SES light with aFe stage II CAI

Lurchdubious · 12-06-2006, 11:20 PM

alright fellas, i'm gettin a little worried here. i installed my CAI about 5 weeks ago and the SES light is STILL on! should i be incredibly concerned about this? cuz it's gettin to that point. yes, i've reset the ECU and the light went off for about 30 minutes or so. i know this has happened on other titans with this cai. i figured the MAF sensor would adapt but the light is still on and i dunno what's up.
also, i think the engine is running a lil' rich cuz my mileage went from 14-15 to 12-13. please help!

AgTitan06 · 12-06-2006, 11:39 PM

Didn't I tell you it was gonna do that!

AgTitan06 · 12-06-2006, 11:42 PM

Quick SES Light Fix - 5 seconds

AgTitan06 · 12-06-2006, 11:50 PM

Here is what others said about my AFE causing my SES light to come on.
My SES light came back! :-(
HELP - 2* Timing Advance - SES LIGHT

Some other responses over at CT:
http://www.club titan.org/forums/showthread.php?t=21729
http://www.club titan.org/forums/showthread.php?t=21557
http://www.club titan.org/forums/showthread.php?t=21422

**gr8titan** · 12-07-2006, 05:31 AM

I didn't read all the links above but here's a quick one:
Check the direction of the MAF sensor on the aFe tube and compare the placement from the OE tube. Correct air flow direction is important for the MAF sensor.

x2thez · 12-07-2006, 10:22 AM

There is a TSB out there about aftermarket intakes ruining the MAF and other intake sensors due to over oiling and such. If you take it in to the dealer they are going to have you remove it. I heard this directly from a service manager.

AgTitan06 · 12-07-2006, 10:50 AM

Quote:

Originally Posted by gr8titan

I didn't read all the links above but here's a quick one:
Check the direction of the MAF sensor on the aFe tube and compare the placement from the OE tube. Correct air flow direction is important for the MAF sensor.

It's because it's an AFE intake...It causes the rich code. Trust me, I had this intake before and it did the same thing, along with most other people who have the AFE.

Quote:

Originally Posted by x2thez

There is a TSB out there about aftermarket intakes ruining the MAF and other intake sensors due to over oiling and such. If you take it in to the dealer they are going to have you remove it. I heard this directly from a service manager.

Oh, so you heard this from a service manager? Well, then, it MUST be true, since we all know that dealerships are a public service organization and work in our best interest..............

Here is a list of all the TSB's for the Titan. Please show me the TSB that states this:
http://www.nissanhelp.com/Bulletins/...Cab/2006/1.htm

Oh, and what other "intake sensors" are there besides the MAF sensor...Please, enlighten me.

EVO8 · 12-07-2006, 11:52 AM

Too much air causes problems for the MAF. I know alot of people love the CAI's but I personally don't recommend them. That is why I recommend the Injen intake system because it keeps your low end responsiveness and doesn't throw CELs. I know others will not agree with me but I've had very good experience with Injen intake systems in every car I've owned. The only way your going to fix this problem now is to get an engine management system or flash to comensate for the air and fuel if you want to keep your intake.

Forgot to include the Volant intake system too. It's a very good intake system I would recommend.

x2thez · 12-07-2006, 12:20 PM

Quote:

Originally Posted by AgTitan06

It's because it's an AFE intake...It causes the rich code. Trust me, I had this intake before and it did the same thing, along with most other people who have the AFE.

Oh, so you heard this from a service manager? Well, then, it MUST be true, since we all know that dealerships are a public service organization and work in our best interest..............

Here is a list of all the TSB's for the Titan. Please show me the TSB that states this:

Oh, and what other "intake sensors" are there besides the MAF sensor...Please, enlighten me.

WOAH. there... No reason to attack me due to the information I recieved. If you did some searches you would see that I am not the only person to speak of this. I did a quick search and found a few others, a couple of which said they had a problem and Nissan told them to pound salt when thier MAF was bad due to an overoiled aftermarket filter. Trust me I think they are great and I would get one, but a $500 MAF is not worth it to me. Now go ahead and tear me apart again.....

[SC]Titan · 12-07-2006, 12:27 PM

no problems with the AEM intake either...why I went with it cause of the dry filter

**gr8titan** · 12-07-2006, 01:09 PM

Quote:

Originally Posted by AgTitan06

It's because it's an AFE intake...It causes the rich code. Trust me, I had this intake before and it did the same thing, along with most other people who have the AFE.

A "Rich code" means that there is a surplus fuel more than the ideal the A/F ratio of 1:14.7
To re-state the same sentence a different way with the same meaning: There is a deficiency of Air in the ideal A/F ratio of 1:14.7
If the MAF sensor is inverted upon reinstallation, the ECU is reading "less" air coming into the engine to trigger the rich code.
Otherwise, IF the MAF sensor is properly installed (and everything else is A-OK), the only other logical explanation is that the aFE intake is NOT allowing the right volume of air through the filter to maintain the right A/F ratio during demanding acceleration.
Just my 0.02 trying to help with some explanation.

baseballfanz · 12-07-2006, 01:13 PM

This is not the first time I've heard of the AFE throwing a code.

AgTitan06 · 12-07-2006, 01:38 PM

Quote:

Originally Posted by x2thez

WOAH. there... No reason to attack me due to the information I recieved. If you did some searches you would see that I am not the only person to speak of this. I did a quick search and found a few others, a couple of which said they had a problem and Nissan told them to pound salt when thier MAF was bad due to an overoiled aftermarket filter. Trust me I think they are great and I would get one, but a $500 MAF is not worth it to me. Now go ahead and tear me apart again.....

relax bro..take a few deep breathes.

AgTitan06 · 12-07-2006, 01:42 PM

Quote:

Originally Posted by gr8titan

A "Rich code" means that there is a surplus fuel more than the ideal the A/F ratio of 1:14.7
To re-state the same sentence a different way with the same meaning: There is a deficiency of Air in the ideal A/F ratio of 1:14.7
If the MAF sensor is inverted upon reinstallation, the ECU is reading "less" air coming into the engine to trigger the rich code.
Otherwise, IF the MAF sensor is properly installed (and everything else is A-OK), the only other logical explanation is that the aFE intake is NOT allowing the right volume of air through the filter to maintain the right A/F ratio during demanding acceleration.
Just my 0.02 trying to help with some explanation.

Thanks for the detailed explanation! That's absolutely correct..I had the AFE intake and it always threw the code too...You're gonna have to ditch the AFE for a Volant like I did! lol

Lurchdubious · 12-07-2006, 03:50 PM

thanks for all the replies guys! amazingly enough, the light went off by itself just a couple hrs ago on my last drive. i'll have to giver 'er a couple tanks to see if my mileage improves, but as for right now my fingers are crossed.