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Low speed misfiring on 2014 rlx

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  #1  
Old 02-03-2022, 06:37 PM
dque54's Avatar
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Join Date: Feb 2022
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Unhappy Low speed misfiring on 2014 rlx

Hi
I have a 2014 Acura RLX with about 83,000 miles. Once the car warms up, the engine starts to misfire, only when I accelerate. I just recently replaced the spark plugs, and ignition coils. Before that one of the first things I did was to use gas additives, (Juel Fuel, and DB-K44), about 6 times. There are no indicators on the dashboard. I can see the tachometer drop a little when the misfiring happens. I usually back off the gas when this happens, but often I can push through the misfire depending on how I step on the gas. It doesn't happen when I'm going up a hill, and most of the times I can push through the misfire to go faster (50 mph and higher. The is no misfiring while I'm cruising on the highway at 60 or more.
 

Last edited by dque54; 02-03-2022 at 06:52 PM.
  #2  
Old 02-07-2022, 12:17 PM
Join Date: Jan 2019
Posts: 5
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Originally Posted by dque54
Hi
I have a 2014 Acura RLX with about 83,000 miles. Once the car warms up, the engine starts to misfire, only when I accelerate. I just recently replaced the spark plugs, and ignition coils. Before that one of the first things I did was to use gas additives, (Juel Fuel, and DB-K44), about 6 times. There are no indicators on the dashboard. I can see the tachometer drop a little when the misfiring happens. I usually back off the gas when this happens, but often I can push through the misfire depending on how I step on the gas. It doesn't happen when I'm going up a hill, and most of the times I can push through the misfire to go faster (50 mph and higher. The is no misfiring while I'm cruising on the highway at 60 or more.
Change the IAT and the CTS intake air temp sensor and the coolant temp sensor and recheck the condition they re abt 40 each from pep boys
 
  #3  
Old 02-08-2022, 10:42 PM
dque54's Avatar
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Thank you. I'll post what happens.
 
  #4  
Old 02-28-2022, 09:53 PM
Join Date: Jan 2019
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chk your vaccum hoses 2 ALL of them
 
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