Tell me if I'm crazy or not...
08-18-11, 03:14 PM
#1
Lexus Champion
Thread Starter
Tell me if I'm crazy or not...
I am considering getting a GS3 in the near future and living in California my options are limited for upgrades. However....in 2013 CA is going to the plug in diagnostic port test only on cars that are 2000 and newer. This means that they will no longer have to go through the sniff test, just visual and diagnostic.
If the attendant were to pass over the visual and run diagnostic test only, this means that you could do an NA-T or GTE swap as long as you were able to have a successful diagnostic test and did not have any CELs present.
So my theory, and correct me if I'm wrong, is that you "could" run NA-T or GTE off of the USDM GE ECU with a MAP ECUx piggy back to monitor and adjust AFRs. To go a step deeper, you could use a wideband to monitor and set AFRs in the MAP ECU, and hookup O2 Simulators to the GE ECU.
The theory in hooking up the O2 Simulators is that the GE ECU would think that all is good and not throw CELs, all the while you can tune to your needs with the MAP ECU.
Am I crazy, or could this potentially work?
If the attendant were to pass over the visual and run diagnostic test only, this means that you could do an NA-T or GTE swap as long as you were able to have a successful diagnostic test and did not have any CELs present.
So my theory, and correct me if I'm wrong, is that you "could" run NA-T or GTE off of the USDM GE ECU with a MAP ECUx piggy back to monitor and adjust AFRs. To go a step deeper, you could use a wideband to monitor and set AFRs in the MAP ECU, and hookup O2 Simulators to the GE ECU.
The theory in hooking up the O2 Simulators is that the GE ECU would think that all is good and not throw CELs, all the while you can tune to your needs with the MAP ECU.
Am I crazy, or could this potentially work?
08-18-11, 04:27 PM
#5
Lexus Champion
Thread Starter
I was reading Jeff's threads and that's what got me thinking. If the main thing that makes the GE ECU not work with a GTE motor is the fact that the GTE needs more air flow & such. Then you should be able to substitute that data with MAP ECU.
I have heard of issues that people had with the stock ECU fighting an AFR controller wanting to change back to stock settings. If you are using O2 simulators to trick the GE ECU into thinking that all AFRs are stock then you shouldnt have the fighting between the ECU and the piggyback.
I'm not saying that this is a perfect method, but it very well could be a potential solution for us Commiefornia residents who like to modify our cars
I have heard of issues that people had with the stock ECU fighting an AFR controller wanting to change back to stock settings. If you are using O2 simulators to trick the GE ECU into thinking that all AFRs are stock then you shouldnt have the fighting between the ECU and the piggyback.
I'm not saying that this is a perfect method, but it very well could be a potential solution for us Commiefornia residents who like to modify our cars
08-18-11, 04:29 PM
#6
Lexus Champion
Thread Starter
I believe that you are correct that it hasn't passed. I was actually told about the new law by the guy who does my smogs. If this passes then my thoughts could be plausible
08-18-11, 04:31 PM
#7
If that is true then California will have the same emission standards as arizona, and yes that means that they will plug into your OBDII port, idel the car and rev it up to 2000rpms. If no smoke or check engine lights are present that you are good to go.
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08-18-11, 04:36 PM
#8
Lexus Champion
Thread Starter
I think more details need to be checked about reving to xxxx rpm. Last I heard it was diagnostic only, don't even start the car.
I could be totally wrong though. I do believe the law passed last year, at least from some of the sites I have seen.
I could be totally wrong though. I do believe the law passed last year, at least from some of the sites I have seen.
08-18-11, 10:12 PM
#11
lol, I'm just like any other person. I only hear rumors. Until then, we would know. From my experience, a car can pass the functional check, the CEL and the monitors and still fail emissions. I don't think that law should pass and continue how it's already is. We need to clean the air we all share to breathe. 
08-19-11, 10:13 AM
#12
GS4, the law is kind of one sided no? Say for example you have boost and get a bad *** catalytic converter(or two) and keep emissions the same or better than stock. Well at least, under cruising conditions which will make up 99%+ of the time of most drivers anyway, of course WOT is a diff story lol. Is it fair to deny that car on the street? I believe(please correct) California laws dictate that if any of the stock cats are even touched, it's an automatic fail. What if you get a really expensive cat that performs better than stock?
Anyways, my own car has passed through OBD-II emissions testing. I also built another IS300 with a GTE swap running GE ecu with AEM FIC piggybacked that also passes emissions testing. I'll post up some further details soon.
Anyways, my own car has passed through OBD-II emissions testing. I also built another IS300 with a GTE swap running GE ecu with AEM FIC piggybacked that also passes emissions testing. I'll post up some further details soon.
08-19-11, 10:36 AM
#13
GS4, the law is kind of one sided no? Say for example you have boost and get a bad *** catalytic converter(or two) and keep emissions the same or better than stock. Well at least, under cruising conditions which will make up 99%+ of the time of most drivers anyway, of course WOT is a diff story lol. Is it fair to deny that car on the street? I believe(please correct) California laws dictate that if any of the stock cats are even touched, it's an automatic fail. What if you get a really expensive cat that performs better than stock?
Anyways, my own car has passed through OBD-II emissions testing. I also built another IS300 with a GTE swap running GE ecu with AEM FIC piggybacked that also passes emissions testing. I'll post up some further details soon.
Anyways, my own car has passed through OBD-II emissions testing. I also built another IS300 with a GTE swap running GE ecu with AEM FIC piggybacked that also passes emissions testing. I'll post up some further details soon.
As for catalytic converters, in California, you must buy either OEM or California C.A.R.B certified cats if you want to change it. Modifying it in anyway, such as not putting where it originally was or a different cat size will fail smog regardless. People would say a cat is cat. But each application has a different flow rate that's made to fit with the emission standards of the vehicle in CA. Putting a Federal Cat on a CA car will fail the visual inspection on the smog check as modify. So, it's significant you buy the correct cat with the correct application. That's why they got CARB stickers on them so you know which one is for which application.
There are rumors floating around saying that in 2013, California, 2000+ cars will only require OBDII testing, visual inspection, and the snap test. But we'll see. What ever Congress/Legislators wants to do. We just gotta wait and see.