Cylinder 1 and 4 Misfire detected
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Junior Member
Joined: Jun 2018
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Vehicle: 2001 Hyundai Tiburon
Cylinder 1 and 4 Misfire detected
I drive a 2001 Hyundai Tiburon (RD2) and i've been having my "engine" light on for a couple of weeks now, maybe a month at this point. I've noticed that the "check engine" light turns on but at times it turn off until I accidently rev the engine a little too much and the light comes back on. I really hate seeing the light on and I don't know what the issue could be
ps: I've changed the Spark Plugs and ignition coil, the wire tubes seem to be in good condition so I don't think that's the issue. Could it be a faulty sensor?
ps: I've changed the Spark Plugs and ignition coil, the wire tubes seem to be in good condition so I don't think that's the issue. Could it be a faulty sensor?
Last edited by Kawaii; Jun 20, 2018 at 12:28 AM. Reason: misspelling and grammar
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From: Pflugerville, TX
Vehicle: 2000 Elantra
The spark plug wires are what you should have changed first! They are inexpensive and easier than plugs or the ignition coil. Even a small pinhole in a spark plug wire is enough to foul up the ignition system, and they are very hard to see if you don't know what sort of thing to look for.
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Junior Member
Joined: Jun 2018
Posts: 6
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Vehicle: 2001 Hyundai Tiburon
New NGK plug wites bought, they seem to have no effect on the engine. Light turned off when I started the car today but as I drove it the light came back on. Any other advise?
Senior Member
Joined: Mar 2010
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From: Denver Co
Vehicle: 1999 Hyundai Tiburon
Since cylinders 1 and 4 are misfiring, I think you were on track to at least test the coil. They should be one of the channels of your 2 channel igniter. I'd dig deeper. Any chance you have an extra used ecu that you know is good? The igniter for the coils are driven inside the OEM Ecu. I wonder if one of those igniters is going south, that could be your problem as well. They usually go out rather then die off, but I suppose it could happen slowly.
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From: San Antonio, TEXAS!!!
Vehicle: 01 Tiburon Turbo, 99 Tiburon F2E, 2013 Avalon XLE Touring
Since cylinders 1 and 4 are misfiring, I think you were on track to at least test the coil. They should be one of the channels of your 2 channel igniter. I'd dig deeper. Any chance you have an extra used ecu that you know is good? The igniter for the coils are driven inside the OEM Ecu. I wonder if one of those igniters is going south, that could be your problem as well. They usually go out rather then die off, but I suppose it could happen slowly.
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