Running Rough, Need Group Analysis
02-18-2009, 12:22 PM
#1
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Running Rough, Need Group Analysis Car is a 1995 Impala SS 154,XXX miles. Ive owned it sense Jan 2008. I'll do my best to describe what its doing...
It will start fine, run fine for about 2-3 mins till it gets warm and finds true idle. Then it starts to "choke". Some cylinders aren't going off. The car wont die, and when you jump on the throttle it will go in and out, like run fine for 2 seconds then all the sudden im without a couple cylinders. I can turn the car off let it sit for a minute or 2 then turn it back on and its fine for 2-3 minutes, then it does it again.
I just got the car scanned at pep boys to see if i could pull a code and none came up.
I have about 41lbs of fuel pressure, and didn't find any leaks down the intake piping.... Im thinking its a sensor due to the fact it wont act up till it gets warm, and i can turn it off and its fine for a minute or 2. But don't know for sure.
So need some ideas for all of you on what it might be, money is tight so i don't wanna replace something that isn't the issue.
It will start fine, run fine for about 2-3 mins till it gets warm and finds true idle. Then it starts to "choke". Some cylinders aren't going off. The car wont die, and when you jump on the throttle it will go in and out, like run fine for 2 seconds then all the sudden im without a couple cylinders. I can turn the car off let it sit for a minute or 2 then turn it back on and its fine for 2-3 minutes, then it does it again.
I just got the car scanned at pep boys to see if i could pull a code and none came up.
I have about 41lbs of fuel pressure, and didn't find any leaks down the intake piping.... Im thinking its a sensor due to the fact it wont act up till it gets warm, and i can turn it off and its fine for a minute or 2. But don't know for sure.
So need some ideas for all of you on what it might be, money is tight so i don't wanna replace something that isn't the issue.
02-18-2009, 01:16 PM
#2
Car is a 1995 Impala SS 154,XXX miles. Ive owned it sense Jan 2008. I'll do my best to describe what its doing...
It will start fine, run fine for about 2-3 mins till it gets warm and finds true idle. Then it starts to "choke". Some cylinders aren't going off. The car wont die, and when you jump on the throttle it will go in and out, like run fine for 2 seconds then all the sudden im without a couple cylinders. I can turn the car off let it sit for a minute or 2 then turn it back on and its fine for 2-3 minutes, then it does it again.
I just got the car scanned at pep boys to see if i could pull a code and none came up.
I have about 41lbs of fuel pressure, and didn't find any leaks down the intake piping.... Im thinking its a sensor due to the fact it wont act up till it gets warm, and i can turn it off and its fine for a minute or 2. But don't know for sure.
So need some ideas for all of you on what it might be, money is tight so i don't wanna replace something that isn't the issue.
It will start fine, run fine for about 2-3 mins till it gets warm and finds true idle. Then it starts to "choke". Some cylinders aren't going off. The car wont die, and when you jump on the throttle it will go in and out, like run fine for 2 seconds then all the sudden im without a couple cylinders. I can turn the car off let it sit for a minute or 2 then turn it back on and its fine for 2-3 minutes, then it does it again.
I just got the car scanned at pep boys to see if i could pull a code and none came up.
I have about 41lbs of fuel pressure, and didn't find any leaks down the intake piping.... Im thinking its a sensor due to the fact it wont act up till it gets warm, and i can turn it off and its fine for a minute or 2. But don't know for sure.
So need some ideas for all of you on what it might be, money is tight so i don't wanna replace something that isn't the issue.
