[len_eng]

I have a 2018 2SS, 24000 miles and the check engine light came on. P0430 code that the dealer blamed on my K and N filter (panel filter in standard air box) Is there really an issue with this filter? I thought that we could use another brand of air filter. Would a catch can cause the problem? I am concerned for future reliability without a catch can. I have pulled the K and N filter (which I have had no issue on through many GM vehicles more than .5 million miles driven). Fortunately the repair was covered under warranty and they replaced the cat converter as well as two O2 sensors.

[DaveC113]

IMO it's best to use the stock air filter and replace it more often, especially on a MAF equipped motor as the oil in K&N and similar filters can contaminate the MAF sensor and cause the engine to run lean.

Catch cans are debatable but for a huge majority of uses I believe it is not necessary and you're risking your warranty over something that provides no benefit.

[TJay74]

Originally Posted by DaveC113

IMO it's best to use the stock air filter and replace it more often, especially on a MAF equipped motor as the oil in K&N and similar filters can contaminate the MAF sensor and cause the engine to run lean.

Catch cans are debatable but for a huge majority of uses I believe it is not necessary and you're risking your warranty over something that provides no benefit.

A K&N filter will not cause any MAF issue if it is oiled normally, more so if it is right out of the box. It sure wont cause a P0430 which is a CAT code saying the CAT is not working correctly.

I have always used a catch can on all of my GM vehicles since 2001. I recently had my 2016 GMC Sierra with the 6.2 in for a bad injector. Tech had to pull my intake and said my valves and tops of the pistons were some of the cleanest he had seen, wanted to know how often I had the top end cleaner done. When I said never I have a catch can on the truck, he told me it was the best decision I made.

Point is the CC work, while it wasnt an issue on the prev generation engines it is on the DI engines where the valves dont get any raw fuel on them to clean them off.

If it wasnt for me having meth injection on my Camaro I would be trying to figure out a way to get a CC back on it due to my Procharger install.

[DaveC113]

Originally Posted by TJay74

A K&N filter will not cause any MAF issue if it is oiled normally, more so if it is right out of the box. It sure wont cause a P0430 which is a CAT code saying the CAT is not working correctly.

I have always used a catch can on all of my GM vehicles since 2001. I recently had my 2016 GMC Sierra with the 6.2 in for a bad injector. Tech had to pull my intake and said my valves and tops of the pistons were some of the cleanest he had seen, wanted to know how often I had the top end cleaner done. When I said never I have a catch can on the truck, he told me it was the best decision I made.

Point is the CC work, while it wasnt an issue on the prev generation engines it is on the DI engines where the valves dont get any raw fuel on them to clean them off.

If it wasnt for me having meth injection on my Camaro I would be trying to figure out a way to get a CC back on it due to my Procharger install.

I've seen K&N filters result in fouled MAFs and cracked headers. Not in every situation but it's possible.

As for CC, I'm not going to duplicate a debate that is already ongoing in another thread, but C&D's long term C7 Grand Sport gained power over their 40k mile testing. Another member posted info from a Vette engineer saying they are not necessary. IMO they are not worth risking warranty issue over, but if properly installed they won't hurt anything and I'd use one along with getting rid of the AFM lifters after the warranty is up.

I honestly don't get modifying the new Camaros... the ZL1 has plenty of power. Air filters and catch cans seem like they don't offer nearly enough to risk warranty issues on.

[TJay74]

Why not modify a new Camaro, all the reason to have the car the way you want it at what ever power level you want it at.

So far I am $10k less than a ZL1 and my car is built the way I want it. I paid $40k for a 17 1LE when you couldnt touch a 17 ZL1 for under $65k, even with my mods I am still ahead versus a ZL1.

[len_eng]

Thanks for all the responses. The K and N filter was straight out of the box, not yet cleaned and re-oiled (not enough miles). I will stick to the standard AC Delco filters listed in the owner's manual, and reinstall the can.

[Whocares05050]

Originally Posted by DaveC113

IMO it's best to use the stock air filter and replace it more often, especially on a MAF equipped motor as the oil in K&N and similar filters can contaminate the MAF sensor and cause the engine to run lean.

Catch cans are debatable but for a huge majority of uses I believe it is not necessary and you're risking your warranty over something that provides no benefit.

