Login Register

Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Fix one thing , break another - P1875
#24
Here is the problem, more clear,
1: this car has no integrated GPS, so never ever knows the truth ever. (GPS does not lie and is your own truth , not using stop watch and mile markers for speed)
2: it knows dead sensors for sure. dead takes no CPU brains at all, just 0v = dead. or stuck at 5v. etc/
3: the TCM+ECU pair do know if the 2 sensor do not agree by 10km/mile or? and 1875 happens. (both wrong is good, one wrong is fail) note both wrong is FAIL too, (ticket getter car)
4 It never ever knows which one is off in RPM see line 1. (it can not know this)
5: The fact is both sensors must read the same (even if both lie the same) that is a fact (within the 10km/m rule spec)

there are more DTC errors here not seen by you, unplugging VSS1 then VSS2 and drive 2 driving cycles each from cold engine, see new DTC you will..
The FSM manual show just it takes to fail any DTC, driving cycles and all that. (no Car like this knows truth or things off (inaccurate) it only know dead,things. there are some crude exceptions, like MAF reading wrong or 02 sensor is off, one or the other are off it thinks and is. (this is complex here)
all sensors can be good , dead, stuck or off and intermittent. it takes a good tech to find truth (if not good or easy dead)

P0500 , VSS dead.
P0722 ,.VSS dead
or other, in your FSM.
building any custom cars (heavy mods) you need the FSM on both cars, if using donor electrics, if not just the J18 car FSM. I can only assume you do ..
http://www.fixkick.com
Reply


Messages In This Thread
RE: Fix one thing , break another - P1875 - by fixkick - 02-04-2020, 03:21 AM

Forum Jump:


Users browsing this thread: 4 Guest(s)