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i got my catless pipes installed and put spacers with mini cats in them and it didn't work. wanted to try a different product that members have had luck with . Thanks
I know some of the guys that don't have a tune and are catless have used spacers without problems , but i just need to find out which ones . good luck . hopefully someone will give us some advise
Yeah, I see lots of old threads where people praise them, but no one can tell me which spacers and or which inserts that they used.
greasycajun: you are probably tuned for catless, where they turn off the monitors for rear O2 sensors. You'll see at least 3 "Not Ready" codes. that just forces the computer to ignore them. If you need to pass emissions, you never will, at least not here in TX. We can only have 1 not ready and pass, and that doesn't help any at all if you have more than one cylinder bank. To be able to pass, you'll have to change your tune to a non-catless tune and put on your/some cats. drive it till monitors are all passing and then get it inspected, just before changing everything back to catless. Hope you have you stock exhaust still
FOUND MY 2 CODES ARE P0054 AND P0060 . THAT MEANS THAT THE MINI CATS ARE WORKING BECAUSE NO P0420 AND P0430. HAVE TO FIGURE OUT THE HEATER CIRCUIT THING THOUGH. I AM USING STRAIGHT SPACERS THAT ARE ABOUT 1 1/4 " LONG. HELP !
those mean the rear O2 sensor heater circuit is not functioning. Possible the sensors were damaged when removing/installing them? I know the plugs are hard to get to...maybe someone unscrewed them without unplugging them?
i got my catless pipes installed and put spacers with mini cats in them and it didn't work. wanted to try a different product that members have had luck with . Thanks
http://www.bigdaddiesgarage.com/mini-cat-cel-fix.html, I've purchase these for a different vehicle, the secondary sensors has not trip the engine light but at the same time, the monitors is not running. But I have not driven the car for long periods and prior to the spacers, the engine light would come on immediately, there not too expansive, could give these a try. I also replace the sensors when spacers were added.
I have catless downpipes and a tune and failed inspection yesterday. I have several "Not Ready" and "Not Supported" items on my OBD II Readiness.
I'm also very interested in finding a way to mark everything "Ready" so I may be able to pass state inspection.
Thanks in advance,
Your tune is most likely disabling the monitors (which is how they get it so your CEL doesn't trip) and causing you to fail. You either --
1. Have to upload your OEM tune and pray to the Gods you can get your car through a cycle (which sets the monitors to "ready") without tripping a CEL (unlikely)
2. Go back to full stock (reinstall catted downpipes and OEM tune) for the inspection and then go back to tune / catless.
3. Contact your tuner and get an updated tune that does NOT disable the o2's so they can set to ready. Then either get spacers or install OEM downpipes for inspection and then put the aftermarkets back in.
do the o2 sensors stay powered when the key is off ? i don't understand how not unplugging them would hurt them. If it was just one side then possible . I don't know. could the ground not be great? strange the spacers are stainless so if it grounds thru the exhaust . Im just spit balling. So this code is an electrical failure with the sensors or the sensors not heating up enough from being out of the exhaust stream? confused !!!
No, previous owner said no. its fast but not crazy fast. I had no codes at all with my stock catted pipes. Only change since then was gutted stock downpipes and 1 1/2 " mini cat o2 spacers.
Does any one know if our secondary o2 sensor tips are short or long. considering trying a large spark plug defouler spacer on the o2 port to help get the sensor closer to heat. Thanks
Well , I haven't been able to get any o2 spacer to work without either an o2 heater code or a cat code to come on. I have tried reaching out to members that have had success , but no body would respond. I guess the only way to actually get the light to stay out is a tune. I was hoping I wouldn't have to do that because of cost factors. Last call for any help on this issue. Thanks
You live in Delaware, right? Even if you do get the light to turn off, you will still fail the emissions test for 'not ready' codes. You'll have to install catalysts to pass, sorry.
On a second note, I think we've established that spacers don't work as well, seeing as all the people who have had "success" have gone suspiciously quiet...
My car has a full catless FI exhaust and is not tuned, but I don’t have check engine and all monitors are ready per STAR??? This is what my o2 look like.
I wonder if that is an aftermarket o2 sensor ? Are you sure your not tuned ?
Well I can’t say for certain as I found a post from previous owner saying the car had a Eurocharged tune, but in talking to EC about ownership transfer they said they have no records of my VIN. Also the car feels stock and it seems to be at stock level from the cars I’ved raced. I will be putting it on the dyno in a few weeks.
My car has a full catless FI exhaust and is not tuned, but I don’t have check engine and all monitors are ready per STAR??? This is what my o2 look like.
I bought the car like this.
That's crazy. You know, Iv'e never been able to confirm this, but I heard that if the monitors are good from having the stock exhaust in place, and you go catless without clearing and resetting the monitors that they will stay good and not throw a code because they will not re-run the test since it is already "complete". Would be interesting to find out if that is true. Have you ever done a code clearing or batter/ecu reset since you have owned the car?
That's crazy. You know, Iv'e never been able to confirm this, but I heard that if the monitors are good from having the stock exhaust in place, and you go catless without clearing and resetting the monitors that they will stay good and not throw a code because they will not re-run the test since it is already "complete". Would be interesting to find out if that is true. Have you ever done a code clearing or batter/ecu reset since you have owned the car?
Well let me confuse you a bit more... I’ve cleared codes dozens of times and nothing about o2 shows up. I’ve had the car for a year and the first couple months it would turn on cel randomly every couple weeks for o2 codes. If I remember correctly it was like “something did not get a response from the o2” and then no more than 1 driving cycle later it would turn off and the monitors would be ready. This is why I believed the car was likely never tuned or detuned. In the past 6 months the cel has not turned on at all and I am still fully catless. Maybe FI is just that good 😃
I should be so lucky. Im going to try using header wrap around the sensor and the downpipe to try and keep the heat in. The mini cat spacers are working for the p0420 and p0430 codes, just not the p0054 and p0060 heater voltage not met
I should be so lucky. Im going to try using header wrap around the sensor and the downpipe to try and keep the heat in. The mini cat spacers are working for the p0420 and p0430 codes, just not the p0054 and p0060 heater voltage not met
ah, now were getting somewhere...wrapping might just do it. Keep us informed
09-01-2020, 01:14 PM
