Plug Replacement and 335 Code (2003)
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Posts: 110
Plug Replacement and 335 Code (2003)
I recently replaced my plugs at 58k miles. The electrodes looked like they were a little worn, but overall the old plugs were still in pretty good shape. I have not noticed a significant increase in performance and it is too early to determine if I am getting better gas mileage because traffic was terrible for the first tank after the change.
THE ISSUE
The first time I tried starting the car for the test run everything seemed fine. The second time I tried starting the car it would turn over, but not start. After waiting an hour I tried again, the car started however, the CEL light came on. I used the pedal procedure to pull code 335 (crank position sensor). After resetting the ECU the code is gone and I have driven 1.25 tanks without it coming back. Is there anything I may have done while changing the plugs that could have caused this? I assume it was a coincidence. I am still worried about it as I had the recall performed on this sensor while the car was very new. Is the crank position sensor covered under the power train warranty?
THE ISSUE
The first time I tried starting the car for the test run everything seemed fine. The second time I tried starting the car it would turn over, but not start. After waiting an hour I tried again, the car started however, the CEL light came on. I used the pedal procedure to pull code 335 (crank position sensor). After resetting the ECU the code is gone and I have driven 1.25 tanks without it coming back. Is there anything I may have done while changing the plugs that could have caused this? I assume it was a coincidence. I am still worried about it as I had the recall performed on this sensor while the car was very new. Is the crank position sensor covered under the power train warranty?
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No, nothing to do with the tune could have effected the cps. Coincidence as u stated. Jus so you know, changing the iridium plugs at 58k was a complete waste of time and money. They aren't due till 100k. If you are really hard on the car and use crappy gas, I guess changing them at 80k wouldn't be so bad. But still a waste in my opinion.
Good luck with it tho, I heard many peeps complain about cps issues after the warrenty. It makes me weary to get the job done. I'm still debating.
Good luck with it tho, I heard many peeps complain about cps issues after the warrenty. It makes me weary to get the job done. I'm still debating.
Guest
Posts: n/a
No, nothing to do with the tune could have effected the cps. Coincidence as u stated. Jus so you know, changing the iridium plugs at 58k was a complete waste of time and money. They aren't due till 100k. If you are really hard on the car and use crappy gas, I guess changing them at 80k wouldn't be so bad. But still a waste in my opinion.
Good luck with it tho, I heard many peeps complain about cps issues after the warrenty. It makes me weary to get the job done. I'm still debating.
Good luck with it tho, I heard many peeps complain about cps issues after the warrenty. It makes me weary to get the job done. I'm still debating.
Thread Starter
Supporting Maxima.org Member
Joined: Feb 2004
Posts: 110
Originally Posted by Derek626k
No, nothing to do with the tune could have effected the cps. Coincidence as u stated. Jus so you know, changing the iridium plugs at 58k was a complete waste of time and money. They aren't due till 100k. If you are really hard on the car and use crappy gas, I guess changing them at 80k wouldn't be so bad. But still a waste in my opinion.
Good luck with it tho, I heard many peeps complain about cps issues after the warrenty. It makes me weary to get the job done. I'm still debating.
Good luck with it tho, I heard many peeps complain about cps issues after the warrenty. It makes me weary to get the job done. I'm still debating.
Thanks for it feedback.
Just so you you know, the plugs are NKG Platinum. There are many others on this site who beleive in changing the plugs early, however in my situation you are correct by saying it was probably a waste of time($70) and money (1.5hrs).
Actually most iridium plugs are rated for about 30K, not 100K. Platinums are the only plugs rated for 100K. And even then you usually see a drop in performance before the 100K is up.
http://www.densoiridium.com/faq.php
Q. How long will Iridium Last?
A. Iridium use represents the most significant technological advance in automotive spark plug manufacturing, since platinum was introduced in the early eighties. As vehicle manufacturers produce increasingly complex and efficient automobiles, there is a greater need for long-life plugs that can tolerate leaner fuel mixtures and improved combustion processes. DENSO has responded to this need by developing its Iridium alloy, originally for OE applications. For example, many newer Lexus’ and Toyota models carry an ultra long-life Iridium plug variation (.7mm with platinum tipped ground) that is capable of up to 120,000 miles of service. DENSO Iridium Power plugs, with their .4mm center electrode, have been developed for performance applications. Because gradual wear will “round-off” firing points over time, the concentrated firing power and voltage requirement benefits will be reduced. For this reason, DENSO advises replacement after 30,000 miles.
A. Iridium use represents the most significant technological advance in automotive spark plug manufacturing, since platinum was introduced in the early eighties. As vehicle manufacturers produce increasingly complex and efficient automobiles, there is a greater need for long-life plugs that can tolerate leaner fuel mixtures and improved combustion processes. DENSO has responded to this need by developing its Iridium alloy, originally for OE applications. For example, many newer Lexus’ and Toyota models carry an ultra long-life Iridium plug variation (.7mm with platinum tipped ground) that is capable of up to 120,000 miles of service. DENSO Iridium Power plugs, with their .4mm center electrode, have been developed for performance applications. Because gradual wear will “round-off” firing points over time, the concentrated firing power and voltage requirement benefits will be reduced. For this reason, DENSO advises replacement after 30,000 miles.
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