it was picking up the crazy vibrations / sound from the cut outs. By increasing the knock range in the tune program we eliminated the issue.

Been running the car track set up all summer, never had an issue or thrown a knock sensor issue since.

Feel free to msg me for more info, I can go into much more detail on the resolution with this issue.

Hope this helps

Thanks for the info Cranberry, that's good to know and also relieving, I did message the tuner to see what he has to say. My only other issue is when my cruise control light flashes and I can't change maps, I haven't tried flat foot shifting to launch control when it flashes so I'm not sure if everything is disabled. I will have to test that.

mag_black · 10-18-2017, 11:12 AM

Quote:

Originally Posted by jmroy6

Never has happened to me, i find it weird that it knocks at such a low rpm. Whats your oil pressure look like? Does the car knock on full pulls too?

Never WOT, only when in low gear at low rpms w/ 30-40% throttle at most.

osbornsm · 10-18-2017, 11:31 AM

Quote:

Originally Posted by mag_black

Never WOT, only when in low gear at low rpms w/ 30-40% throttle at most.

Had the same issue when remote-tuned.

After i got a "real" dyno tune by Seb it's all good!!

SouthArk370Z · 10-18-2017, 12:21 PM

It sounds to me like you are lugging the engine. Dropping down a gear and getting the RPMs up might help.

Might want to try a tank of high-octane gas. If the knocking stops, get your tune adjusted (or start using hi-octane fuel).

mag_black · 10-18-2017, 01:03 PM

I'm awaiting a reply from the tuner, it was Kaizen Tuning here in MA, the are pretty reputable and I did dyno tune. I could possibly run in lower gear. I haven't changed my driving style at all. I'm thinking it's what the Cranberry said about knock reading from Ecutek... well at least I hope it is. I won't know until the tuner takes another look.

Elmo370z · 01-02-2019, 10:45 AM

Quote:

Originally Posted by mag_black

I'm awaiting a reply from the tuner, it was Kaizen Tuning here in MA, the are pretty reputable and I did dyno tune. I could possibly run in lower gear. I haven't changed my driving style at all. I'm thinking it's what the Cranberry said about knock reading from Ecutek... well at least I hope it is. I won't know until the tuner takes another look.

I had the same issues, car just pulls timing. Car never did it on uprev which was weird. One way to see if your car is actually knocking is to record your knock sensor and listen while you’re making pulls.

JamesTheBrain · 01-01-2019, 09:12 PM

Just curious if you have fixed the issue?

mag_black · 02-06-2019, 12:46 PM

Quote:

Originally Posted by JamesTheBrain

Just curious if you have fixed the issue?

no, the issue is still there. I get it from time to time. I try not to drive it at such low rpm lol. Kind of sucks. I still get the cruise light flashing and not being able to change maps as well.

Elmo370z · 02-06-2019, 12:49 PM

Quote:

Originally Posted by mag_black

no, the issue is still there. I get it from time to time. I try not to drive it at such low rpm lol. Kind of sucks. I still get the cruise light flashing and not being able to change maps as well.

https://uprev.com/documentation/Knoc...n%20Device.pdf

With this you can listen and see if your car is truly knocking. Forum member here has installed it and it working fine. Now a true safe way to desensitize the knock sensors.

ByThaBay · 02-06-2019, 12:51 PM

Quote:

Originally Posted by mag_black

no, the issue is still there. I get it from time to time. I try not to drive it at such low rpm lol. Kind of sucks. I still get the cruise light flashing and not being able to change maps as well.

Pm me I’ll help you analyze it and resolve it.

mag_black · 02-06-2019, 12:52 PM

Quote:

Originally Posted by Elmo370z

https://uprev.com/documentation/Knoc...n%20Device.pdf

With this you can listen and see if your car is truly knocking. Forum member here has installed it and it working fine. Now a true safe way to desensitize the knock sensors.

Thanks, I will give it a shot.

Quote:

Originally Posted by ByThaBay

Pm me I’ll help you analyze it and resolve it.