You should really stick with what you can prove rather than conspiracy theories...


I've noticed multiple times you have stated warranties. You should start education yourself rather than spreading misinformation.

[SnakeEyeSS]

I know K&N says they will talk to a dealer for you if they blame a problem on a K&N. Why not call them and ask? If you have never oiled it and just dropped it in than let them try it, you did pay for their product.

[DaveC113]

Originally Posted by Whocares05050

You should really stick with what you can prove rather than conspiracy theories...


I've noticed multiple times you have stated warranties. You should start education yourself rather than spreading misinformation.

I know, right? I only have a Vette powertrain engineer stating the same thing and evidence that the LT1 may actually pick up power as it's used rather than having carbon deposits clog up the intake manifold and valve.

IMO it's exactly the other way around. You're the ones with the conspiracy theories and faulty logic that are spreading misinformation. You're totally ignorant imo.

[JonD]

You guys are still talking about catch cans voiding warranty’s!?

#1 If you’re not smart enough to take 5min to pop off sometime before you take your car in for a claim you shouldn’t be giving people advice on forums

#2 Catch Cans work... sorry engineers are too proud but I’m not an engineer so probably don’t know much

[TJay74]

Originally Posted by DaveC113

I know, right? I only have a Vette powertrain engineer stating the same thing and evidence that the LT1 may actually pick up power as it's used rather than having carbon deposits clog up the intake manifold and valve.

IMO it's exactly the other way around. You're the ones with the conspiracy theories and faulty logic that are spreading misinformation. You're totally ignorant imo.

You do realize all motors pick up power over time, correct?

The typical area on most GM motors is around the 10k mile point as the engine will be fully broke in. Also I have worked with the GM engineers for a couple of years on the new truck platform. Several of them have said that there is nothing wrong with running a catch can as it does keep the carbon deposits down inside of the intake and keeps the oil out of the intake and combustion process.

If CC were so bad GM wouldnt be putting a small scale one on their performance vehicles now, the only bad is it doesnt filter the whole system fully like a 3rd party CC does.

This was straight from the chief engineer over the truck division, he is the Al O. of the Camaro line. While they would love to put a CC system on vehicles, they have to worry about what the end customer will take care of and relying on a customer to empty a catch can on a regular basis could lead to other issues along with the complexity of adding a CC system to a OEM application and then having to re-certify the powertrain again as well.

[DaveC113]

Originally Posted by TJay74

You do realize all motors pick up power over time, correct?

The typical area on most GM motors is around the 10k mile point as the engine will be fully broke in. Also I have worked with the GM engineers for a couple of years on the new truck platform. Several of them have said that there is nothing wrong with running a catch can as it does keep the carbon deposits down inside of the intake and keeps the oil out of the intake and combustion process.

If CC were so bad GM wouldnt be putting a small scale one on their performance vehicles now, the only bad is it doesnt filter the whole system fully like a 3rd party CC does.

This was straight from the chief engineer over the truck division, he is the Al O. of the Camaro line. While they would love to put a CC system on vehicles, they have to worry about what the end customer will take care of and relying on a customer to empty a catch can on a regular basis could lead to other issues along with the complexity of adding a CC system to a OEM application and then having to re-certify the powertrain again as well.

I'm absolutely not going to debate this any further.

The only reason I'm responding is because you've misrepresented what I've said. "If CC were SO BAD"? What are you talking about?!?!

I said myself I'd use one along with replacing the AFM lifters after the warranty is over. They aren't "BAD". They are just not entirely necessary and you do risk having a dealer tell you they won't warranty the engine, and even if the dealer has no leg to stand on it's a huge pain you now have to deal with.

We have vendors claiming you'll clog up the intake so bad you lose power. This is all I'm saying is not necessarily true, because it isn't, and that is a FACT.

IDK why you have to twist my words and make me look like some sort of anti-catch can evangelist? Things just aren't that simple in life. It's not all black and white.

If you want to use a CC and take it off before you go to the dealer I don't see the problem? Have at it. I simply choose not to deal with it. GOT IT?! GOOD!

[18ss376]

I would say if you get a CEL on something you modified or added, get a programmer to tune for each change. Is it not that simple?