WS-Y Pipe, MF High-flow Cat, P0420, Weapon-R question.
#1
WS-Y Pipe, MF High-flow Cat, P0420, Weapon-R question.
Does anybody have a Warpspeed Y-Pipe, Magnaflow (MF) High-flow cat, and that nagging P0420 code?
Over the past year, the P0420 code seems to return about once a month.
I'm growing very tired of resetting it. I'm afraid of wearing out the OBDII plug from all of the resets. Ha!
So tonight I received a new Weapon-R. It may be a couple of weeks before I get to install it. The weather is really crummy right now.
The Weapon-R instructions say it will not work if a cat is still in the exhaust system with the vehicle. I don't think I have much of a cat or I wouldn't be receiving the P0420.
Has anybody with my combination of WS-Y + MF HFC & P0420 found a solution with the Weapon-R?
Here's a picture of the Weapon-R.
Over the past year, the P0420 code seems to return about once a month.
I'm growing very tired of resetting it. I'm afraid of wearing out the OBDII plug from all of the resets. Ha!
So tonight I received a new Weapon-R. It may be a couple of weeks before I get to install it. The weather is really crummy right now.
The Weapon-R instructions say it will not work if a cat is still in the exhaust system with the vehicle. I don't think I have much of a cat or I wouldn't be receiving the P0420.
Has anybody with my combination of WS-Y + MF HFC & P0420 found a solution with the Weapon-R?
Here's a picture of the Weapon-R.
Last edited by CS_AR; 12-16-2016 at 07:52 PM.
#2
Does anybody have a Warpspeed Y-Pipe, Magnaflow (MF) High-flow cat, and that nagging P0420 code?
Over the past year, the P0420 code seems to return about once a month.
I'm growing very tired of resetting it. I'm afraid of wearing out the OBDII plug from all of the resets. Ha!
So tonight I received a new Weapon-R. It may be a couple of weeks before I get to install it. The weather is really crummy right now.
The Weapon-R instructions say it will not work if a cat is still in the exhaust system with the vehicle. I don't think I have much of a cat or I wouldn't be receiving the P0420.
Has anybody with my combination of WS-Y + MF HFC & P0420 found a solution with the Weapon-R?
Here's a picture of the Weapon-R.
Over the past year, the P0420 code seems to return about once a month.
I'm growing very tired of resetting it. I'm afraid of wearing out the OBDII plug from all of the resets. Ha!
So tonight I received a new Weapon-R. It may be a couple of weeks before I get to install it. The weather is really crummy right now.
The Weapon-R instructions say it will not work if a cat is still in the exhaust system with the vehicle. I don't think I have much of a cat or I wouldn't be receiving the P0420.
Has anybody with my combination of WS-Y + MF HFC & P0420 found a solution with the Weapon-R?
Here's a picture of the Weapon-R.
#3
I had the same problem with that high flow magnaflow CAT. The O2 spacer only kept the P0420 from appearing as often.
Read these threads I posted in regarding that setup.
https://maxima.org/forums/4th-genera...ing-p0420.html
Post 153
https://maxima.org/forums/4th-genera...ll-pics-4.html
Read these threads I posted in regarding that setup.
https://maxima.org/forums/4th-genera...ing-p0420.html
Post 153
https://maxima.org/forums/4th-genera...ll-pics-4.html
#4
I had the same problem with that high flow magnaflow CAT. The O2 spacer only kept the P0420 from appearing as often.
Read these threads I posted in regarding that setup.
https://maxima.org/forums/4th-genera...ing-p0420.html
Post 153
https://maxima.org/forums/4th-genera...ll-pics-4.html
Read these threads I posted in regarding that setup.
https://maxima.org/forums/4th-genera...ing-p0420.html
Post 153
https://maxima.org/forums/4th-genera...ll-pics-4.html
Did you need to remove the S-pipe to install the Weapon-R elbow when you tried it?
#5
Thanks JH. I remember those threads about the generic cat. I actually have two OEM cats available to put on this one. One is in better condition than the other. I will need to pull the one in better condition from the donor car.
Did you need to remove the S-pipe to install the Weapon-R elbow when you tried it?
Did you need to remove the S-pipe to install the Weapon-R elbow when you tried it?
#7
#9
........The high-flow magnaflow CAT that WS distributes is not made for a Nissan but for a Buick. Magnaflow will not cover the warranty because their CAT was installed on a wrong vehicle. WS will not give RMAs because they don't want to get targeted for distributing CATs to wrong vehicles.
#10
I've had it about 3 years. The last year has seen a lot of P0420s.
My youngest son called and said he has fixed this issue on his Civic (with headers and deleted cats) and on a friend's catless Ranger/Danger pickup with a 5.0 V8. They put together some combination of a spark plug extender and another part that sounded like the Weapon-R elbow to trick the rear O2 into thinking everything is ok. He'll be back from school next week. I'll get him to figure it out. Max III was his car before he took over the Civic.
My youngest son called and said he has fixed this issue on his Civic (with headers and deleted cats) and on a friend's catless Ranger/Danger pickup with a 5.0 V8. They put together some combination of a spark plug extender and another part that sounded like the Weapon-R elbow to trick the rear O2 into thinking everything is ok. He'll be back from school next week. I'll get him to figure it out. Max III was his car before he took over the Civic.