Power lose in the engine just for first 100 meters
Hi My problem with my kia portage is that without load engine execrates smoothly as I go for D position and start to move I can see power lose in the engine just for first 100 meters and then it appears again when shifting to upper speed but with out any load it goes very nice and sooth up to even red scale of engine rpm Please advice any recommendations
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no miles stated, 400k miles> or 100 = 100k?
if any 95 has 100k miles that be like a new car. no ?
5k /year, wow...
trouble is i cant drive car. and see this effect.
the issue is acceleration, right? :called Hesitations !
and only happens on a hot engine , yes?
and never happens wide open throttle.? correct? HAPPENS: only when tipping in the throttle at cruise. (then self corrects )
THE TPS sensors does that.
The TPS is a demand sensor. it sees driver DEMAND
acceleration, and this is detected and the PCM goes to ENRICH mode. this is done or the engine goes LEAN until the MAP BARO READINGS, catch up and correct fueling.
that is my wild useless guess. (not driven and me not scanning the PCM while it fails.)
The TPS is a rate of change sensor.
This is because all air meters made are slow.
The TPS hides this fact. until bad.
there are other causes,but im not there with my scan tool..
and (box of gauges)
Do you notice any check engine lights coming on the dash when this happens, also has the vehicle had any recent repairs or any reason why this may be happening? Any input from you is helpful. I will check my resources and see what we can find out. Please advise
Yes, that is normal operation for an engine. It needs to run at higher idle when cold and the computer does that through the temp sender. Make sure it's not excessive due to any vacuum leaks. This and the AC power loss would be exaggerated if the engine is not running correctly.
to chjeck it out you will need a automotive test meter which isnt cheap but it could be anything from a coil pack to a air flow meter sensor and without a play with it myself i honestly couldnt advise you ,if this is a american market vehicle then you may be able to drag a code or two but if its a europeon maket vehicle then forget it as they use the manufacturers diagnostic plug under the bonnet and it will be encrypted software ,yes they do have a OBDII but they just light up the machine as they only have a pos and neg wire running to them
Hi, you need to go and have the check engine light looked at. without look at the engine light i would guess that the egr valve is either plugged or bad. the engine light should give you a good idea of the problem.
If your check engine light is on, take the car to your local auto parts superstore and have them scan for the fault codes. Usually it is free. The fault code will tell you where to start to solve the problem. Hope this helps.