P0305 Misfire in cylinder #5

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Jan 20, 2016 | 06:22 AM

#21

jamieb

Thread Starter

Winching

Joined: May 2012

Posts: 676

Likes: 37

From: Wylie, TX

In my owner's manual, the Champion 7070 is actually listed by name for the spark plug designed to be used. You may see RC11PYPB4. That is the same as the 7070.
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Quote:

Originally Posted by evoblade

I'm wondering about these 7070s. I looked it up on Amazon, and it says it is double platinum spark plug, but that it does not fit the Disco. I looked up the double platinum on Champions website and it says Champion 7332. What am I missing? Heat range?

Jan 20, 2016 | 08:40 PM

#22

number9

Pro Wrench

Joined: Nov 2015

Posts: 1,935

Likes: 189

From: Coastal Georgia

Wasted Spark & Plug Specs

Quote:

Originally Posted by evoblade

7332 is a notch cooler.

Information from Champion site, spec for 02 RR is interesting:

7332-Additional Fit Criteria:
Plug Type RN10PYP4; SINGLE SPARK; Gap .040

7070-Additional Fit Criteria:
Plug Type RC11PYPB4; DOUBLE SPARK; OE Plug; Gap .040

D2 WM states:

Quote:

The ignition system operates on the wasted spark principle.

Also referred to as a double spark system.

......

Last edited by number9; Jan 20, 2016 at 08:47 PM.