spark plug query...

rumpletom said:

I'm currently dealing with a couple issues on my 09 touring, pretty sure main problem is a hinky TPS with all the symptoms and am waiting on new part to materializer. In the meantime a good tune is in order and am starting with new plugs...... Our closest parts store in town had 3 NGK DPR7EA-9's and 3 NGK DPR8EA-9's and since I'm slightly impatient got to wondering the ramifications of installing 1ea. per cylinder. Genius or bad idea?

Click to expand...

rumpletom said:

I'm currently dealing with a couple issues on my 09 touring, pretty sure main problem is a hinky TPS with all the symptoms and am waiting on new part to materializer. In the meantime a good tune is in order and am starting with new plugs...... Our closest parts store in town had 3 NGK DPR7EA-9's and 3 NGK DPR8EA-9's and since I'm slightly impatient got to wondering the ramifications of installing 1ea. per cylinder. Genius or bad idea?

Click to expand...

rumpletom said:

I'm currently dealing with a couple issues on my 09 touring, pretty sure main problem is a hinky TPS with all the symptoms and am waiting on new part to materializer. In the meantime a good tune is in order and am starting with new plugs...... Our closest parts store in town had 3 NGK DPR7EA-9's and 3 NGK DPR8EA-9's and since I'm slightly impatient got to wondering the ramifications of installing 1ea. per cylinder. Genius or bad idea?

Click to expand...

jacksonbiker said:

Casting different spark plugs with slightly different heat ranges in one assembly is not advisable because it will cause inconsistency in the heat range. If done improperly, it could bring about a condition where parts of the fuel are burned while others are not, which would impact the performance of the engine. If your currently waiting for a new TPS than it be best to wait for matching plugs or get them on the internet if available. Resistance variation is minimized when spark plugs are made consistent to reduce any unwanted disturbance. Hope this tune-up helps you a lot!

There must be some degree of order in the heat range of the spark plugs in order to deliver the best operation of the car’s engine.

Click to expand...

rumpletom said:

**** Jackson, now I gotta pull 3 plugs out lol, impatience........ anyway since both 7 and 8 are recommended which shall I choose? I did install them in order, 7 in the forward part of each cylinder so they are consistant in that regard, haven't heard much good about the Iridium plugs if you or anyone else has had good experience with them let me know. Thanks again for your thoughtful reply

Click to expand...

Mongler07 said:

There are 6 plugs. Not 3. Btw.
As for your what plugs to use. The one ending in 8 is better and correct. But it came with the 7s from the factory on the early years. Honestly it does not matter. Service intervals is way too short to care.

Click to expand...