Sunday, May 28th, 2006 AT 12:37 PM
SUPERMAN
- MEMBER
- 1999 PONTIAC GRAND PRIX
What does the injector circuit consist of?
1999 Pontiac Grand Prix gt
1 Reply
JDL
- MECHANIC
- 16,098 POSTS
Sorry for the late reply.
You have the fuel injector. Voltage and ground for injector. Voltage for the injector usually goes hot with the key. The ground for injector is controlled by the computer, ground pulse. You can get a noid lite from auto store to check for injector pulse. The computer won't ground the injector if it doesn't see an rpm signal, also, your security system, where applicable, could cause an issue.
The injector itself could have a problem? The computer might have a problem? The injector wiring circuits could be open or shorted?
I realize this is an old post. You probably no longer own this vehicle. In the future hope you don't have any vehicle issues, but, if you do, keep the site in mind. They are always working to improve the site and it's free.
Have a good day.
You have the fuel injector. Voltage and ground for injector. Voltage for the injector usually goes hot with the key. The ground for injector is controlled by the computer, ground pulse. You can get a noid lite from auto store to check for injector pulse. The computer won't ground the injector if it doesn't see an rpm signal, also, your security system, where applicable, could cause an issue.
The injector itself could have a problem? The computer might have a problem? The injector wiring circuits could be open or shorted?
I realize this is an old post. You probably no longer own this vehicle. In the future hope you don't have any vehicle issues, but, if you do, keep the site in mind. They are always working to improve the site and it's free.
Have a good day.
SPONSORED LINKS
Was this helpful?
Yes
No
Sunday, March 22nd, 2015 AT 1:47 PM
Related Fuel Injector Content
Replace a Fuel Injector
Instructional repair video
Sponsored links
SPONSORED LINKS
