My gosh darn vehicle runs like ****. Its seems to be misfiring even after a base tune.

Spark wires on correct
opti has maybe 18k on it
coil could be bad
injectors on correctly
96 opti can only go on 1 way.

Shoot me some suggestions

Before the tune it would never idle on its own, and it did for the first time today. Also my ses light flashes.

tune: o2 delete, adjusted for bigger injectors, thats all i know of.
all suggestions may help

 

Is your exhaust on the car already? If not, where are your O2's in relation to the open air behind them...

 

All i have on the car so far is long tubes with the longer o2's connected. Also could incorrectly adjusted rockers be the cause of sputtering or msfire?

 

You need a good tune, not a rear 02 delete tune. And if you are running open headers fresh air is hitting the 02's causing them to read incorrectly.

 

Try unplugging the O2's and see how it runs.

 

You cant run open headers in closed loop. To much fresh air by the O2's will cause a false lean condition and cause the PCM to add more fuel. Put some extentions on those headers.

 

I put my y pipe on and it began to run a lot better I still need a bit more fuel on the bottom end. I can start and it would idle on its own but after driving it would die. It also needs just a touch of gas to start. I'm guessin a little bit of timing adjusted also.

Thanks for your suggestions.