Originally Posted by
Normt18101
Thank you zip439 for your response.
I do have a 2005 crossfire srt6. The air pump is running at cold start. The results from the live data on the o2 sensors is as follows: (when pump is running)
O2 s1 (passenger side) .090 - .750volts
O2 s2 (drivers side) .465 - .470volts
By the way I live in Goodyear Arizona.
Please let me know what you think.
thanks,
Normt18101
Okay I believe those numbers look normal, but the drivers side is a bit higher than it should be in closed loop and cold startup. It may indicate there is a problem with the drivers side. You should have a low voltage with a lean condition. Lean should be about .2 volts and rich is up about .6 to .9 volts. The air pump will run while the engine is warming up, probably not much over one minute and then it should shut off. Does the air pump shut off ?
Thing is with O2 sensor numbers they fluctuate up and down quickly so it is hard to get a average voltage. When the air pump shuts off you hopefully will see about a 25% increase in the voltages. It's hard to tell.
The vacuum is fed to the solenoid valve blue inlet from the rear of the car through a clear vacuum line that runs to the rear of the car under the passenger fuel rail. The solenoid valve is controlled by the PTCM. There is another clear vacuum line that runs under the supercharger between the two switch over valves (The two gold colored large valves that the large hose and metal tubing connect to the air pump). It is easy to tell if the solenoid valve has vacuum and feeding the vacuum to the switch over valves at startup. Simply pull the vacuum line off the switch over valve and put your thumb over the end of the hose. In your situation I would pull the line off the driver's side switch over valve first. You can feel the vacuum when you remove your thumb from the hose. That vacuum should only be there when the air pump is running at the cold start up. So that will test the vacuum lines and the solenoid operation, but it doesn't tell you if the switch over valves are opening to allow the air pumps pressure into the exhaust system. That's what monitoring the O2 sensors can tell you, but as I said that's difficult to determine by just observing the O2 sensors output voltage.
Do you have any other DTC ?? Good Luck!