LED TVSV mod not working alkdfjaldfj, green red flash at boost. Options

[urbandork]

ok so after installing the LED knock light mod i have found that at any boost level my red and green led flicker on and off rather then just the green staying on. I assume this means i have knock in one cylinder and each time that cylinder fires my knock sensor picks it up and thus my green and red light blink on and off.

what could this be from? my oil does need to be changed. I guess i should look at the plugs right? compression test maybe????

i dont exactly know what i should start off with?

any advice?

i have a 255 wabrol pump, stock injectors and stock plugs and im running 91 octane.

please shed some light?

so i know its not knock now but something else. It seems to be wired correctly but still when im at boost the green led does not stay on. instead the red and green led flash.

and when my key is turned to acc. the green light is full brightness and the red is half.

for all you who have done the mod when the key is in the acc position what light is on?

i dont get why both are on the ecu and its tcp line must be crazy.


does it matter that i got my ground for the red led and power for the green led from the plug for the cig lighter????? perhaps maybe the current is to strong i dont knowalfhdlhfaldfhj



This post has been edited by urbandork: Jun 21, 2007 - 3:47 PM

[urbandork]

ok so i took another look at the wiring today and took some pix.

im getting the tvsv/tcp signal for my turbo off of pin 2 on the largest plug which is C. This was found via the EWD for the st205 and backed up via other pitures on line

the line can be seen here and its the blue with red line and im tapping/teeing in about and inch after the plug


i have my LED's hooked up like this (see pic) with the + from the red LED and the - from the green LED soldered together with the white wire which is tapped into the blue w/red line wire off the ecu plug in the first pic. The - and + from the red and green led, respectivly, are going to the ground and a 12v line which use to feed the CIG lighter.



Thinking that radioshack may have messed up on the wiring of the resistor or something i tested it out. BOTH led's when hooked up to a ground an 12v line WILL only work with the red wire to power and the black wire to ground.

While taking everything apart to rewire i noticed that with the wires hooked up like they are in the above picture and the key turned to ACC both lights lit up. The red one only being half as intence as the green one. BUUUUTTT when i took off the signal line both light up equally as bright. I have a piture below to explain what this looked like



So whats wrong here?????? why is it when the LED's are hooked up @$$ backwards and powered they work?????? they dont work like batteries do they???
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So after being stumped as to why both LED's light up when wired up backwards like that i thought it might be smart just to wire ONE color LED to the signal line. I chose the GREEN led. the TCP singal line wired to the green led's black wire and the red wire to the 12v powero line for the cig lighter.......

i took it for a test drive and guess what?????

the DAMN green LED still blinks on and off just as it had before.


THIS MEANS that it must be my ECU's TCP signal wire right?????? but why would the TCP line osilate polarities between neg. and pos.

[phattyduck]

ok so i took another look at the wiring today and took some pix.

im getting the tvsv/tcp signal for my turbo off of pin 2 on the largest plug which is C. This was found via the EWD for the st205 and backed up via other pitures on line

the line can be seen here and its the blue with red line and im tapping/teeing in about and inch after the plug

You haven't soldered the wire on yet in the pic, right? It looks like just a bit of the insulation has been stripped in the picture.

-Charlie