Disapointment with the NGK Iridium plug
#1
Disapointment with the NGK Iridium plug
My TL-P 02 with 90k miles got a new transmy last month and after fine tuning
i.e. clean TB , seafoam , adjust TB cable , oil change ...my car run very smooth and perform almost like a new car ....then figure that the only thing to change now is plugs so did change them last week but I was disapointed with the NGK Iridium plugs ( ZFR5FIX-11)
The car performs poorly , less response and power , MPG get worse .... :whyme can not figure it out why ..![Annoyed](https://acurazine.com/forums/images/smilies/annoyed.gif)
So today decide to go back to the old original plugs and the performance is back ..while changing the plugs I notice the new Iridium were running a bit rich .... Did you guys got the same feeling after changing to Iridium plugs ...
I will keep my old plugs for now , maybe another 10k miles or so ...but for sure will not go back with the Iridium .
Double Platinum (original ) = 16$ and Iridium = 8 $ ....I still think we got what we pay for .
i.e. clean TB , seafoam , adjust TB cable , oil change ...my car run very smooth and perform almost like a new car ....then figure that the only thing to change now is plugs so did change them last week but I was disapointed with the NGK Iridium plugs ( ZFR5FIX-11)
The car performs poorly , less response and power , MPG get worse .... :whyme can not figure it out why ..
![Annoyed](https://acurazine.com/forums/images/smilies/annoyed.gif)
So today decide to go back to the old original plugs and the performance is back ..while changing the plugs I notice the new Iridium were running a bit rich .... Did you guys got the same feeling after changing to Iridium plugs ...
I will keep my old plugs for now , maybe another 10k miles or so ...but for sure will not go back with the Iridium .
Double Platinum (original ) = 16$ and Iridium = 8 $ ....I still think we got what we pay for .
![2 Cents](https://acurazine.com/forums/images/smilies/2cents.gif)
#3
S E L L
My TL-P 02 with 90k miles got a new transmy last month and after fine tuning
i.e. clean TB , seafoam , adjust TB cable , oil change ...my car run very smooth and perform almost like a new car ....then figure that the only thing to change now is plugs so did change them last week but I was disapointed with the NGK Iridium plugs ( ZFR5FIX-11)
The car performs poorly , less response and power , MPG get worse .... :whyme can not figure it out why ..![Annoyed](https://acurazine.com/forums/images/smilies/annoyed.gif)
So today decide to go back to the old original plugs and the performance is back ..while changing the plugs I notice the new Iridium were running a bit rich .... Did you guys got the same feeling after changing to Iridium plugs ...
I will keep my old plugs for now , maybe another 10k miles or so ...but for sure will not go back with the Iridium .
Double Platinum (original ) = 16$ and Iridium = 8 $ ....I still think we got what we pay for .![2 Cents](https://acurazine.com/forums/images/smilies/2cents.gif)
i.e. clean TB , seafoam , adjust TB cable , oil change ...my car run very smooth and perform almost like a new car ....then figure that the only thing to change now is plugs so did change them last week but I was disapointed with the NGK Iridium plugs ( ZFR5FIX-11)
The car performs poorly , less response and power , MPG get worse .... :whyme can not figure it out why ..
![Annoyed](https://acurazine.com/forums/images/smilies/annoyed.gif)
So today decide to go back to the old original plugs and the performance is back ..while changing the plugs I notice the new Iridium were running a bit rich .... Did you guys got the same feeling after changing to Iridium plugs ...
I will keep my old plugs for now , maybe another 10k miles or so ...but for sure will not go back with the Iridium .
Double Platinum (original ) = 16$ and Iridium = 8 $ ....I still think we got what we pay for .
![2 Cents](https://acurazine.com/forums/images/smilies/2cents.gif)
![what](https://acurazine.com/forums/images/smilies/what.gif)
![Dunno](https://acurazine.com/forums/images/smilies/dunno.gif)
#6
Hold on, wait a sec, you have an option of pulling out a fuse???, which will reset your ECU and improve your MPG????
Come to think of it, i did have a similar problem like you stated in your first post AcuraB!!!
Come to think of it, i did have a similar problem like you stated in your first post AcuraB!!!
#7
Something is wrong with the car- or your process- no way its running rich on the new plugs unless there is a problem!!
