EGR VAlve

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sandydennis11
Posts: 117
Joined: Sat Apr 23, 2011 12:38 pm
Car: 1996 Infiniti Q45 176k miles
purchased new in 1995
Location: San Francisco ca

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My 1996 Q45 now needs a EGR Valve according to the code that popped up. California emission test will fail if not changed along with an EVAP canister purge control solenoid.

Searching all sites and found one that wants $700. plus for one. Trying the Japan site also.

Anyone else with a California Q with an issue like this ever?


98_Q45
Posts: 599
Joined: Mon Oct 16, 2017 12:12 am

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I also have Cal setup. It can get tricky but you may want to first make sure there isn’t charcoal built up in the lines. If so, you’ll need to blow that out from the service hose leading from the engine to the canister. On an old system, the charcoal canister may be ruptured. It’s pretty easy to tell by disconnecting the vent valve somewhere on the engine and seeing if there’s any evidence.

I’ve been able to get by on just replacing the charcoal canister and vent valve. You may can get by just replacing the canister and then seafoam spraying and compressed air the other parts. That’s basically what I did for my vent valve solenoid motor. I changed the EGR valve but it didn’t really seem broken to begin with, but since I was chasing everything else down looking for a fix to a culprit I was dealing with, it was part of it.

Every so often I’ll still get an EGR code, idk why but it should stay off long enough to get thru emissions. The state I live in currently doesn’t do emissions anyway, but for awhile I was bent on fixing every code until I got to the oxygen sensors and knock sensors, where the rear heating wiring seems f*** and the knock sensors are too difficult to reach and don’t seem to be causing any major issues.

Damn California and Arizona emissions are part of why there’s hardly any Qs around. It’s difficult to get a check engine light off and stay off after so many miles and owners. I had one car where the CEL bulb was actually removed from behind the panel by the previous owner. I ended up putting it back because I need to make sure it’s not blinking at some point, that’s when it’s really a problem lol.

sandydennis11
Posts: 117
Joined: Sat Apr 23, 2011 12:38 pm
Car: 1996 Infiniti Q45 176k miles
purchased new in 1995
Location: San Francisco ca

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Thanks for the info.. Ill give your ideas to my tech guy. He loves the car and my money

98_Q45
Posts: 599
Joined: Mon Oct 16, 2017 12:12 am

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sandydennis11 wrote:
Wed May 07, 2025 2:56 pm
Thanks for the info.. Ill give your ideas to my tech guy. He loves the car and my money
Yeah, it’s easier than it sounds. I had no idea my lines were clogged with charcoal, but once I cleaned it up and fixed the canister and center valve, it was all good. Tbh I didn’t really notice much difference in how it drove though. But I guess its not good for the environment and gas fumes to leave it as is.

sandydennis11
Posts: 117
Joined: Sat Apr 23, 2011 12:38 pm
Car: 1996 Infiniti Q45 176k miles
purchased new in 1995
Location: San Francisco ca

Post

hi. Took the Q 45 in and had tech clean the canister and whatever. Check Engine light not on, Tech said get the Q an Emission test asap but CA states no earlier than 75 days before needed testing.
I ordered all the parts from the Japan company and hope they are available because in maybe 2 years this car will not pass the CA test.

Thanks for your input

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Q451990
Moderator
Posts: 11030
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
Contact:

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sandydennis11 wrote:
Wed May 07, 2025 2:56 pm
and my money
:rotfl :rotfl

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BCC93QT
Posts: 1385
Joined: Tue Feb 12, 2008 3:20 am
Car: 1990 Infiniti Q45
1995 Infiniti Q45
Location: Western MA

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What parts did you order?

sandydennis11
Posts: 117
Joined: Sat Apr 23, 2011 12:38 pm
Car: 1996 Infiniti Q45 176k miles
purchased new in 1995
Location: San Francisco ca

Post

All OEM. Valve Asst Ear 14710-60U00
NS 1474102E00
NS 1495658C1A

About $600.00 including shipping. But the Check Engine light is off...maybe this was overkill. ,,,, Will see when Smog Check from CA DMV this fall.

sandydennis11
Posts: 117
Joined: Sat Apr 23, 2011 12:38 pm
Car: 1996 Infiniti Q45 176k miles
purchased new in 1995
Location: San Francisco ca

Post

Looks like my repair guy has changed out all parts needed that I bought from Japan for CA emission test.
Check Engine light off. He will take it over the weekend and give it a prelim emission test ,
Will find out this Monday.
CA emission test needs a positive result by August 8th

sandydennis11
Posts: 117
Joined: Sat Apr 23, 2011 12:38 pm
Car: 1996 Infiniti Q45 176k miles
purchased new in 1995
Location: San Francisco ca

Post

Q45 passed the CA emission test. Great tech and a great price.

User avatar
Q451990
Moderator
Posts: 11030
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
Contact:

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That's great news!

sandydennis11
Posts: 117
Joined: Sat Apr 23, 2011 12:38 pm
Car: 1996 Infiniti Q45 176k miles
purchased new in 1995
Location: San Francisco ca

Post

Its going for 2 more years with new sticker plates. The girl is going to outlast me.

it cost me 35000.00 in 1995. and 32000.00 in repairs/upkeep. So not too bad


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