Author Topic: Electrical issues  (Read 115 times)

0 Members and 1 Guest are viewing this topic.

Offline TurboCajun

  • Keith Theriot
  • Turbo Street Modified
  • *****
  • Posts: 324
  • PSI: 1
  • 6 Packed
    • View Profile
Electrical issues
« on: August 19 2019, 10:54:57 AM »
Car stared to stumble at idle and sometime shuts off, and also hard to start. all scan readings look fine except for battery voltage. so I know its the problem. I turned the key on and the volts on scan master go from 11v to 0v back and forth. gave the ECU panel a slap and it stopped. maybe time to replace the ECU pigtails  :( . once I get the car started and its stays running everything is fine. I have checked the battery cables and lines at the alternator,
85 GN -- Converted to 87 set-up using 66/72 turbo, front mount I/C, 80lb injectors,gn1 heads 14 bolt 1.65 roller rockers stud mount, ported intake with plate, fuel hot wire, 3" dp, running 24psi., alky kit, stroker 20 over, 212/206 roller,  best time 10.995 @ 121 1.56 60ft

Offline rhturbo

  • Bone Stock
  • **
  • Posts: 23
  • PSI: 0
  • Boost n00b
    • View Profile
Re: Electrical issues
« Reply #1 on: August 19 2019, 12:55:59 PM »
Did you try putting a meter right on the battery and then turn key to see if voltage drops ?

Offline Steve Wood

  • Turbo Street Outlaw
  • *******
  • Posts: 8279
  • PSI: 29
    • View Profile
    • http://www.vortexbuicks-etc.com/
Re: Electrical issues
« Reply #2 on: August 19 2019, 02:50:05 PM »
that's what you get for taking a picture of girls that call your car a Monty.


If the battery voltage stays constant, check the orange wire off the battery connector.


Then check the same wire at the ecm connector....i t's C16 at the end of the larger connector on the ecm.
Steve Wood

http://www.vortexbuicks-etc.com

A lot of broken parts does not make you a racer; it makes you a slow learner.

Offline daveismissing

  • Two Buicks- too little money$$
  • Turbo Street Outlaw
  • *******
  • Posts: 6247
  • PSI: 3
  • Two Buicks- too little money$$
    • View Profile
Re: Electrical issues
« Reply #3 on: August 19 2019, 03:32:49 PM »
You running a power logger? Maybe see how it behaves without?
-Drain plug by Earl Brown, custom oil pan by Rich's Auto

Offline TurboCajun

  • Keith Theriot
  • Turbo Street Modified
  • *****
  • Posts: 324
  • PSI: 1
  • 6 Packed
    • View Profile
Re: Electrical issues
« Reply #4 on: August 19 2019, 07:37:46 PM »
Lol Steve I didnít take those pictures that would get me in trouble.
Pull the ECM and wiggled every wire and all seems fine.
 :rock:
85 GN -- Converted to 87 set-up using 66/72 turbo, front mount I/C, 80lb injectors,gn1 heads 14 bolt 1.65 roller rockers stud mount, ported intake with plate, fuel hot wire, 3" dp, running 24psi., alky kit, stroker 20 over, 212/206 roller,  best time 10.995 @ 121 1.56 60ft

Offline Steve Wood

  • Turbo Street Outlaw
  • *******
  • Posts: 8279
  • PSI: 29
    • View Profile
    • http://www.vortexbuicks-etc.com/
Re: Electrical issues
« Reply #5 on: August 19 2019, 09:09:52 PM »
I thought you were being pretty bold to post those and then go home!  LOL...it's always good to look at the contacts on both sides of the connectors to be sure they don't have any green stuff growing on them...maybe replugging them cured the problem  :cheers:
Steve Wood

http://www.vortexbuicks-etc.com

A lot of broken parts does not make you a racer; it makes you a slow learner.