Heated 02 power?
10-01-2022, 01:34 PM
#1
Member
Thread Starter
Join Date: Jan 2003
Location: Long Island N.Y
Posts: 380
Received 12 Likes
on
12 Posts
Car: 1988 Pontiac GTA
Engine: 5.7 l98
Transmission: 700r4
Axle/Gears: BW 9bolt with torsen carrier
Heated 02 power?
I am about to install heated 02 sensor , where is everyone hooking the power side? What is the best option for ignition on power?
10-01-2022, 02:30 PM
#2
Supreme Member
iTrader: (8)
Join Date: Oct 2001
Location: Il
Posts: 11,723
Received 773 Likes
on
520 Posts
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Heated 02 power?
I ran a fused wire from the fuse box "ign" terminal out to the 02
The following users liked this post:
george88gta (11-26-2022)
10-04-2022, 03:17 PM
#4
Moderator
Re: Heated 02 power?
It's been a while. I also found somewhere in the fuse box (might have been "ign" terminal) that only got power with the car running. Used that and been fine for years.
The following users liked this post:
george88gta (11-26-2022)
10-04-2022, 06:16 PM
#6
Re: Heated 02 power?
Instead of punching through the firewall, the power supply to the cold start injector (purple wire) is already in the engine compartment, is not used for more than a couple seconds, and is fused at 3A.
Just for grins, I just tested a spare sensor heater on a regulated bench supply, and at 14.2V (typical charging voltage) the heater current stabilized at 880mA after a few second of the initial surge to about 1.3A. The cold start circuit should handle that nicely.
Just for grins, I just tested a spare sensor heater on a regulated bench supply, and at 14.2V (typical charging voltage) the heater current stabilized at 880mA after a few second of the initial surge to about 1.3A. The cold start circuit should handle that nicely.
The following users liked this post:
george88gta (11-26-2022)
10-04-2022, 06:35 PM
#7
Member
Thread Starter
Join Date: Jan 2003
Location: Long Island N.Y
Posts: 380
Received 12 Likes
on
12 Posts
Car: 1988 Pontiac GTA
Engine: 5.7 l98
Transmission: 700r4
Axle/Gears: BW 9bolt with torsen carrier
Re: Heated 02 power?
Instead of punching through the firewall, the power supply to the cold start injector (purple wire) is already in the engine compartment, is not used for more than a couple seconds, and is fused at 3A.
Just for grins, I just tested a spare sensor heater on a regulated bench supply, and at 14.2V (typical charging voltage) the heater current stabilized at 880mA after a few second of the initial surge to about 1.3A. The cold start circuit should handle that nicely.
Just for grins, I just tested a spare sensor heater on a regulated bench supply, and at 14.2V (typical charging voltage) the heater current stabilized at 880mA after a few second of the initial surge to about 1.3A. The cold start circuit should handle that nicely.
Trending Topics
The following users liked this post:
george88gta (11-26-2022)
10-05-2022, 02:19 PM
#9
Moderator
The following users liked this post:
george88gta (11-26-2022)
Thread
Thread Starter
Forum
Replies
Last Post