NLA emission parts , CA car
03-22-18, 07:33 PM
#1
NLA emission parts , CA car
So what happens if a main component is NLA from mazda and no aftermarket part is available for it ...EGR
my egr is faulty and the CEL is on due to code 16? What ever the number is its the egr last i checked. Cant pass smog cause broken egr.. cant replace cause mazda is NLA .. my FD is a 94 ca car
what do ?
my egr is faulty and the CEL is on due to code 16? What ever the number is its the egr last i checked. Cant pass smog cause broken egr.. cant replace cause mazda is NLA .. my FD is a 94 ca car
what do ?
03-22-18, 07:51 PM
#2
You don't need a functioning egr to pass CA smog. If you check see the egr gasket picture the hole for it is TINY.
You can find a non-CA ecu and install it on your car and it won't get the CEL code for the egr.
Or you can do the egr relay bypass to stop the check engine light from coming on.
fix here:
https://www.rx7club.com/3rd-generati...ix-egr-345468/
You can find a non-CA ecu and install it on your car and it won't get the CEL code for the egr.
Or you can do the egr relay bypass to stop the check engine light from coming on.
fix here:
https://www.rx7club.com/3rd-generati...ix-egr-345468/
03-23-18, 02:15 AM
#4
For your specific situation, maybe there's someone nearby who has taken off their EGR valve that you could replace your broken one with?
I dunno if that works... I may have one hanging around from my "For Off-Road Use Only" car if you want me to look.
Or, I RockAuto has an aftermarket EGR valve:
https://www.rockauto.com/en/catalog/...egr+valve,4968
I don't know if it works with California ECU and will allow your CEL to go off, though. And it's a lot!
But, yes, I see the problem that you're presenting. But knowing the California DMV and their usual reaction when presented with logic, you're not gonna get anywhere with them. They will just stare at you blankly.
I dunno if that works... I may have one hanging around from my "For Off-Road Use Only" car if you want me to look.
Or, I RockAuto has an aftermarket EGR valve:
https://www.rockauto.com/en/catalog/...egr+valve,4968
I don't know if it works with California ECU and will allow your CEL to go off, though. And it's a lot!
But, yes, I see the problem that you're presenting. But knowing the California DMV and their usual reaction when presented with logic, you're not gonna get anywhere with them. They will just stare at you blankly.
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kensin (03-23-18)
03-23-18, 03:21 AM
#5
For your specific situation, maybe there's someone nearby who has taken off their EGR valve that you could replace your broken one with?
I dunno if that works... I may have one hanging around from my "For Off-Road Use Only" car if you want me to look.
Or, I RockAuto has an aftermarket EGR valve:
https://www.rockauto.com/en/catalog/...egr+valve,4968
I don't know if it works with California ECU and will allow your CEL to go off, though. And it's a lot!
But, yes, I see the problem that you're presenting. But knowing the California DMV and their usual reaction when presented with logic, you're not gonna get anywhere with them. They will just stare at you blankly.
I dunno if that works... I may have one hanging around from my "For Off-Road Use Only" car if you want me to look.
Or, I RockAuto has an aftermarket EGR valve:
https://www.rockauto.com/en/catalog/...egr+valve,4968
I don't know if it works with California ECU and will allow your CEL to go off, though. And it's a lot!
But, yes, I see the problem that you're presenting. But knowing the California DMV and their usual reaction when presented with logic, you're not gonna get anywhere with them. They will just stare at you blankly.
if not my last resort was to buy a 94 non ca ecu to run it.
ill check it out once i remove it, ill keep you in mind good sir thanks
03-23-18, 09:26 AM
#7
RX-7 Bad Ass
iTrader: (55)
You should be able to find a good used one or clean yours to get it working. I probably have one floating around the garage somewhere.
93 cars either had the "plain" EGR or were California-spec and had the fancy EGR.
All 94 cars had the fancy EGR.
95 I THINK they got rid of EGR.
So, your options -
- Try and clean your EGR to get it working. May want to get a new gasket.
- Get a good used EGR with the sensor.
- Get another ECU, either a 93 non-Cali ECU or a PowerFC or something. You can rig up the PowerFC to light the Check Engine light on key on.
- Move
.
Dale
93 cars either had the "plain" EGR or were California-spec and had the fancy EGR.
All 94 cars had the fancy EGR.
95 I THINK they got rid of EGR.
So, your options -
- Try and clean your EGR to get it working. May want to get a new gasket.
- Get a good used EGR with the sensor.
- Get another ECU, either a 93 non-Cali ECU or a PowerFC or something. You can rig up the PowerFC to light the Check Engine light on key on.
- Move
.Dale
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03-23-18, 10:55 AM
#8
Rotary Enthusiast
iTrader: (32)
You might want to contact the Bureau of Automotive repair and ask if there is an exemption, however even if there is the process will be tortuous in a big way.
This kind of issue will become a bigger problem for us CA owners as the catalysts wear out, there is no OEM replacement for these either and also no CARB approved aftermarket cat AFAIK (not that any tiny aftermarket cat is likely to be able to pass the ASM loaded dyno emissions test used in the enhanced smog check regions).
The simplest path is to get the check engine light out, but EGR is used for NOx control and the FD makes lots of NOx so there is some risk that you might fail for NOx depending on the age of your cat.
