Are you online, I need a second opinion on 2008 Accent
. Replace bent valves due to timing belt
break, changed out all sensors (crank, cam, osv, coolant temp sensor) plus timing belts, drive belts, tensioners, cam/crank seals). Car runs awesome, but I cant make P0128 go away, keeps coming back after 50 miles of driving. Checked many times the coolant level, took out thermostat (OEM) and it opens at 180 over the stove.
When I check the circuilt connection to coolant temp sensor, here is what I got. Multimeter blk pin to ground/negetive terminal and red pin to pink wire going to coolant temp sensor:
Car off, sensor disconnected: 0 volts
Car on, sensor disconnected: 5.5 volts
Car off, sensor connected: 0 volts
Car on, sensor connected: 3.1 voltsThe sensor runs around 190 degrees at operating temp, I checked with infrared thermometer.When I checked coolant temp sensor with car under 70 degrees, at start up, the voltage jumps around alot and after 5 mins it stablizes, if you need those specs, I can get them.What do you think? I here this car needs a ECM update but if so, shouldn't have set code before the timing belt break?I have spent many hours on this , I dont have professional grade scan tool just basic one, does not show time code was set or temperatures, or any other details.