All times are UTC - 6 hours [ DST ]




Ask A Question Reply   
Author Message
 

contributions: 1
Radom until recently ... occurred once two years again and maybe once every 6-8 months. In the last couple of weeks it’s often.
Reduced engine power light will come on- will Not accelerate - must pull over - when brought to a stop, it’s running rough - turn car off for a minute or two and then it drives perfectly fine. Twice in the last week it did happen twice within a 6 miles in the morning. It seems to only happen in the morning or if car hasn’t been driven for a day. If I crank car and let it run for 15 minutes before driving it also doesn’t happen. Code showing is p1516


Share on FacebookShare on DiggShare on DeliciousShare on TechnoratiShare on TumblrShare on Google+
   
Reply with quote  
* Search   
 
User avatar

contributions: 2256
Images: 37
Location: Oregon
p1516 is a code for the throttle position sensor commanded position doesn't match the actual throttle position. You should have someone with a scanner with data stream capabilities and drive the vehicle and graph the throttle sensors.

verify the power and grounds. Watch the throttle sensors and see if they match. Watch for glitches in their graphs. Breaks in the connector wiring happens. Watch the sensors while you wiggle the wire harness for the throttle body. The throttle bodies do go out at times.

Have you used your car to jump another car or had to have your car jumped with someone else's car? That's a big problem now days. the spike can damage the computer and/or modules. If some one asks you to help jump their car, please say "no". They won't pay for the damage that can result to your car because it can run into the hundreds of dollars. Buy a battery pack made for jumping low batteries. They're much cheaper that the car repairs I have seen from people that jumped someone else"s car.


   
Reply with quote  
Ask A Question Reply   

   Similar Topics   Author   Replies   Views   Most Recent 
New Articles View the first reduce power light on for a 2006 grand prix 3800 seris v6

in Pontiac Grand Prix

bigemike

3

940

Sun May 27, 2018 6:13 pm

OldPaul View the latest

New Articles View the first Grand Prix engine stalls when turn on lights

in Pontiac Grand Prix

gunny

3

2774

Mon Nov 30, 2015 2:09 am

carriedi View the latest

New Articles View the first 1995 Grand Prix Gtp won't idle

in Pontiac Grand Prix

Pipeboy

1

1889

Wed Apr 13, 2016 12:46 am

carriedi View the latest

New Articles View the first Attachment(s) Pontiac grand prix low oil level light

in Pontiac Grand Prix

rockin49

1

3087

Tue Oct 27, 2015 10:14 am

carriedi View the latest

New Articles View the first 2002 Grand Prix, 3.1, Noise when accelerating

in Pontiac Grand Prix

goodwinbj

1

2334

Thu May 25, 2017 11:26 am

carriedi View the latest

New Articles View the first 89 grand prix ignition coil removal

in Pontiac Grand Prix

Benwagner25

1

671

Sun May 20, 2018 7:10 pm

carriedi View the latest

New Articles View the first 2004 grand prix rt rear pwr window broke

in Pontiac Grand Prix

mustang656man

1

742

Tue Jul 04, 2017 2:18 pm

carriedi View the latest


All times are UTC - 6 hours [ DST ]



Search for:
Jump to:  
Contact Us