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I have a 2005 pontiac g6 and the engine has no acceleration like the cat converter is plugged and has an engine code p449 can you help

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CODE PO449 IS EVAP VENT SOLENOID CONTROL CIRCUIT MALFUNCTION CONDITIONS.CHECK FUSE.IF OKAY.VENT SOLENOID FAILED.

Posted on Sep 14, 2010

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1 Answer

How can I tell which catalytic converter is bad on my 2005 Pontiac g6


If its restricted there will be a loss of engine power. If exhaust has the rotten egg smell converter is over worked due to excessive fuel, check fuel system. Restriction can be checked with a vacuum gauge. Connect gauge to full manifold vacuum, speed engine to about 1800 rpm's vacuum should rise if vacuum decreases there is a restriction in the exhaust system.

May 18, 2014 | 2005 Pontiac G6

1 Answer

What does it mean when the service engine light is blinking in a 2005 Pontiac g6?


most of the time when your check engine light blinks it means your having a converter melt down. you need to find out the cause of it. most of the time its something to do with your emission system. a simple computer diag from a local parts store might tell you what sensor is not working right. or you can go to your mech and it will only take a min to check out the codes.

Nov 11, 2012 | 2005 Pontiac G6

1 Answer

P0420 error code


The fault code P0420 is caused by the catalytic converter falling below minimum efficiency level as measured by the catalytic converter monitor sensor (similar to an O2 sensor, but different function). The cat is not covered for 120,000 miles. Here is the correct information on the warranty of the catalytic converter.
The Federal Emission Warranty covers that part for a period of 8 years or 80,000 miles, whichever occurs first. So you are out by years in service and by miles.

Jul 28, 2017 | 2008 Pontiac G6

1 Answer

2006 Pontiac G6 shifting hard, engine very sluggish and mpg under 15.


You have a random engine misfire. P0300. That is the root cause. Basically this P0300 code means that the car's computer has detected that not all of the engine's cylinders are firing properly. This would also cause hard shifts due to low engine power.
Read on please.




A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. A P0302 code, for example, would tell you cylinder number two is misfiring. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why.
Symptoms:
•the engine may be harder to start
•the engine may stumble / stumble, and/or hesitate
•other symptoms may also be present
Causes:
•Faulty spark plugs or wires
•Faulty coil (pack)
•Faulty oxygen sensor(s)
•Faulty fuel injector(s)
•Burned exhaust valve
•Faulty catalytic converter(s)
•Stuck/blocked/leaking EGR valve / passages
•Faulty camshaft position sensor
•Defective computer

Apr 24, 2017 | Cars & Trucks

1 Answer

What could the po420 code mean on a 2005 Pontiac g6


Its possible there is a problem with the catalyst system.I would recommend having your catalytic converter checked to see if its bad.

Apr 08, 2011 | 2005 Pontiac G6

1 Answer

I too have a Pontiac G6 with a rattling catalytic converter. I was told that it need to be replace but is drivable by the Pontiac dealership. Today my car sound like a race car muffler and the check...


You'll want to go over your warranty information as emission systems have different warranties than the rest of the car. It might be possible to have the cat replaced for free if it still qualifies under the EPA warranty.

Anyway, you probably blew the exhaust gasket before the cat in question as there is too much back pressure in there since the cat is likely clogged.

Feb 25, 2011 | 2005 Pontiac G6

2 Answers

Sluggish engine pontiac g6


Sounds like a transmission issue, have the car scanned for ant transmission related codes. Most transmission shops will check to make sure your transmission is working 100% free of charge. With what you have described, almost sounds like you don't have 1st or 4th gear and your transmission is running on 2nd and 3rd gear. Easy fix if the 1st-4th solenoid needs to be replaced, or the wire harness has gone bad. Start with getting your car scanned and let me know if your transmission is starting on 2nd. Good luck

Jan 28, 2010 | 2006 Pontiac G6

1 Answer

Erg code displayed circuit a shorted?


what is the code u have? there are many codes related to EGR opearation, at least 6 diff ones.

Oct 02, 2009 | 2005 Pontiac G6

1 Answer

Pontiac G6 2005 - starts then stalls immediately


Chage the throtle possition senser.

Jul 03, 2009 | 2005 Pontiac G6

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