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first tell what chokes mean. (it means 2 things so I ask)
2006 never got a full tune up on the engine in 16 years./?
uphills. power loss = chokes sure.but
for example, engine misfires violently felt and heard.???
or no misfire but lacks power just like dragging 2000lb dead weight.
we call that bogging, like walking in swap or bog.
bad spark loves to fail up hills (no new spark parts) due to higher combustion pressures.
bogging is caused by low fuel pressure, the filters is packed up
or air filter never changed out. again tune up parts.
the best ACT is get the car serviced in a real shop.
tell them it lacks power on hills , hot engine
the cold engine evidence told , hints at weak fuel pressure.
EFI FPR might be bad, fuel pressure Regulator, and more to find more takes tools you do not have,.
ok, sounds like you covered the basics with spark. I would check in this order; 1-Throttle position sensor, sometimes it wears out and you get poor signal back to computer, 2-clean MAF sensor, 3-check/clean IAT (intake air sensor). If this still doesn't help then I would check your fuel flow....but i'm thinking its your tps. Two screws will change that out quickly.
Do you have an engine light? Throwing a code?
Just does this at idle or when driving/acceleration?
Acting strange changing symptoms (E.G.--idle to acceleration to black smoke out exhaust, etc.)? Plenty of Gas in tank?
I am thinking: No engine light
Clog in fuel filter
intermittent fuel pump problem
A vehicle starting sensor (E.G.--Throttle Position Sensor (TPS))
Main computer
Engine Light: Pull Code
Sensor
Have you checked the air inlet sensor on the air filter. If this fails the engine goes into safety mode which it seems has happened. I don't know the specifics of the Santa fe but this is a feature of most modern electronic engine systems.
no idea without a play,sorry i know this isnt the answer you need but without my head under the bonnet ? firstly try a new fuel filter and is the primer pump in the tank working ¿ if fitted as no year stated .is it common rail or a earlier version with a injector pump .Are you in the UK where bio muck is used for the diesel .
What engine code is stored in the computer? You may have a bad TPS (throttle postioning sensor), or a bad O2 sensor. Auto Zone can retrieve the code for you, and tell you what sensor it is related to.
Try to clean your car's air filter. If doing that doesn't help, change your fuel filter. Something is choking the engine and its either your air filter or fuel filter. Also try changing spark plugs..
Try replacing the Mass Air Flow Sensor, it is in line from the air filter box to the carb. Could have come unplugged or gone bad. They are not made to be cleaned or touched inside (that usually leads to damaging it). Good luck.
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