Curious to know what kind of header pipe gaskets everyone received from EMS. The 1st set had no steel inner ring and burnt to s*** during the first couple of days after install. The 2nd set installed today had a very nice steel reinforcement ring with an extra layer of gasket to tuck up into the manifold hole. Seems much much better than before.
New EMSpowered exhaust thread
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Mine came with metal ringed gaskets, but there wasn't any "extra" material to fill the gap in the exhaust manifold.
I got the y-pipe installed with o2 sensor but I managed to booger up one of my new O2 studs, so I couldn't get the frame crossover pipe installed (or chose not to rather). Tonight I'll be finishing this up and we'll just see how things go!
For reference, I did NOT adjust the manifold at all (no replacement gaskets available at the dealership), I DID put a small bead of copper RTV on both sides of the paper gaskets provided by EMS at the interface from the y-pipe to the manifold.
Lets see how she sounds when I get it all buttoned up!
To be honest the thing I'm most worried about is emissions here in Colorado. Does anyone know if there is a place I can take it to get tested for NOx and CO2 without getting "on the radar" with aircare colorado?
I got the y-pipe installed with o2 sensor but I managed to booger up one of my new O2 studs, so I couldn't get the frame crossover pipe installed (or chose not to rather). Tonight I'll be finishing this up and we'll just see how things go!
For reference, I did NOT adjust the manifold at all (no replacement gaskets available at the dealership), I DID put a small bead of copper RTV on both sides of the paper gaskets provided by EMS at the interface from the y-pipe to the manifold.
Lets see how she sounds when I get it all buttoned up!
To be honest the thing I'm most worried about is emissions here in Colorado. Does anyone know if there is a place I can take it to get tested for NOx and CO2 without getting "on the radar" with aircare colorado?
The FSM for P0125 gives the following possible causes:
How old are the O2's? Have you checked the wiring? Have you run the FSM tests to validate the O2's are in spec?
- Open or short in heated oxygen sensor circuit
- Heated oxygen sensor
How old are the O2's? Have you checked the wiring? Have you run the FSM tests to validate the O2's are in spec?
On the questions about the gaskets. Jason, the gaskets I sent you the first time were from the same supplier, and the same part number. It may have been an "equivelant" part that they substituted for a short time. I've sourced some nice thick copper gaskets which are on the way and should be here within the next few days. If there's anyone that wants a set of the new copper gaskets feel free to drop me a line and I'll send you a set for your EMSPowered exhaust.
On the 93/94 trucks, I see a couple of you are getting O2 sensor codes. I know out of the 12 or so 93/94 exhausts we've shipped so far a couple folks have had problems with O2 sensor codes. For those that have had this problem, have you tried replacing the sensors, and have you confirmed that you don't have any exhaust leaks upstream from the O2 sensors?
Jason, for the code P0125 that you're getting, I'm not 100% familiar with the exact possible causes of it on the FZJ80, but on most 90's Toyota's it usually due to either coolant temp readings or O2 sensor heater modules. Could be due to a number of things which may include but not limited to the following: thermostat, coolant temp sensor, bad circuit or wiring going to O2 sensor, the O2 sensor heater module itself... In most cases this will not allow the ECU to switch to closed loop and you'll notice a decrease in power. If you have not noticed a change in coolant temps, then I would start by checking the your O2 sensors and the wiring going to them with a multimeter to make sure they're within spec.
On the 93/94 trucks, I see a couple of you are getting O2 sensor codes. I know out of the 12 or so 93/94 exhausts we've shipped so far a couple folks have had problems with O2 sensor codes. For those that have had this problem, have you tried replacing the sensors, and have you confirmed that you don't have any exhaust leaks upstream from the O2 sensors?
Jason, for the code P0125 that you're getting, I'm not 100% familiar with the exact possible causes of it on the FZJ80, but on most 90's Toyota's it usually due to either coolant temp readings or O2 sensor heater modules. Could be due to a number of things which may include but not limited to the following: thermostat, coolant temp sensor, bad circuit or wiring going to O2 sensor, the O2 sensor heater module itself... In most cases this will not allow the ECU to switch to closed loop and you'll notice a decrease in power. If you have not noticed a change in coolant temps, then I would start by checking the your O2 sensors and the wiring going to them with a multimeter to make sure they're within spec.
