Notices
ECU Flash

Mod request: Knock count buzzer

Thread Tools
 
Search this Thread
 
Old Oct 17, 2007, 02:25 PM
  #16  
Evolving Member
iTrader: (14)
 
mfr122887's Avatar
 
Join Date: Feb 2006
Location: Westchester, NY
Posts: 305
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Evoryder
buzzer would be good too...i already have an additional bright bulb hooked up to my ecu pin so when the cel flashes so does the LED...you can always hook a line to that.

I will add, the buzzer could get annoying. My led gets my attention enough just through peripherals alone.
For this do you just run 12v power to one side of the led and ground it on ECU pin 36? Or is it the other way around, the led gets power from the CEL pinout and its grounded to the chassis? Thanks
Old Oct 17, 2007, 02:29 PM
  #17  
Evolved Member
iTrader: (55)
 
Evoryder's Avatar
 
Join Date: Apr 2004
Location: ☼ Florida ☼
Posts: 7,383
Likes: 0
Received 10 Likes on 10 Posts
Originally Posted by mfr122887
For this do you just run 12v power to one side of the led and ground it on ECU pin 36? Or is it the other way around, the led gets power from the CEL pinout and its grounded to the chassis? Thanks
Yes. Pin 36 is a grounded when activated.
Old Oct 17, 2007, 02:29 PM
  #18  
Evolving Member
iTrader: (14)
 
mfr122887's Avatar
 
Join Date: Feb 2006
Location: Westchester, NY
Posts: 305
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Evoryder
Yes. Pin 36 is a grounded when activated.
Thanks alot
Old Oct 17, 2007, 02:48 PM
  #19  
Evolved Member
iTrader: (90)
 
inco9nito99's Avatar
 
Join Date: Jul 2005
Location: Roselle, IL
Posts: 1,917
Likes: 0
Received 0 Likes on 0 Posts
I like the idea of a buzzer (seatbelt warning) buzzing for everytime you knock.
Old Oct 17, 2007, 04:08 PM
  #20  
Evolved Member
Thread Starter
iTrader: (66)
 
Jeff_Jeske's Avatar
 
Join Date: Jan 2003
Location: On the track
Posts: 4,358
Received 6 Likes on 6 Posts
Originally Posted by travman
I really dont see the point....isnt the cel flashing enough of a warning?
During lapping days on very technical tracks or an aggressive autox course I barely have enough time to check gauges. In addition, during the day light hours that CEL is hard to see. A buzzer would be much more appropriate.

I will try tapping into the harness for this but I'm afraid it will buzz every time I start the car.
Old Oct 17, 2007, 04:34 PM
  #21  
Evolved Member
iTrader: (55)
 
Evoryder's Avatar
 
Join Date: Apr 2004
Location: ☼ Florida ☼
Posts: 7,383
Likes: 0
Received 10 Likes on 10 Posts
Originally Posted by Jeff_Jeske
During lapping days on very technical tracks or an aggressive autox course I barely have enough time to check gauges. In addition, during the day light hours that CEL is hard to see. A buzzer would be much more appropriate.

I will try tapping into the harness for this but I'm afraid it will buzz every time I start the car.
it will.

"BBBZZZZZZZZZZZZZZ"
Old Oct 17, 2007, 04:46 PM
  #22  
Evolved Member
iTrader: (17)
 
Jack_of_Trades's Avatar
 
Join Date: Jun 2007
Location: Opelika,AL
Posts: 3,523
Likes: 0
Received 2 Likes on 1 Post
Get this:

http://www.radioshack.com/product/in...entPage=search

(108db is the quietest you're gonna want if you need to hear it racing. If its too loud you can tuck it under the dash somewhere which blocks some of the sound or place a strip of scotch tape over the front of the buzzer to muffle the sound level)

Simply put this inline between the buzzer and the ECU pinout and only activate it when you are road testing or racing.

http://www.radioshack.com/product/in...entPage=search

Less than 15 bucks fellas.


