Good to know about the knock module
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Good to know about the knock module
Quote:
Originally Posted by Injuneer
The tuner told me they did something in the computer...not the resistor...and did not change the sensor.
But @JPack explained something avout the lt4 knock mod allowing the same thing to happen.
My car is running the same knock sensor...with the obd1 conversion.
And it works.
@JPack was able to explain it before.
MEMBER @ LTXtech.com
I have no idea if the wiring in the 96 would be compatible, since I don't think the 96 had a trans performance feature. Whether they just left the wiring there, and eliminated the switch I really don't know. I do know that Shoebox has a procedure for adding the performance button to the 94/95 Camaro, which did not have the button. The wiring seems so simple that I would just try connecting the harness connector and your 95 console switch and see if it works. If not, it would probalby a simple wiring change.
http://shbox.com/1/tpbutton_diag.jpg
as far as knock sensor mod.. here is some more info.. The ODB1 KS has an internal resistance of 3300 to 4500 ohms, the OBD2 KS resistance is 93K to 107K ohms. The fix is to put a 3900 ohm resistor in parallel with the knock sensor (blue wire to ground, external fix) or inside the OBD1 PCM (internal fix). By putting a 3900 ohm resistor in parallel with the 100K OBD2 KS the resistance changes to around 4000 ohms which is in range for the PCM. The sensitivity of the KS does not change. Here is a post of the internal fix which is more flexible as you can swap the OBD1 and OBD2 PCM back and forth (emission testing, etc) w/o having to remove the resistor. scroll to post #11 for a pic.. Internal PCM Resistor Mod: OBDII to OBDI Conversion? - CamaroZ28.Com Message Board
And here is more detail than you may want to read on the performance switch.. as previously mentioned it was not in the '96 , but maybe the wiring is still there . http://www.trifectaperformance.com/t...rmanceMode.htm I added one in my '94 Z28 that I use when I want to play around with different shifting and pressure points..
Thanks man. Appreciate itQuote:
Originally Posted by Injuneer
I'll post up an let u guys know what I find out. So if the question gets asked again in the future we have an answer
There wasn't any lt4 knock sensor, just the module in the pcm. So 94-97 can use either knock sensor with an lt4 knock module.
thanku...Quote:
Originally Posted by JPack
MEMBER @ LTXtech.com
People tend to get confused on the Knock Module vs sensor, The Knock Sensor is the one on the block on the passenger side, the Module is in the PCM via the little access door. The ohm readings are different as said and will pull timing, But you can go into the PCM on the knock retard tables and desensitize or reduce or zero out the amount of timing the PCM will pull. I prefer to change out the module so I can leave some safety factor for any detonation especially in Nitrous setups and in Force Induction motors...
I emailed rob(shoebox) he didn't have an answe either about the perform button. I almost have the car back together to the point where I'm gonna be starting it in the next day or so. So I will let u guys know what happens with the button. Attachment 25574Here's the wiring in the 96 t/a. It's the exact same a the 95 where it plugged into the switch. The dirt/crud on it makes it look like originally it wasn't plugged into anything. So the wiring maybe there on some or all of the 96trans ams as well. Kind of a small detail but maybe this will help someone wanting to add the feature to their car. I like it personally it really firms the shifts up. (Almost seems to be have a bit more power) could just be true to the higher and harder shift points, or maybe I'm just ��