Awesome, really appreciate it!

Elmo370z · 02-06-2019, 02:23 PM

Quote:

Originally Posted by mag_black

Thanks, I will give it a shot.

Awesome, really appreciate it!

Pm derraj06 he installed this on his car. He had the same issues as you and I.

10-17-2017, 10:12 PM	#1 (permalink)
mag_black A True Z Fanatic Join Date: Mar 2013 Location: Massachusetts Posts: 1,400 Drives: 09 370Z MT6 Rep Power: 667	Knock warning after ecutek tune So I started to notice that ecutek has been triggering knock warning (CEL flashes) while I’m in 1/2/3 gear and driving around 1500-2500 rpms, it happens pretty often. Is anyone else having this issue? Also there are times my cruise control flashes and I can’t change maps, I have to turn the car off and on again. What could the problem be? Aggressive tune? Elmo370z likes this. __________________ fujimura ≠ abbeyRoadCompany ≠ fastIntentions ≠ motordyne ≠ avantGarde ≠ ecutek ≠ nismo ≠ stillen ≠ stoptech ≠ gtm ≠ spl ≠ carbonfiberelement ≠ stance™

10-18-2017, 08:26 AM	#3 (permalink)
Cranberry Base Member Join Date: Aug 2016 Location: Winnipeg Posts: 89 Drives: 2009 370Z Touring Rep Power: 702	Hey man, glad to here I'm not alone with this. I had knocking error like crazy with my UpRev, so much so that we had to go to UpRev personally and get them to read the data because the tuner was worried the engine was toast! Heres the short of it. The tune has its own calculations to read the knock sensor and the factory computer also has. Generally your car usually only has the single knock sensor from the factory reading everything and that ok, but when you add the factory tune with the aftermarket tune, you now have 2 different systems reading the knock sensor. They basically fight each other in some situations. Even though your reading a knock sensor you are most likely not actually experiencing a knock. (you would here / feel it if you were) In the end we figured out with my set up that the following was the cooperate. I run cut out exhaust with test pipes, When running the car with cut outs closed we did not throw the knock sensor on the tune or the factory read. When cut outs were open we through the knock code only on the tune but not the factory reader. The tune is reading at such a different level then the factory reader that it was picking up the crazy vibrations / sound from the cut outs. By increasing the knock range in the tune program we eliminated the issue. Been running the car track set up all summer, never had an issue or thrown a knock sensor issue since. Feel free to msg me for more info, I can go into much more detail on the resolution with this issue. Hope this helps __________________ 2009 370z M/T - straight pipe cut outs / motordyne test pipes & intake manifold / K&N typhoon intake / ACT stage 2 race clutch & flywheel / ZEX wet nitrous / UpRev tune / stillen race oil cooler / 317 WHP N/A - 381 WHP with ZEX www.youtube.com/danialk ///\\\///\\\ Follow me on Instagram @dankobra

10-18-2017, 12:21 PM	#7 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	It sounds to me like you are lugging the engine. Dropping down a gear and getting the RPMs up might help. Might want to try a tank of high-octane gas. If the knocking stops, get your tune adjusted (or start using hi-octane fuel). __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

10-18-2017, 01:03 PM	#8 (permalink)
mag_black A True Z Fanatic Join Date: Mar 2013 Location: Massachusetts Posts: 1,400 Drives: 09 370Z MT6 Rep Power: 667	I'm awaiting a reply from the tuner, it was Kaizen Tuning here in MA, the are pretty reputable and I did dyno tune. I could possibly run in lower gear. I haven't changed my driving style at all. I'm thinking it's what the Cranberry said about knock reading from Ecutek... well at least I hope it is. I won't know until the tuner takes another look. osbornsm likes this. __________________ fujimura ≠ abbeyRoadCompany ≠ fastIntentions ≠ motordyne ≠ avantGarde ≠ ecutek ≠ nismo ≠ stillen ≠ stoptech ≠ gtm ≠ spl ≠ carbonfiberelement ≠ stance™

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