I have CEL and it was a ecu code 1. So i replaced the the O2 sensor and resetted the ecu and still no luck. The car wants to idle around between 550-650 rpm. The car also has no power from idle to about 3200 rpm and all of sudden i have power and that last only until about 5.5k-6.25k rpm. One last thing today on the freeway i couldnt go pass 100 mph. I have no idea what is wrong.

 

i really need help

 

can i please get some advice

 

fuel injector ? does it feel like its miss firing ?

 

have you checked your timing?

 

What kind of motor? Vtec or non? Is the CEL still on after changing 02?

 

its a stock gsr and yes the CEL is still on