GETUSUMM

Does anyone know where to tap into the tach wire and the tps signal wire on a 2006 vette? Can you get the tps and rpm from inside the car? Thanks

AintQik

Depends on what you mean by Tach wire. If you are looking for an RPM output you can get that from the wiring harness on the PCM. Do a search on shift lights and you will find some links to write-ups with instructions for different years. For a TPS you might need to grab a schematic or run a wire from the sensor itself.

As far as getting the signals from inside the cabin... I have heard people talk about getting a "tach signal" from behind the dash. When I installed my shift light I could not find confirmation so I just tapped the PCM harness.

I'm not sure what you are doing but there is also the question of interpreting the signal. I'm not sure if its a direct pulse or something that needs to be translated into a usable signal. I suspect its a pulse because my shift light that uses the harness has a setting for cyls.

Hope this helps, somebody smarter than me will eventually chime in.

jogar80

The tach signal can be had from the ecm. Tap into the white wire, blue connector. TPS signal can be had from the wire harness goint to the throttle body, purple wire.

GETUSUMM

Thanks for the reply. I am looking for a tach/rpm signal. If the signal is not clean, I will clean it up with a tach adapter. I am hooking up a Wide Band Commander to datalog the car. I have a indash carputer (drivesoft radio) that has Wideband commander software installed that will do playback of my run with rpm, A/F ratio, and TPS. It is alot easier to to the car with this setup. It will be installed and stay in the car all the time. It will also control some laughing gas down the line. I am not sure why people with vette's do not have one. It should be one of the first mods on everyones list imo. Do you remember wire color? Pin #
Does the ecm only have a few wires that you can say "white" wire? I am used to Fords that have a 60 pin connector. Where is the ecm located? The tps has to go somewhere into the car so it can be tapped there. I would like to find out this info so I can make a sticky to help others that may want to do the same thing.

Thanks again for your replys

eboggs_jkvl

Without actually looking, I believe it is usually #48 on the ECM.

After looking, ECM C1 white wire pin 48


Since I can't attach anything on this forum, I'll host a picture for you.



That is the C1 connector for an E38 for my 2007 LS2 engine.

Elmer

GETUSUMM

Great ! Do you happen to know where the tps wire runs to inside the car?

eboggs_jkvl

Dayem! I got it big enough!


TP sensor 1 is on the other connector and is #65 dark Green
TP sensor 2 is on same connector and is #63 Purple

eboggs_jkvl

Big so you can read the connector

eboggs_jkvl

If you need more info on the LS2, try this:

http://www.ls2.com/forums/showthread...73#post6549773

Post #7 has the E38 connectors on the 2007 Corvette


I think the other information is for the 2005 GTO

Elmer

GETUSUMM

Wow. Thanks man. I will do a sticky on this in the next few days.

SoldSyclone

The Wideband Comader does not work well on our cars I think you have to choose which of the functions you want to run I will ask my friend how he did it as it did not work the firs few ways we hooked it up.

I know you CAN NOT use the rpm signal from the coil pak.

You must go to the PCM and that causes a problem for another feature or a ck engine light cant remember which.

TP sensor 1 = grey connector pin 65 dark green
TP sensor 2 = grey connector pin 63 purple
(THIS IS WHAT WORKED BEST FOR ME BUT DID NOT WORK WITH THE WBC.)

TP 1 signal is above 4v at idle and below 1v at WOT.
TP 2 is below 1v at idle and above 4v at WOT.

TP connection is at the throttle body.

or

APP sensor 1 = black connector pin 29 dark blue
APP sensor 2 = black connector pin 32 light blue

APP 1 is below 1v at idle and above 4v at WOT.
APP 2 is .5v at idle and above 2v at WOT.

APP is the accelerator pedal position sensor

spammark

Try this shift light install link I wrote up a while back. Didn't have to access the ECM.

http://forums.corvetteforum.com/show...post1564504509

GETUSUMM

Thanks for all the very useful info guys! I will start this project now. I hope I can get it right.

Flooznie

Does anyone know where to tap into the TPS and APP wires for a c6z06? Are they the same as a regular c6?

Paul

SinisterC6

im looking for this as well, i refered my service manual and it said the white wire going t to gauge cluster has the rpm signal, sounds right?

BEZ06

That's what I used!!

Here's a thread with some pics from when I installed my shift light:

http://forums.corvetteforum.com/c6-t...ift-light.html

Bob