P1402 & P0420
#1
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Join Date: Mar 2002
Location: Northen Ky, by Cincinnati
Posts: 213
P1402 & P0420
Max has 100,000 on it. About 3 months ago started getting a P1402. Reset, came back several times. Dealer said EGR was stuck open so I replaced it. Drive good for a month or so, P1402 comes back with a P0420. Reset, but only the P1402 comes back, has done so several times, P0420 did not come back again. Time frame is about 3 weeks.
Back to dealer, says the new EGR appears stuck. Dealer says could simply be a bad EGR or a pre-cat could be disintigrating fouling the new EGR. The car goes to dealer in a few days for assesment (engine was too hot to look into while there today). OK, so here is the question...if I need the cat should I just get a Nissan stock or go aftermarket?
I have seen several threads but many seem older, looking for people who have actually done the aftermarket. TIA. FYI, I am hoping to keep this car for awhile.
Back to dealer, says the new EGR appears stuck. Dealer says could simply be a bad EGR or a pre-cat could be disintigrating fouling the new EGR. The car goes to dealer in a few days for assesment (engine was too hot to look into while there today). OK, so here is the question...if I need the cat should I just get a Nissan stock or go aftermarket?
I have seen several threads but many seem older, looking for people who have actually done the aftermarket. TIA. FYI, I am hoping to keep this car for awhile.
#2
make sure they actually replaced the EGR... i just went through this and had to peices in my EGR..... if the cats are bad go after market.... $1100 at the dealer ship plus install vs 185 on ebay for headers and 300-500 install, its pretty straight foward...... of see if u can get cats off a junkier if u really want to have cats
#3
Supporting Maxima.org Member
Thread Starter
Join Date: Mar 2002
Location: Northen Ky, by Cincinnati
Posts: 213
make sure they actually replaced the EGR... i just went through this and had to peices in my EGR..... if the cats are bad go after market.... $1100 at the dealer ship plus install vs 185 on ebay for headers and 300-500 install, its pretty straight foward...... of see if u can get cats off a junkier if u really want to have cats
#5
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Join Date: Mar 2002
Location: Northen Ky, by Cincinnati
Posts: 213
#6
#7
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Thread Starter
Join Date: Mar 2002
Location: Northen Ky, by Cincinnati
Posts: 213
#9
EXACT SAME PROBLEM
yeah i had the p1402 then replaced a brand new egr valve, after a week or so the CEL comes on shootes out the p0420 so i brought it back and the guy told me it was because something having to do with the grade of gas i use. ive been driving for more thdan 8 monthes, but the CEL comes on and off with the p0420 usually comes on while i'm driving highway.
brought it to the dealer recently said it was my catyltic converter, and o2 sensors, I don't trust the nissan service guy, total douche and seemed he just wanted commision. either way i'm tryign to figure out how do i know if its the actual catyltic converter or just o2 replacments or what. and as of now the cel light is off but before i starrt replacing sneors and catytci converters imma try and clean it First... i'll reply after all that
brought it to the dealer recently said it was my catyltic converter, and o2 sensors, I don't trust the nissan service guy, total douche and seemed he just wanted commision. either way i'm tryign to figure out how do i know if its the actual catyltic converter or just o2 replacments or what. and as of now the cel light is off but before i starrt replacing sneors and catytci converters imma try and clean it First... i'll reply after all that
Last edited by htran2; 05-26-2012 at 12:42 PM.
#10
Supporting Maxima.org Member
Thread Starter
Join Date: Mar 2002
Location: Northen Ky, by Cincinnati
Posts: 213
yeah i had the p1402 then replaced a brand new egr valve, after a week or so the CEL comes on shootes out the p0420 so i brought it back and the guy told me it was because something having to do with the grade of gas i use. ive been driving for more thdan 8 monthes, but the CEL comes on and off with the p0420 usually comes on while i'm driving highway.
brought it to the dealer recently said it was my catyltic converter, and o2 sensors, I don't trust the nissan service guy, total douche and seemed he just wanted commision. either way i'm tryign to figure out how do i know if its the actual catyltic converter or just o2 replacments or what. and as of now the cel light is off but before i starrt replacing sneors and catytci converters imma try and clean it First... i'll reply after all that
brought it to the dealer recently said it was my catyltic converter, and o2 sensors, I don't trust the nissan service guy, total douche and seemed he just wanted commision. either way i'm tryign to figure out how do i know if its the actual catyltic converter or just o2 replacments or what. and as of now the cel light is off but before i starrt replacing sneors and catytci converters imma try and clean it First... i'll reply after all that
Good luck to you.
#11
make sure they actually replaced the EGR... i just went through this and had to peices in my EGR..... if the cats are bad go after market.... $1100 at the dealer ship plus install vs 185 on ebay for headers and 300-500 install, its pretty straight foward...... of see if u can get cats off a junkier if u really want to have cats
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