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Start then runs rough

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Old Nov 2, 2017 | 02:37 PM
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Default Start then runs rough

Started my Z up today warming it while let the dogs out. Then put in first and all hell breaks loose. Running rough would not stay started. No codes.
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Old Nov 4, 2017 | 12:43 PM
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A little more explanation please. What did you mean by "all hell breaks loose"?
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Old Nov 4, 2017 | 01:00 PM
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Originally Posted by CactusCat
A little more explanation please. What did you mean by "all hell breaks loose"?
It was idling fine as soon as I put it in gear it started to sputter and miss and would not start and when I tried it to start it I had the pedal to the floor and it sputtered and died. No codes were showing. It’s like it’s miss firing.
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Old Nov 4, 2017 | 02:22 PM
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Did you pull the codes afterwards? Still nothing showing? If not, then detective work is required. #1. When you turn the key on, do you hear the fuel pump prime for 2 seconds then turn off? You might have to remove the schrader valve on the fuel rail, attach a mechanical guage and see if you have fuel pressure. If you don't, then you track down that issue. Does the car crank ok but not start? #2. Have you checked your battery for correct voltage? #3. What is the status of the security light when you turn the car on? I can envision a variety of things causing this but each one would need to be tracked down, but most all of them throw some sort of code. A loose ground wire on a fuel pump could cause this issue as well. Have you experienced gas gauge problems in the past? Could you be out of fuel? Not trying to be a smart ***, just trying to explore the options.
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Old Nov 4, 2017 | 02:30 PM
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No codes. Filled up couple days ago I think it was 3/4 full chevron 93 octane. I did not notice the security light or battery voltage I will run those down to rule out I will check grounds also. I did not on the fuel pump not something i would listen to to be honest. It was running fine for 10 min. Like I said soon as I put back into gear that’s when it started to miss fire and pump the pedal to keep it started. I will look into the suggestion you made
Thank you

Last edited by stingray76l82; Nov 4, 2017 at 02:34 PM.
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