Electronics Need help wiring something up? Thinking of adding an electrical component to your car? Need help troubleshooting that wiring glitch?

Temporary vats fix

Thread Tools
 
Search this Thread
 
Old Mar 23, 2016 | 07:23 PM
  #1  
primergrey91rs's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2015
Posts: 5
Likes: 0
Car: 91 Camaro RS
Engine: 3.1 v6
Transmission: 700r4
Temporary vats fix

Hey, i was wondering: if i ripped the speaker off a headphone and plugged the positive wire into the vats signal wire to the ecu, would i be able to play a 30 hz tone and trick the ecu into thinking the vats is operational?
Reply
Old Mar 23, 2016 | 08:21 PM
  #2  
OrangeBird's Avatar
Supreme Member
10 Year Member
Liked
Loved
Community Favorite
iTrader: (1)
 
Joined: Feb 2012
Posts: 3,939
Likes: 801
Car: 1989 Firebird
Re: Temporary vats fix

No .
Reply
Old Mar 23, 2016 | 09:14 PM
  #3  
primergrey91rs's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2015
Posts: 5
Likes: 0
Car: 91 Camaro RS
Engine: 3.1 v6
Transmission: 700r4
Re: Temporary vats fix

Bummer, my vats module went bad, so I built a little circuit to send the 30hz signal to the ecu. Well i must have done something wrong, as i only have a basic understanding of electronics and the circuit i built stopped working after 4 or 5 times starting my car. So I ordered one on the interweb and I'm just trying figure something out for until it gets here as this is my daily driver
Reply
Old Mar 24, 2016 | 01:33 AM
  #4  
Vanilla Ice's Avatar
Supreme Member
20 Year Member
 
Joined: Aug 2002
Posts: 1,150
Likes: 39
From: ARIZONA
Car: 92 Trans Am Conv
Engine: LB9
Transmission: T5
Axle/Gears: 3.08
Re: Temporary vats fix

Why not go to radio shack and spend less than a couple dollars on some resistors and wire it in?
Reply
Old Mar 24, 2016 | 03:03 AM
  #5  
Veaceonee's Avatar
Senior Member
iTrader: (1)
 
Joined: Dec 2012
Posts: 808
Likes: 5
From: Tucson, AZ
Car: 88 GTA Notchback
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: don't know
Re: Temporary vats fix

First determine if the module itself or the lock cylinder. Then you either have to bypass the starter relay and get VATs deleted off your prom, or find the resistance in your key and put that resistance into the wiring going from the ignition (tricks the box into thinking the key is always there). Don't try "experimenting", that can really mess stuff up.

How did you come up with 30Hz? Where were you tapping it into?
Reply
Old Mar 24, 2016 | 07:59 AM
  #6  
primergrey91rs's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2015
Posts: 5
Likes: 0
Car: 91 Camaro RS
Engine: 3.1 v6
Transmission: 700r4
Re: Temporary vats fix

Originally Posted by Vanilla Ice
Why not go to radio shack and spend less than a couple dollars on some resistors and wire it in?
I had the resister bypass for a while and it stopped working. I'm rather certain it is the vats module that is bad, as I've tested continuity on all wires involved and they check out.
Reply
Old Mar 24, 2016 | 08:10 AM
  #7  
primergrey91rs's Avatar
Thread Starter
Junior Member
 
Joined: Mar 2015
Posts: 5
Likes: 0
Car: 91 Camaro RS
Engine: 3.1 v6
Transmission: 700r4
Re: Temporary vats fix

Originally Posted by Veaceonee
First determine if the module itself or the lock cylinder. Then you either have to bypass the starter relay and get VATs deleted off your prom, or find the resistance in your key and put that resistance into the wiring going from the ignition (tricks the box into thinking the key is always there). Don't try "experimenting", that can really mess stuff up.

How did you come up with 30Hz? Where were you tapping it into?
The resister bypass is no longer working. It is my understanding that when the proper resister value is read, the module itself sends a 30 hz signal to the ecu, upon recieving said signal the ecu enables the injectors. I'm talking about tapping into the blue wire that goes from the vats module to the ecu
Reply
Old Mar 24, 2016 | 02:47 PM
  #8  
Vanilla Ice's Avatar
Supreme Member
20 Year Member
 
Joined: Aug 2002
Posts: 1,150
Likes: 39
From: ARIZONA
Car: 92 Trans Am Conv
Engine: LB9
Transmission: T5
Axle/Gears: 3.08
Re: Temporary vats fix

My bin requires 33 - 66hz. If yours is the same you should be aiming for closer to 50hz.
Apparently yours is supposed to be a 30hz signal.
Or it could be a voltage issue.

Last edited by Vanilla Ice; Mar 24, 2016 at 02:58 PM.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
THIRDGEN87
Interior Parts Wanted
14
Aug 24, 2023 01:01 PM
knightinblackar
Electronics
3
Jun 6, 2016 05:24 PM
87gtaredonred
Cooling
18
Mar 31, 2016 12:31 AM
Lurbie
Electronics
3
Mar 21, 2016 08:57 PM
Terron Moore
V6
1
Mar 19, 2016 05:23 PM




All times are GMT -5. The time now is 01:24 AM.