01-03-2019, 02:16 AM
cold idle speeds are the domain of the idle plunger (thermal auto cold idle speed controller
then it retracts and the PCM + ISC valve (electric) controls idle, at 800 rpm if AC/turned off.
the thermostat must hold temps steady at 180f or above, some have 200f thermostat. so...
301 misfire can be lots of things, spark coil or plug, injector or low #1 cyclinder compresssion, a gage is$20 in many stores.
tps calibrated, so that is not it.
then it retracts and the PCM + ISC valve (electric) controls idle, at 800 rpm if AC/turned off.
the thermostat must hold temps steady at 180f or above, some have 200f thermostat. so...
301 misfire can be lots of things, spark coil or plug, injector or low #1 cyclinder compresssion, a gage is$20 in many stores.
tps calibrated, so that is not it.
http://www.fixkick.com