Pontiac G5 Engine Power Reduced

A common cause of the reduced power message and trouble codes p0106 p0651 and p2135 is a wire chaffing issue that shorts the reference voltage to ground and prevents the pcm from getting accurate sensor data from the map and accelerator pedal positon sensor.

Pontiac g5 engine power reduced. Doing some research and i see that it has to do with 5 volts reference and i also see that it has to do with like 4 other sensors too. Reduced engine power causes. My 07 g5 says reduced engine power and check englne light comes on why is that. Gm and gmc vehicles have been plagued by throttle position sensor problems along with the dreaded reduced engine power or limp mode.

If you have the reduced engine power light then there are going to be some diagnostic trouble codes stored in your obd ii system. Check for a wire rub through condition at the oil filter housing. Reduced engine pwr at wits end with pontiac g5 i still remember my first and only experience with reduced power it turned out to be a wire was not plugged all the way in on the transmission. If its a short in a wire causing it that s a hard problem to find give the shop some time to find it but if you are unhappy with the current shop do take it in to another one.

This is great news since it helps narrow down where the ecu thinks that the problem is. A good code scanner is really cheap and can make the process a whole lot smoother. 2007 pontiac g5 it has around 143 000 miles recently bought from a private party owner and whenever i start in 1st gear it sputters as if i am driving a manual for the first time. They told him at autozone that the car needs the fuel tank pressure sensor.