2nd Gen Neon 2000 - 2005 2nd Gen Neon

Misfire detected

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Old Nov 6, 2007 | 08:40 PM
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zagloba
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Default Misfire detected

Hi all.
This is my problem few months back I did get the engine light on with p0303 code
"cylinder 3 misfire detected."
So I did change the spark plugs was nice for about a8 weeks and I got the same code P0303
again .
What is the problem car got 47000 m. on it, is this the injectors might need to be clean up .
Any advice will be apreciate.
 
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Old Nov 6, 2007 | 08:47 PM
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Default RE: Misfire detected

probably wires, what type of plugs did you use?
 
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Old Nov 6, 2007 | 09:19 PM
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Default RE: Misfire detected

when I had "cylinder one misfire" code pop up... I ended up replacing the Plugs AND wires...have had no problems since
 
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Old Nov 6, 2007 | 11:47 PM
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Default RE: Misfire detected

I use the bosh platinium plugs .
any recomendation on wires and plugs ?
thx .
 
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Old Nov 7, 2007 | 12:04 AM
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Default RE: Misfire detected

Dont run platinum plugs in neons. They aren't recommended. I believe we have a write-up in the stickies about this:

Found in "The Official 2nd Gen FAQ and Performance Thread" thread.

ORIGINAL: 03neonRT

Q: What type of spark plugs should I use and what gap?
A: Use either stock Champion or NGK Iridium and gap them to 0.035”-0.040”. The Neon’s waste spark ignition system sees neither benefit nor gain from Platinum or “Split-fire” plugs. In some cases, misfire and premature spark plug deterioration can result when Platinum plugs are used on the 2.0L SOHC engine.
Your problem might be as simple as the plugs themselves. Stick with stock champs (imho). If that doesn't fix it, new wires are indeed in order.
 
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Old Nov 7, 2007 | 12:21 AM
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ORIGINAL: zagloba

I use the bosh platinium plugs .
any recomendation on wires and plugs ?
thx .
well there's your problem, i bet you went to autozone and theypushed those F$%&ing bosh plugs on you like no tomorrow. i just love how they tell everyone they are OE, NOBODY uses bosh for OE cept for Porshe, but those were designed by porshe and only built by bosh. Bosh sucks[sm=chairshot.gif]

sorry venting
 
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Old Nov 7, 2007 | 12:44 AM
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Default RE: Misfire detected

ok thx how about the wires ?
any recomendations?
 
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Old Nov 7, 2007 | 12:51 AM
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Go OE, go to the dealer and get a set. you'll be surprised they're not that pricy. I work as a mechanic, and i won't even touch any autozone/carquest/napa crap, you may be able to find a good performance set somewhere, but a stock set is the best bang for your buck. as for plugs, you can get them anywhere just be sure to get the champion copper style, under $1 a plug my cost.
 
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Old Nov 7, 2007 | 01:15 PM
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Default RE: Misfire detected

ORIGINAL: Freerider

Dont run platinum plugs in neons. They aren't recommended. I believe we have a write-up in the stickies about this:

Found in "The Official 2nd Gen FAQ and Performance Thread" thread.

ORIGINAL: 03neonRT

Q: What type of spark plugs should I use and what gap?
A: Use either stock Champion or NGK Iridium and gap them to 0.035”-0.040”. The Neon’s waste spark ignition system sees neither benefit nor gain from Platinum or “Split-fire” plugs. In some cases, misfire and premature spark plug deterioration can result when Platinum plugs are used on the 2.0L SOHC engine.
Your problem might be as simple as the plugs themselves. Stick with stock champs (imho). If that doesn't fix it, new wires are indeed in order.
Yeppers.
 
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