help having problems car missfire

[william SS]

Went to start my car yesterday and all of a sudden its starts missing like crazy. Computer code read open #1 cyclinder misfire. So i took it to a chevy dealership and they said left bank all 4 injectors quit and showing open circut. Any idea what may of cause this and how to fix it?

[Danger731]

they gave you nothing else to go on ?

[TACE02]

All 4 on the left side quit??? do you have a SES or CES light illuminated. you may have a bad 02 sensor or cat. I see you have LTs with ORY. you did install extensions so your front 02s would reach, correct. did you get it tuned or install rear 02 sims.

[2001hawk]

I think we need to know if you have done anything to it recently? How many miles are on it? etc. You might try starting with checking grounds.

[william SS]

Yes all 4 went out on the left side turns out it was because i blew a fuse but dont what caused the fuse to blow so i replaced it and now everything works fine. But since i didnt actually find the problem and took the shortcut to fixing it i supposed it could possibly blow again. But i wasnt getting any ses or any thing like that. When i went to work it was fine, when i started it up after work it wasnt fine. It was like it could barely beath was weak. Oh nothing has been done to the car in 4 months and it has 40,600 miles on the clock.

[2001hawk]

With it having blown a fuse I would say that narrows it down to a wiring issue. Did you wash the car or clean the engine bay recently? Most of the wiring for the injectors should be in the convoluted tubing so I highly doubt chaffing would cause a short along that length of wire. That narrows it down a little more. Bad news is that most gremlins hide but never go away until you find the cause. So you are right in changing the fuse being only a shortcut.