Gaskets
Baktasht-
I know we have communicated in email today about these gaskets, but I do not fully understand your response. I have two totally different types of gaskets with a 180 in design from the first shipment vs. the latest. If you have a supplier, who considers these "equivalent", I think a QC check (or CTJ) is in order. I am providing the pictures as my case here. I apologetically did not take a pic of the inner steel ring gasket's other side, but as you can see these are not in the same comprehensive level of "equivalent". My point is the thin paper gasket is completely burnt to shreds (front gasket is not even recognizable) after 2 weeks. I am interested in your new gasket set, but really do not want to take the y pipe off again, if this new set of inner steel ring gaskets is reliable (unless you have a new non whistle y pipe to try out
)
Baktasht-
I know we have communicated in email today about these gaskets, but I do not fully understand your response. I have two totally different types of gaskets with a 180 in design from the first shipment vs. the latest. If you have a supplier, who considers these "equivalent", I think a QC check (or CTJ) is in order. I am providing the pictures as my case here. I apologetically did not take a pic of the inner steel ring gasket's other side, but as you can see these are not in the same comprehensive level of "equivalent". My point is the thin paper gasket is completely burnt to shreds (front gasket is not even recognizable) after 2 weeks. I am interested in your new gasket set, but really do not want to take the y pipe off again, if this new set of inner steel ring gaskets is reliable (unless you have a new non whistle y pipe to try out
)
The saga continues!! Come to find out today after spending an insane amount of money and time on this project that this exhaust is not legal in the state of Colorado, sweet!!!! Took to pass emissions today and the numbers passed with flying colors however the truck failed because it only has one Cat now. Spoke to two different state dept. only to find out the wonderful news. There reasoning, and this is a good one, "it may have passed the numbers and be burning clean as the next guy, but it could be cleaner". Are you kidding me!!! That's the best they can do. If that logic applied to everyone, we'd all be riding bikes on the trails. Laughable and extremely frustrating at the same time. Let me hear what you have to say, this should be fun
Baktasht-
I know we have communicated in email today about these gaskets, but I do not fully understand your response. I have two totally different types of gaskets with a 180 in design from the first shipment vs. the latest. If you have a supplier, who considers these "equivalent", I think a QC check (or CTJ) is in order. I am providing the pictures as my case here. I apologetically did not take a pic of the inner steel ring gasket's other side, but as you can see these are not in the same comprehensive level of "equivalent". My point is the thin paper gasket is completely burnt to shreds (front gasket is not even recognizable) after 2 weeks. I am interested in your new gasket set, but really do not want to take the y pipe off again, if this new set of inner steel ring gaskets is reliable (unless you have a new non whistle y pipe to try out
Jason, what you have pictured there of the old gasket is what is left over after it's been burned through. The gasket before it was burned through has a 3 layers of gasket material on either side of the gasket, metal "mesh" webing through the entire gasket, and as you pointed out, no metal ring in the center like the new set I sent you. They both hold the same part number from the local supplier we get them from. When there is an exhaust leak (especially if it is near the engine where exhaust gas temps are very high) gaskets will burn up fairly quickly. Even multi layer steel gaskets used on turbo's will burn through eventually if there is a leak. Either way, we're switching to the copper gaskets that I mentioned in my above post, and moving away from the standard gaskets. The copper ones will hold up to higher heat ranges better and last much longer.
As I've told many folks that have asked and as stated on our website as well. The exhaust will pass the sniffer emissions tests just fine, but different counties have different rules related to the modification of the emissions equipment and exhaust on your vehicle. It will pass the "sniffer" portion of the test with flying colors as you saw yourself. But some counties still require you to keep two cats, and some counties even go as far as stating that you can only replace them with OEM parts.
With that said, I've personally always been able to pass emissions tests when living in California and when living in Texas even on vehicles that I've owned that had a single cat and in some cases no cats at all but were running clean. It's just a matter of whether the inspector actually looks for the catalytic convertors or not. Some do, some don't.
Yeah it depends on which aircare location you go to. Some could give a s*** about the visual. Your best bet is to make a bunch of passes by those road side emissions places within the 6 months before your plate expires and you don't have to go into a testing facility.
Ebag333- I wonder why the ECU is giving different causes for the P0125 and your FSM is calling for O2's?? Isn't there another code from the ECU for the O2's??
