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Random backfire through intake

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  #1  
Old 07-25-2016, 08:28 PM
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Default Random backfire through intake

I have a 96 accord lx f22b2 5spd when I go to take Off sometimes it will backfire through intake I checked everything there's no codes I checked timing its where is supposed to be it doesn't do it all the time it's just random anyone run into this problem and was able to fix?
Here's what I done so far plugs replaced ,ignition coil replaced, distributor cap and rotor button ,I only run premium I keep injectors cleaned using fuel service treatment by Wynn and keep the throttle body clean atleast every 6 months and I use 5w-30 synthetic blend oil .
 

Last edited by Accordnation; 07-25-2016 at 08:33 PM.
  #2  
Old 07-25-2016, 10:41 PM
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I would not think that premium fuel to be necessary for the LX, certainly 86 octane should be sufficient
 
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Old 07-26-2016, 07:51 AM
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Three possibilities:
  • The timing is far too advanced compared to factory spec.
  • The timing belt jumped a tooth.
  • One or more burned intake valves.
 
  #4  
Old 07-26-2016, 11:16 AM
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Now says its one of the three possibilities wouldn't it do it all the time not just randomly
 
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Old 07-26-2016, 11:34 AM
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I'm moving this over to General Tech. The "new member" forum is mostly for welcome & introductions.
 
  #6  
Old 07-26-2016, 12:12 PM
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Originally Posted by Accordnation
Now says its one of the three possibilities wouldn't it do it all the time not just randomly
Initially, no, but as time goes on the issue should worsen.
 
  #7  
Old 07-26-2016, 12:19 PM
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Running premium won't help your engine. You can save money by using regular octane and run the fuel injector cleaner occasionally.

My suggestion to diagnose the problem is to take a look at the PCM data. The 96 accord was first to get an OBD2 connector that is behind the ashtray. You may want to purchase a cheap scanner or a bluetooth OBD2 reader and monitor with your cell phone.
 
  #8  
Old 07-26-2016, 02:18 PM
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It's been doin since I bought the car and I bought two years ago and it haven't gotten worse
 
  #9  
Old 07-26-2016, 02:21 PM
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To be honest with u I save more money using premium it cost less to fill up with premium than regular or mid-grade it cost me 30 to fill up with regular before and since I been using premium it only cost no more than $22 and I only get my fuel from one gas station it's bp
 
  #10  
Old 07-26-2016, 02:23 PM
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I have looked at the data using my scan tool I have I checked for misfires and it didn't do it while I had the scan tool connected and was driving not once did it backfire
 


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