wierd problem

[LTb1ow]

Have you tried a tech2 scanner yet? Or know someone with a 94 cable to plug in via laptop?

[z28camaro94]

I have the cable, just not the lap-top. my boss has an old OBD1 scanner that im gonna try today when i get home. Do you know where the DERM(diagnostic energy reserve module) and the EBCM( electronic brake control module) are? I know where the BCM and RAP are but the data line doesnt run into them, it runs into DERM at pin B11 and EBCM at A11. so I will be checking these lines and the older scanner when I get home today. If i can find these units

[sweetbmxrider]

There is no bcm in your car. The ebcm is on the driver side of the dash kind of behind the fuse panel and towards the firewall. It has a blue connector on it I believe or part of it is blue.

As for the derm;

WARNING: The diagnostic energy reserve module or sensing and diagnostic module (DERM/SDM) can maintain enough voltage to cause air bag deployment for up to two minutes after the ignition switch is turned off and the battery is disconnected. Servicing the SIR system during this period may result in accidental deployment and personal injury.

Disarm system as described in Air Bag System Disarming & Arming .
Remove right side sound insulator, then the glove box door assembly.
Remove Connector Position Assurance (CPA), then disconnect DERM electrical connector.
Remove DERM from vehicle.

[townsend]

if you need a hand i have tunercat datamaster and lt1-edit's pcmcomm.exe datalogging software. if i cant connect to it, something is fubar in your wiring

[z28camaro94]

Originally Posted by townsend

if you need a hand i have tunercat datamaster and lt1-edit's pcmcomm.exe datalogging software. if i cant connect to it, something is fubar in your wiring

yea def. i got ahold of an ancient obd1 scanner today. will see what that does tomoro. i would have tried datalogging already if i could pony up the cash for the software and a laptop. stupid brokeness..haha. well have to set something up

[z28camaro94]

ok.....so i think i got it fixed. i took the pins for the serial data out of the connector at the ebcm and the derm. when to scan it and yes it connected!!!! so plugged the pin back in on the ebcm. still reads it. and finally reconnected the pin on the derm and it still connected. im still at a lose for what caused it, but who cares at this point. i can read the comp. I did do a continuity test on the serial data to both the ebcm and the derm while i had them disconnected. the ebcm and derm showed 3ohms with the dial on my DMM set to 2000. not sure if that means it was actually 3ohms or not. but that might be what was causing the prob. just glad to have it fixed now.

now to put the old comp back it and see if i can get memory codes out of it. from when it did its wierd thing from the OP. will keep it updated just incase anyone else has this prob in the future. thanks for the help guys!!

[z28camaro94]

Ok...Well I think I'm getting closer to figuring out the trans whining problem.

On monday I finally got around to putting in the alum driveshaft in. When I was putting the yoke back in the tranny, I noticed that I could move the output shaft in all directions about 1/16th of an inch(without the yoke in place). Now, Im pretty sure that its not supposted to move at all. So what Im thinking is causing the whining (in drive and reverse only), is when the drive train is torqued up( due to being in gear), the output shaft is at a slight angle causing stress on something inside the trans. I could be completely off base here, but it sounds logical.

Does anyone know if I would be able to see anything if I take the tail off. Or would any trans guys out there know(or take an educated guess) at what is broken.

Thanks for everyones help so far.

[sweetbmxrider]

I'm no expert but I think there is supposed to be some play in the output shaft.

[z28camaro94]

You are correct sir. Ive been PMing Frank from CPT trans and he said that there is a lil bit of movement. That a bushing in the tailshaft is used to center the output. I really dont want to tear into this thing..as this is my only car(other than the work truck, cant drive that other that to and from work).

[z28camaro94]

This is a video of the sound coming from my tranny. Sorry for the crappy sound quality. Took the video on my cell.

[IMG][/IMG]

[greenformula92]

Idk what that is but its definitely not good. You should not have any kind of whining like that. I would assume a broken/faulty component somewhere. Your are most likely going to have to tear into it to figure anything out