1) I know the thermostat is good. (temp changes from starting to warmup)
2) Coolant changed earlier this year (level is still ok)
3) Faulty ECT- I do not know how to check this connector except replacement?
I still do not understand the disconnect with the ECU read out and your FSM reference to the O2's.
Seems tricky to me, but I see a lot of people are having O2 issues after installing the EMS system.
Btw- my O2's were never disconnected from the wire harness during install. New Mr T O2 gaskets were installed. Hmmmmm
Im already over my expiration date by six weeks because I was waiting on..... You know I've actually heard the same thing about the location variations. Last week they wouldn't test me because they said my tires were too big. Now they hit me with this bull....! Any recommendations? I've heard the Parker station is a bit lax.
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Likely the printout is giving generic information, not 80 specific. Which you gonna believe, the FSM, or some 3rd party?
The O2's are the cause of the code. You need to check them as per the FSM and see if they pass the tests. And answering my questions wouldn't hurt.
P0125- O2's vs ECT
Still trying to decide if I should replace the O2's or the ECT. I see this message from Beno and go
https://forum.ih8mud.com/80-series-tech/154476-po130-po133-then-po125-cel-codes.html
My crusier mechanic says there is no use in testing O2's as he has seen them ohm good and turn out bad and the vice versa.
Still trying to decide if I should replace the O2's or the ECT. I see this message from Beno and go
https://forum.ih8mud.com/80-series-tech/154476-po130-po133-then-po125-cel-codes.html
My crusier mechanic says there is no use in testing O2's as he has seen them ohm good and turn out bad and the vice versa.
I can't remember...do they "log" anything when you fail, like the reasons? If not, run down to Parker and give it a go. I can't recall if the fine folks over at the County Line Rd and Colorado Blvd location check...I usually don't watch...I just get into my yoga stance and pray that my rigs pass and wait for the news
Most folks I've chatted with that live in emissions areas in CO have just bent over and gone with two cats....some even had to go with 2 OEM cats to pass
One of the reasons I'm still running the stock setup and as much as I hate the low hanging cats I'll probably replace OEM with OEM when my cats/exhaust finally give up the ghost. Sad that those that make up the rules aren't logical and happy with the fact that the rig is running clean and more worried about the visual test.
Hello. I don't have any answers but questions. Is this EMS system a wise purchase? I know it's much cheaper than equivilent oem parts, but I've read about fitment issues, vibration issues, transfer case dampener interference, gasket issues, leaks, whistling, etc. Are all those potential headaches worth the lower price? Our time spent to "make it work" really costs something. I really kind of want plug-and-play. I don't want to reengineer something that would cost me over $1000. Thanks.
Also reported this on the "O2 sensor= better gas mileage" thread- Replaced the front O2 with a Cdan part last night. CEL (P0125) is gone after 2 engine starts. Still going to replace the rear O2, but thought I would put this out there since this code is so rare. Btw- I am happy with this exhaust system so far. 3rd and 4th gear have been a little noisy, but it seems to be settling down with new gaskets and now a new O2.Status of trouble shooting:
1) new robust gaskets installed
2) ECU battery reset
3) CEL turned off
4) CEL back on
5) Autozone CEL code report attached
Bueller?
Do you know anyone on the Western slope. We don't have emission checks over here. My Dad's '95 has a check engine light that won't go away, so instead of registering it in Boulder County, we register it in Garfield County where I live.
Baktasht--
I ordered a Header - Back for my 96 FZJ80 in May, and last week I received a notice of shipment and got really excited about getting the system and installing it as I have had a leak for quite some time. I was quite disappointing when I only received 2 seals, 2 nuts and bolts and an exhaust clamp. I have tried to email you via the posted address and call but no answer and no response. Any idea when I will receive the rest of my system?
Thanks for you quick response.
Brad
I ordered a Header - Back for my 96 FZJ80 in May, and last week I received a notice of shipment and got really excited about getting the system and installing it as I have had a leak for quite some time. I was quite disappointing when I only received 2 seals, 2 nuts and bolts and an exhaust clamp. I have tried to email you via the posted address and call but no answer and no response. Any idea when I will receive the rest of my system?
Thanks for you quick response.
Brad
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Hi Brad,
You've received the hardware pack. Your exhaust itself is in another package and is in route to you. You should have received the FedEx tracking number last week via email. I'll PM it to you now as well.
