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Discussion Starter #1 (Edited)
Hi everyone. I'm just now getting around to doing this. My little brother was driving the truck one day and he said that the engine stalled and won't crank afterwards. I hooked up the obd2 scanner to the truck and got the code p0430. I searched the forums and it was related to 02 sensor and Cat error code. I'm not sure if i'm doing it right but i'm going to embed a video of how i did it.

I've also read that there is a screen somewhere that somehow can be sucked into the engine that would cause for me to replace the motor. How can i diagnose that problem to eliminate the thought of having to replace the motor?

When i try to crank the motor, it'll crank fine with no check engine light of any source. I then shut down the engine and test it again. It won't crank. The only way i can crank it again is to let it sit for a while. maybe a few days.

 

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Have you switched out the infamous IPDM relay that tends go bad on our Titans? There is a recall to replace the faulty relay from Nissan. It can sometimes cause difficulty starting, cranking over, and even put the computer into "limp" mode. You can switch it out with the fog light relay for the short term to see if that solves the issue for you. If it does, get it to a Nissan Dealership and have the recalled relay switched out.

If it truly is a O2 sensor issue, try to find out if it is the left bank or right bank and if it the O2 sensor before or after the catalytic converter. You can probably call up Advance Auto Parts or Autozone and they can probably tell you which bank it is and if it is the fore or aft sensor when they input the p code into their computer. They will also be able to give you a price on a new sensor. Just a couple of suggestions to give you a couple of options to look into, hope this helps a little. *****Also, if it is a bad Cat and you have less than 80K on the odo, it is covered by Nissan by federal law under the 8yr/80K emissions warranty.*****
 

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Discussion Starter #3
Have you switched out the infamous IPDM relay that tends go bad on our Titans? There is a recall to replace the faulty relay from Nissan. It can sometimes cause difficulty starting, cranking over, and even put the computer into "limp" mode. You can switch it out with the fog light relay for the short term to see if that solves the issue for you. If it does, get it to a Nissan Dealership and have the recalled relay switched out.

If it truly is a O2 sensor issue, try to find out if it is the left bank or right bank and if it the O2 sensor before or after the catalytic converter. You can probably call up Advance Auto Parts or Autozone and they can probably tell you which bank it is and if it is the fore or aft sensor when they input the p code into their computer. They will also be able to give you a price on a new sensor. Just a couple of suggestions to give you a couple of options to look into, hope this helps a little. *****Also, if it is a bad Cat and you have less than 80K on the odo, it is covered by Nissan by federal law under the 8yr/80K emissions warranty.*****
Thanks for your quick reply bro. Let me dig into the relay thing and see if it helps solve the problem.

As for the warranty, i'm over the 80k but under 8 years so i don't think they'll warranty it. Did you get a chance to look at the video? i just want to double check to make sure i'm doing it right to get the right code. If it does involve the 02 sensors or cal. converter, i'll probably bring it to my uncle shop anyways and let him fix it. It'll be cheaper and a better service since its family owned.
 

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there's a recall on the relay
 

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Thanks for your quick reply bro. Let me dig into the relay thing and see if it helps solve the problem.

As for the warranty, i'm over the 80k but under 8 years so i don't think they'll warranty it. Did you get a chance to look at the video? i just want to double check to make sure i'm doing it right to get the right code. If it does involve the 02 sensors or cal. converter, i'll probably bring it to my uncle shop anyways and let him fix it. It'll be cheaper and a better service since its family owned.


Yea, I looked at the video, looks like you did everything right; Keep us updated and let us know what the end resolution was to your problem. Always good to know what the primary failure is on issues such as this.
 

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Discussion Starter #6
What is a door light activator? i'm trying to do the ipdm test but i can't find the light activator in my truck. Its a 2006 nissan titan
 

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Discussion Starter #7
UPDATE: I tried the IPDM and it was in deed the relay to the ecm is shot. I switched it out with the fog light relay and the engine is now fine. What i'll do is order a new IPDM board from brian over there in new jersey and have the board replaced! Thanks for recommending me to look up the IPDM recall. I don't think the dealer will replace it since my truck is over the 3 year/30k miles.
 

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With it being a factory recall, they should do it for free.
 
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I have over 140,xxx and the dealer changed it out.. It's a free recall along with the gas gauge.

L
 
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Discussion Starter #10
With it being a factory recall, they should do it for free.
I have over 140,xxx and the dealer changed it out.. It's a free recall along with the gas gauge.

L
Thanks for that info guys. I will call them tomorrow when they open and schedule it. I think i brought it in for the gas gauge recall. I would have done it for the relay as well but i never received a post card for the recall like i did for the gas gauge.
 

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UPDATE: I called the dealership where i originally bought my truck. They will replace it free of charge. I'll update again when i get the truck back. Thanks guys for all of your help. Also, with the p0430 code that i got, i think its pending, do you think it'll be a good idea to go ahead and replace it since it will fail soon?
 

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UPDATE: I called the dealership where i originally bought my truck. They will replace it free of charge. I'll update again when i get the truck back. Thanks guys for all of your help. Also, with the p0430 code that i got, i think its pending, do you think it'll be a good idea to go ahead and replace it since it will fail soon?
I would wait until after I got the truck back after the ipdm recall is fixed and see if it is still throwing the code. It might be a code that was brought on by the bad ECM in the ipdm. Having the ECM replaced by the dealer might fix your code without any further issues.
 

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i received the p430 code after my ipdm went out. what happens is when it goes, the engine dumps raw gas down the exhaust, which breaks down the guts of the cat. this is what can be sucked back up into the engine and destroy it.

the cats are covered under the 80k warranty. I would have them check it when they are changing the IPDM
 

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P0430 is a cat efficiency code set when the ecm detects poor oxygen storage in a particular cat as read by the rear o2 sensor. If the ecm relay in the ipdm is malfunctioning, there can be excessive fuel dumped onto the cat honeycomb and cause deterioration. This doesn't necessarily mean that the cat has come apart, just isn't cleaning the exhaust gases enough. 430 refers to bank 2 cat, which is the passenger side cat/manifold assembly. Replacing the relay will not fix the check engine light or repair the cat malfunction. I would have a dealership, or your friend, replace the cat and clear the code. You should be fine after that.
 

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If I haven't had the ECM recall done at dealer yet would this have an adverse effect on MPGs? I know its a little off topic but after reading this post I called nissan and my vehicle falls under that recall. Thanks, at least for mentioning the recall that I didn't know about!
 

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If I haven't had the ECM recall done at dealer yet would this have an adverse effect on MPGs? I know its a little off topic but after reading this post I called nissan and my vehicle falls under that recall. Thanks, at least for mentioning the recall that I didn't know about!
It shouldn't have an affect on MPGs as the recall just replaces a relay in the ipdm that goes bad causing engine to stall and/or have a no start condition.
 

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Discussion Starter #17
Now that nissan has replace the ecm (ipdm), i'm still getting the code p430. I debating if i should replace the cats/exaust manifold with an aftermarket headers with a high flow cat. I don't smell any gas so i wonder if the cats are still doing its job. I just don't want the engine to suck in the debris and bye bye engine.
 

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Now that nissan has replace the ecm (ipdm), i'm still getting the code p430. I debating if i should replace the cats/exaust manifold with an aftermarket headers with a high flow cat. I don't smell any gas so i wonder if the cats are still doing its job. I just don't want the engine to suck in the debris and bye bye engine.
If you can afford it, new headers is always a good thing. I'm sure you would see an improvement in performance.
 
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