I think the safest option is to locate a federal spec 1995MY ECM, this MY had no EGR as standard for federal cars and the calibration was designed for it. Obviously Mazda did some calibration change to lower NOx and get the car certified with no EGR for 49-state certification. This setup will pass CA enhanced smog check, it is what I have on my 1995 at smog check time (along with a low mileage catalyst) and it passes (with middle of the range NOx numbers, and about zero CO and HC). I also have a second super low mileage main cat sitting on a shelf for when the time comes. Maybe that is overkill.
This kind of issue will become a bigger problem for us CA owners as the catalysts wear out, there is no OEM replacement for these either and also no CARB approved aftermarket cat AFAIK (not that any tiny aftermarket cat is likely to be able to pass the ASM loaded dyno emissions test used in the enhanced smog check regions).
The simplest path is to get the check engine light out, but EGR is used for NOx control and the FD makes lots of NOx so there is some risk that you might fail for NOx depending on the age of your cat.
I think the safest option is to locate a federal spec 1995MY ECM, this MY had no EGR as standard for federal cars and the calibration was designed for it. Obviously Mazda did some calibration change to lower NOx and get the car certified with no EGR for 49-state certification. This setup will pass CA enhanced smog check, it is what I have on my 1995 at smog check time (along with a low mileage catalyst) and it passes (with middle of the range NOx numbers, and about zero CO and HC). I also have a second super low mileage main cat sitting on a shelf for when the time comes. Maybe that is overkill.
03-23-18, 12:31 PM
#9
As arghx somewhat mentioned the only difference between a 49 state and 50 state legal EGR is the microswitch that tells the ECU that the EGR has been actuated and those switches rarely go bad (at least from my experience). You can usually cobble one together that does everything you need and is completely legal by combining a 49 body with a 50 tophat. It's been a while since I've dealt with smogging a 93 though.
03-24-18, 09:47 AM
#10
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So what happens if a main component is NLA from mazda and no aftermarket part is available for it ...EGR
my egr is faulty and the CEL is on due to code 16? What ever the number is its the egr last i checked. Cant pass smog cause broken egr.. cant replace cause mazda is NLA .. my FD is a 94 ca car
what do ?
my egr is faulty and the CEL is on due to code 16? What ever the number is its the egr last i checked. Cant pass smog cause broken egr.. cant replace cause mazda is NLA .. my FD is a 94 ca car
what do ?
plan 3 would be to reset the ECU and hope that the CEL stays off for the test.
plan 4 would be to put the non CA EGR valve and ECU in, no more code 16 no more problem!
03-26-18, 06:55 PM
#11
Recovering Miataholic
No Need for EGR to Pass CA Emissions
Our '94 car has been passing CA emissions for years, specifically for the last 10 years without an EGR valve (it's blocked off). But in order to fake the PCME's EGR monitor into reporting normal operation, I added the circuit below next to the PCME in the cabin. It was done in 2008 and has never given any trouble.
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mdp (03-28-18)
03-28-18, 02:03 PM
#14
RX-7 Bad Ass
iTrader: (55)
Holy crap, that's actually an FD EGR valve! It's $300ish, but that's one way to do it for sure.
Dale
Dale
03-28-18, 03:50 PM
#15
Always Bad Advice
This kind of issue will become a bigger problem for us CA owners as the catalysts wear out, there is no OEM replacement for these either and also no CARB approved aftermarket cat AFAIK (not that any tiny aftermarket cat is likely to be able to pass the ASM loaded dyno emissions test used in the enhanced smog check regions).
03-28-18, 04:58 PM
#17
Always Bad Advice
Sorry to hear that. Since it is not listed as NLA I'm hoping that it maybe like the Mazda Competition suspension bushings I ordered two years ago. They were still in the catalog, but there was no stock anywhere, including Japan. It took almost a year and a half to get the final bushing delivered. I suspect that more and more Mazda will only be dealing in bespoke RX-7 parts.
03-30-18, 08:15 AM
#20
RX-7 Bad Ass
iTrader: (55)
All 94 ECU's have the code for the EGR switch. There is no cali/federal 94 ECU. You would need a 93 federal ECU or maybe a 95 ECU (95's have no EGR).
Dale
Dale
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kensin (03-30-18)
03-30-18, 11:44 AM
#21
Recovering Miataholic
So i replaced my ecu with a non fed 94 ecu n3c1 didnt help at all lol code still present 16#
Maybe try a non fed 93 ? Or just clean it up by removing it uhhh thought i could fix it by replacing the ecu
Maybe try a non fed 93 ? Or just clean it up by removing it uhhh thought i could fix it by replacing the ecu
03-31-18, 11:08 AM
#23
Recovering Miataholic
So to make the EGR switch light go away you need the correct ECU.
04-08-18, 08:39 PM
#24
First hand experience here:
My California FD threw the code for the micro switch in the EGR and I couldn’t get it to pass smog for the CEL illuminated. Bought a 49 state 93 ECU off the for sale section for $30. Installed it, passed smog like a champion.
The EGR system is 100% a joke on these cars.
I no longer live in California and I’ll have to worry about passing AZ emissions next month. But I’m a bit more modified now :P
matt
My California FD threw the code for the micro switch in the EGR and I couldn’t get it to pass smog for the CEL illuminated. Bought a 49 state 93 ECU off the for sale section for $30. Installed it, passed smog like a champion.
The EGR system is 100% a joke on these cars.
I no longer live in California and I’ll have to worry about passing AZ emissions next month. But I’m a bit more modified now :P
matt
