P0300...man this sucks.
#1
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So this Friday on the way home my truck was running fine. I stopped at the store to get a 12 pack, got back in and started the truck up and noticed it was running rougher than usual, but didn't think too much of it.
Had to get up early Saturday for a code update class and the truck was running like ****.
First thing Sunday morning I got up and scanned for misfires which I ended up finding on 4 and 5. Both coils were firing so I put new plugs in 4 and 5...still misfires. I put a meter on the 4 and 5 injectors and much to my dismay, they both read open circuit...great.
Several questions here:
1) Has anyone else had two injectors fail simultaneously?
2) Its going to be about a week before I can get new injectors, and this is my DD. If the injectors aren't spraying at all can I manage to limp back and forth to work without risking damage to internals?
3) Can bad tuning fry fuel injectors?
Had to get up early Saturday for a code update class and the truck was running like ****.
First thing Sunday morning I got up and scanned for misfires which I ended up finding on 4 and 5. Both coils were firing so I put new plugs in 4 and 5...still misfires. I put a meter on the 4 and 5 injectors and much to my dismay, they both read open circuit...great.
Several questions here:
1) Has anyone else had two injectors fail simultaneously?
2) Its going to be about a week before I can get new injectors, and this is my DD. If the injectors aren't spraying at all can I manage to limp back and forth to work without risking damage to internals?
3) Can bad tuning fry fuel injectors?
#5
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Turns out my troubleshooting skillz need some work:
![](http://i499.photobucket.com/albums/rr351/scnokc77/DSC01121.jpg)
Lesson to be learned here (for me anyway) is to slow down and follow all troubleshooting steps before buying ****![Icon Lol](https://www.performancetrucks.net/forums/images/smilies2/icon_lol.gif)
Ah by the way, just because 2 cylinders are misfiring at idle doesn't mean both will misfire while logging on the street.
![](http://i499.photobucket.com/albums/rr351/scnokc77/DSC01121.jpg)
Lesson to be learned here (for me anyway) is to slow down and follow all troubleshooting steps before buying ****
![Icon Lol](https://www.performancetrucks.net/forums/images/smilies2/icon_lol.gif)
Ah by the way, just because 2 cylinders are misfiring at idle doesn't mean both will misfire while logging on the street.
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Now that REALLY sucks!! Wow im sorry man...hmmm. If you want to work in a refund im game. I dont like giving people the short end for a miss calculation. I mean if youre ok with keeping those injectors thats all the better but if you want to do another exchange let me know.
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#9
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Now that REALLY sucks!! Wow im sorry man...hmmm. If you want to work in a refund im game. I dont like giving people the short end for a miss calculation. I mean if youre ok with keeping those injectors thats all the better but if you want to do another exchange let me know.
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Man I had same exact thing happen to my s10!
I was goin to suggested this when I read it last time and I was like nah seems like he has it figured out
I did same thing u did only I thought it was bad 02 sensor bc of exhaust leak then dad looked at it and said " u suck as a mechanic" I was friggin embarrassed as hell! Glad to see I am not the only one who jumps to conclusion!
Glad u got it figured out
I was goin to suggested this when I read it last time and I was like nah seems like he has it figured out
I did same thing u did only I thought it was bad 02 sensor bc of exhaust leak then dad looked at it and said " u suck as a mechanic" I was friggin embarrassed as hell! Glad to see I am not the only one who jumps to conclusion!
Glad u got it figured out
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