Hres what I have, 98 Z that is misfiring something feirce. Pulled the codes and it said misfires on multiple cylinders and knock sensor. So I put new plugs in it and try but it didnt help. So then I start pulling everything to get to the knock sensor and the front one is not connected. Now I am trying to decide whether to put it back together and try it or replace the knock sensors. Also was wondering about the PCM going into limp mode could be caused by this and how to get it out of limp mode. Any help would be greatly appreciated. MIKE

 

Wouldnt it throw a code for the o2 sensor though if it was malfunctioning.

Thanks for the input

 

Just the SES light you were probably already witnessing from the knock sensor.

 

Out of all the misfire codes it threw, it only threw an insufficent HO2S Bank 1 Sensor 1 once. Otherwise, the car always indicated it as a misfire never anything else.

 

Check your bank 1 O2 sensors out as well. Mine went haywire after my head and cam install. I ended up moving the driver side bank 1 sensor to the rear. Problem went away, however I had no knock retard when autotapping it.