If you want a delayed turn-on so you dont hear it during start-up instead of the on/off switch, just get one of these. Most DEI car alarm dealers keep these in stock too.

http://www.caraudio-caralarms.com/528T.html

Last edited by Jack_of_Trades; Oct 17, 2007 at 04:58 PM.
Old Oct 17, 2007, 04:53 PM
  #23  
Evolved Member
iTrader: (55)
 
Evoryder's Avatar
 
Join Date: Apr 2004
Location: ☼ Florida ☼
Posts: 7,383
Likes: 0
Received 10 Likes on 10 Posts
Originally Posted by Jack_of_Trades
Get this:

http://www.radioshack.com/product/in...entPage=search

(108db is the quietest you're gonna want if you need to hear it racing. If its too loud you can tuck it under the dash somewhere which blocks some of the sound or place a strip of scotch tape over the front of the buzzer to muffle the sound level)

Simply put this inline between the buzzer and the ECU pinout and only activate it when you are road testing or racing.

http://www.radioshack.com/product/in...entPage=search

Less than 15 bucks fellas.
I was thinking of an off switch to...but is he going to remember to turn it on? If he adds turning on the switch as part of his maintenance routine, he'll be ok.
Old Oct 17, 2007, 04:55 PM
  #24  
Evolved Member
iTrader: (17)
 
Jack_of_Trades's Avatar
 
Join Date: Jun 2007
Location: Opelika,AL
Posts: 3,523
Likes: 0
Received 2 Likes on 1 Post
Just edited my post about that actually lol. Read my previous post ^^^^^

Most reputable stereo/car alarm shops could hook up this whole thing for you guys if you bought the buzzer and brought it to them. I mean the shops who sell the 528T or similar product.

Last edited by Jack_of_Trades; Oct 17, 2007 at 04:57 PM.
Old Oct 17, 2007, 06:32 PM
  #25  
Evolved Member
iTrader: (55)
 
Evoryder's Avatar
 
Join Date: Apr 2004
Location: ☼ Florida ☼
Posts: 7,383
Likes: 0
Received 10 Likes on 10 Posts
Originally Posted by Jack_of_Trades
Just edited my post about that actually lol. Read my previous post ^^^^^

Most reputable stereo/car alarm shops could hook up this whole thing for you guys if you bought the buzzer and brought it to them. I mean the shops who sell the 528T or similar product.
good stuff
Old Oct 17, 2007, 09:40 PM
  #26  
Evolved Member
iTrader: (17)
 
Evo_Jay's Avatar
 
Join Date: Jun 2005
Location: Chico, CA (NOR-CAL)
Posts: 3,417
Received 13 Likes on 12 Posts
Originally Posted by trinydex
that is boost correction...
NO tephra made a patch that is unreleased that cuts boost when a certain kock count is reached. It has nothing to do with boost correction.
Old Oct 18, 2007, 08:27 AM
  #27  
Evolved Member
Thread Starter
iTrader: (66)
 
Jeff_Jeske's Avatar
 
Join Date: Jan 2003
Location: On the track
Posts: 4,358
Received 6 Likes on 6 Posts
^^^ That would be the best as it would save the car and force you to retune.
Old Dec 30, 2007, 03:01 PM
  #28  
EvoM Guru
iTrader: (41)
 
EVO8LTW's Avatar
 
Join Date: Jul 2004
Location: Northern Virginia
Posts: 4,603
Received 95 Likes on 82 Posts
I'd like to wire up an auxiliary LED for the KnockCEL and am wondering if I need to be careful about the current draw of the LED or buzzer that I choose. Does anyone know what is a safe current draw to run through ECU pin 36 (CEL)?

Thanks!
Old Dec 30, 2007, 03:45 PM
  #29  
Evolved Member
iTrader: (17)
 
Jack_of_Trades's Avatar
 
Join Date: Jun 2007
Location: Opelika,AL
Posts: 3,523
Likes: 0
Received 2 Likes on 1 Post
A standard LED only draws around 20mA, no problem for the power output for the Check Engine light.
Old Dec 30, 2007, 07:53 PM
  #30  
Evolving Member
iTrader: (15)
 
mitdrx's Avatar
 
Join Date: Oct 2007
Location: mi
Posts: 233
Likes: 0
Received 0 Likes on 0 Posts
I am going to wire mine to a door bell...knock knocking at my door



All times are GMT -7. The time now is 11:32 AM.