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Old 08-30-2009, 01:01 PM
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Default Do Bosch platinum +2's spark plugs cause a misfire?

is it true that Bosch platinum +2's spark plugs can cause a misfire? i have a 1995 S 10 with a misfire under light accelartion between 1-2k RPM and not under heavy hard throttle. what are your experinces with these spark plugs? should i go back to the skock A/C Delco CR44ts plugs? thanks
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Old 08-30-2009, 01:04 PM
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Yup, ditch the Bosch plugs and get some AC Delcos back in there.

I have seen more ignition problems caused by using non OEM parts that it's usually not even worth doing any real troubleshooting until you get the aftermarket stuff out of there.
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Old 08-30-2009, 01:11 PM
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should i put the exact AC delco plugs that are called for on the emissions sticker? or AC Delco rapidfires? thanks
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Old 08-30-2009, 01:16 PM
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Either would be fine.

I am running the rapidfires, but only because the store only had 4 regular AC Delco plugs.
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Old 08-30-2009, 09:08 PM
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im sure you saw my post in the other thread but my bosch's (+2's) misfired as well. i put in the rapidfires, although the 41-932's were in before, and she ran perfect.
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Old 08-30-2009, 09:58 PM
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yep, bosch overall is a piece of ****.
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Old 09-06-2009, 01:41 AM
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what about the new spark plug wires that i put? should i replace those too? i put brand new Jegs brand 8.5mm Super conductor plug wires on it. should i go back the the A/C delco spark plug wires? please let me know
thanks so much
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Old 09-06-2009, 02:22 AM
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They are probably fine, no reason to replace them unless/until they go bad. The wires to avoid are the silly Nology/Jacobs style "booster" wires - once again trying to overengineer a simple part that already works just fine the way it is.
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Old 09-09-2009, 01:24 AM
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i use E 3 diamond fire plugs with great results.
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Old 09-09-2009, 01:20 PM
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I have always used delco plugs and wires. Well I am on my second set. i know they are a little more expensive and only come with a 1 year warranty but never the less overall quality is better.
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Old 09-09-2009, 01:20 PM
 
 
 
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2, ac, blaxer, blazer, bosch, chevy, delco, forum, long, misfire, platinum, platinum2, plug, plugs, rapidfire, s10, spark


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