need help i got this code 0302 when i checked the ecu 99 max.\
i have reset it couple of times and service engine keeps popping up every 2 days can someone help trouble shoot this .. dont know what to look for..
thnxs

 

I was running this code for a month..my problem didn't go away until I replaced EGR solenoid valve..Its been about 3 months now.. So far so good..Replace this and it won't come back.

 

I have the same 0302 code popping up. Was the EGR valve solenoid easy to replace? How much is a new one and where would it happen to be located? I do not have a manual. Thanks in advance.

 

10-04-2004, 12:53 PM #3 Adam Cramer
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Join Date: Sep 2003
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EGR Valve Solenoid
I have the same 0302 code popping up. Was the EGR valve solenoid easy to replace? How much is a new one and where would it happen to be located? I do not have a manual. Thanks in advance




Any luck in fixing this?? I have had this problem for a while and was wondering how hard it would be to fix myself??

 

I do not have this car anymore, but I did fix the problem and it ended up being an oxygen sensor and I think I replaced the middle one. I hope this helps.

 

Clean the EGR tube. Takes a couple of hours to do, and it's good maintainence for your car. The tube is probably clogged because people don't really take apart their intake manifolds.

 

i didnt have this code until i put on a y pipe. is this related or just a coincidence? could it be a bad o2 sensor?

 

has nothing to do with the Y pipe or O2 sensor. clean the small EGP pipe.

 

werd clean the egr tube.. its gonna be clogged like crazy... trust me.... go to nissan and get the gaskets as well

 

Excluding '99's, it is SOOOO simple to verify first whether or not it is the guide tube clogged up........

And you wouldn't be the first .org member to go through the whole ordeal of cleaning the tube just to be like "wtf, still there guys"


W/engine running (and cold so you don't burn yourself) reach way down and manually lift up on the egr valve. It's just like finding the G-spot! If the engine stalls or stumbles bad it is NOT the guide tube. Really takes 10 seconds if you know exactly where to reach.

 

ok, I'll bite.
where do you reach? can we get a photo?
I'm probably gonna tear my girlfriends engine apart to clean the damn EGR this weekend if not.

 

or............you can pull off the air box and simply look into it. there will probably be a bunch of buildup. when you look in, there are 2 openings there. one is the IACV, other is the EGR pipe. while you are at it, its probably a great to to clean the throttle body, IACV and EGR pipe since pulling those off makes getting to the EGR pipe easier. Oh, and if you do clean it, actually take the sensor out of the tube and thoroughly clean it (you'll see what I mean)

 

the EGR is below the throttlebody...
what would looking into the airbox show you?

 

 

it isnt the EGR that is throwing the code. It is the sensor located on the small EGR tube that runs from the EGR to the plenum. the top is usually what gets clogged. that code isnt the solenoid valve. do a search. if you cant find anything pm me your email addy and I can email you a writeup.

 

ok, i did that last week and it did stumble a bit, but it didnt stall completely. So i take it it isn't the tube...what would you say the problem is now? the solenoid that everyone talks about?

 

On your 99 Max it could be the egr temp sensor. It needs to be a certain resistance value or it will throw a 0302 code. You can just disconnect it and check the value when the engine is cold. I can't remember the exact resistance, but I got one from the junkyard to swap. The new sensors are $100.