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

"New" vats and ecm...worked now doesn't.

Thread Tools
 
Search this Thread
 
Old Apr 15, 2012 | 09:29 PM
  #1  
chevydrvr's Avatar
Thread Starter
Senior Member
iTrader: (1)
 
Joined: Mar 2009
Posts: 817
Likes: 1
From: Stoughton, MA
Car: 1985 camaro Z28
Engine: 305 5.0 V8 carburated
Transmission: 700r4
"New" vats and ecm...worked now doesn't.

I've been without my camaro for 2 weeks now. All because my vats module died on me. Today I put an ecm and a vats module from a car in the junkyard in my camaro and it started right up and ran. I took the throttle body apart and it sprayed some gas so I sealed it up and let it set after that. I went back and it did nothing. We had the starter relay jumped when it ran fine, and now it just sparks each time and melts that jumper wire. It makes no sense. The starter should atleast work when it's jumped. It did for two weeks, now it won't. Any ideas?

Last edited by chevydrvr; Apr 15, 2012 at 09:39 PM.
Reply
Old Apr 16, 2012 | 12:12 AM
  #2  
vetteoz's Avatar
Supreme Member
20 Year Member
iTrader: (13)
 
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Re: "New" vats and ecm...worked now doesn't.

Originally Posted by chevydrvr
had the starter relay jumped and now it just sparks each time and melts that jumper wire. ?
Would indicate you have a dead short to ground somewhere on that wire to the starter solenoid
Put a DVM on it and see if goes to ground

Originally Posted by chevydrvr
. It makes no sense. The starter should at least work when it's jumped.
You are not jumping the starter ; only the wiring TO IT
Confirm problem is not within the starter itself by running a heavy wire from terminal ( purple ) on starter to the batt ,
touch on the POS terminal ( out of gear ) and see if engine cranks.
If starter works ;problem is with wiring from relay to starter,
if that jumper wire burns out also ;problem is with starter
EASY
Reply
Old Apr 16, 2012 | 05:12 AM
  #3  
chevydrvr's Avatar
Thread Starter
Senior Member
iTrader: (1)
 
Joined: Mar 2009
Posts: 817
Likes: 1
From: Stoughton, MA
Car: 1985 camaro Z28
Engine: 305 5.0 V8 carburated
Transmission: 700r4
Re: "New" vats and ecm...worked now doesn't.

How do I use a volt meter to see if it went to ground?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
junior419
TBI
14
Apr 7, 2025 11:35 AM
gta892000
TPI
13
Aug 11, 2019 11:16 AM
sahlomonic
Electronics
7
Sep 20, 2015 07:15 PM
Racerx974
Tech / General Engine
7
Sep 19, 2015 10:16 AM
Winchester1094
Engine/Drivetrain/Suspension Wanted
0
Sep 15, 2015 09:48 AM




All times are GMT -5. The time now is 10:42 AM.