They are the called for replacement- platinum is stock -gen3 comes with iridium so its ok to use in gen2
NGK Iridium IX should cost 7 bucks each at local parts store- $50 for the set of 6 and a dollar tube of thread anti-sieze
coils are easily and frequently damaged thru mishandling during plug change
then they fail a month later--code will tell
Did you seafoam first-following the diy and putting it in the main vac port at the TB housing attchment to manifold,,do the full hot foot drive after to get rid of the loosened crud- then a week later install the plugs?
First timers should repeat foam in gas tank and manifold vac port in a month or 2000 miles to complete the cleaning
Get the codes read- may have a coil problem
Inspect each plug- any damage to the end wire of one?
Were they all soaked wet black rich?
Were all the connectors on tight?
check your work before you blame the part
They are the called for replacement- platinum is stock -gen3 comes with iridium so its ok to use in gen2
NGK Iridium IX should cost 7 bucks each at local parts store- $50 for the set of 6 and a dollar tube of thread anti-sieze
coils are easily and frequently damaged thru mishandling during plug change
then they fail a month later--code will tell
Did you seafoam first-following the diy and putting it in the main vac port at the TB housing attchment to manifold,,do the full hot foot drive after to get rid of the loosened crud- then a week later install the plugs?
First timers should repeat foam in gas tank and manifold vac port in a month or 2000 miles to complete the cleaning
Get the codes read- may have a coil problem
Inspect each plug- any damage to the end wire of one?
Were they all soaked wet black rich?
Were all the connectors on tight?
check your work before you blame the part
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#8
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Don't know about officiating the MPG improvement claim, but if your old plugs were dirty as heck and your PCM compensated by throwing more fuel at it, once you put in new plugs, it seems to me like now it's wasted fuel. I guess over time, the PCM adjusts based on long-term O2 readings anyway, but if you just reset, it might be like starting "fresh". Speculation.
#9
the 2 ways to reset the ecu- engine computer, are
disconnect the neg battery cable
which requires input of radio security code afterwards
OR
gen2 fuse #13 right passenger side, says clock and is the secret backup power to the ecu
pull it and you force a master reset and relearn
If you do certain major mods to the car- like UR pulley- it must be done
after a cleaning and full tune it wont hurt it to learn how to run on clean pistons and valves with fresh parts
90k miles it may need the egr ports cleaned on the intake manifold
Not in the book maitenance, but fsttyms1 can verify its need every 75k miles!!!
disconnect the neg battery cable
which requires input of radio security code afterwards
OR
gen2 fuse #13 right passenger side, says clock and is the secret backup power to the ecu
pull it and you force a master reset and relearn
If you do certain major mods to the car- like UR pulley- it must be done
after a cleaning and full tune it wont hurt it to learn how to run on clean pistons and valves with fresh parts
90k miles it may need the egr ports cleaned on the intake manifold
Not in the book maitenance, but fsttyms1 can verify its need every 75k miles!!!
#10
OP- you may be noticing the new trans is programmed differently
Do its break-in mileage gently and see how the car mpg improves as the parts all blend together in a smooth transitioning unit
Do its break-in mileage gently and see how the car mpg improves as the parts all blend together in a smooth transitioning unit
#11
#13
Yes I did reset the ECU twice by pulling the fuse #13 right passenger side ... It run smooth for the first day but the next day the performance gone . Each time it last only 1 day ........
Were plugs all soaked wet black rich? ... Yes they are a bit soaked wet black rich and smell fuel when I remove them .
I did scan and no codes at all ... so not a coils problem ....
How do you explain the performance is back after I went back to my old Double Platinum
By the way according to NGK.com our original plugs are Double Platinum ...........
Were plugs all soaked wet black rich? ... Yes they are a bit soaked wet black rich and smell fuel when I remove them .
I did scan and no codes at all ... so not a coils problem ....
How do you explain the performance is back after I went back to my old Double Platinum
By the way according to NGK.com our original plugs are Double Platinum ...........
#14
For now I'm happy with the performance that my old plugs give me .
![Thumbs Up](https://acurazine.com/forums/images/smilies/thumbsup.gif)
#16
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#18
power contol module
I would check the TB cable adjustment as being too tight
Things were ok till you did that! if to tight it wont seal right and let the plugs get soaked
Check your work again!!
and vac lines are connected!
I would check the TB cable adjustment as being too tight
Things were ok till you did that! if to tight it wont seal right and let the plugs get soaked
Check your work again!!
and vac lines are connected!
#21
S E L L
#23
the book says plugs with the 105 service, but many find that anytime over 60k miles and its ready for plugs
100 percent performance is the goal
100 percent performance is the goal
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