C7 Supercharger issue.
Thread Starter
Heel & Toe
Joined: Jun 2015
Posts: 20
Likes: 0
C7 Supercharger issue.
Hello. My first post. I have a 2015 z51 c7. I just had an East Coast SC installed. I also installed the American racing headers and meth injection. After 3 1/2 weeks of waiting for my kit from ecs they sent a banged up pulley and one of the shrouds was broken. After 4 or 5 days i got the new pulley to find out it was the large one. We installed it waiting for correct part, of course the hp will go up. Anyway, I immediately got a p2227 code barometric pressure issue... The shop is all over it and I have confidence in them, but nature forces me to help track down the problem. Any advice of where to start?
Burning Brakes
Joined: Mar 2014
Posts: 1,064
Likes: 152
Hello. My first post. I have a 2015 z51 c7. I just had an East Coast SC installed. I also installed the American racing headers and meth injection. After 3 1/2 weeks of waiting for my kit from ecs they sent a banged up pulley and one of the shrouds was broken. After 4 or 5 days i got the new pulley to find out it was the large one. We installed it waiting for correct part, of course the hp will go up. Anyway, I immediately got a p2227 code barometric pressure issue... The shop is all over it and I have confidence in them, but nature forces me to help track down the problem. Any advice of where to start?
Premium Supporting Vendor
Joined: Oct 2004
Posts: 23,599
Likes: 1,224
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
Let the shop due their thing, it's a very quick fix. Sorry UPS paid kick ball with your kit. We do our best to package them very thoroughly, but even with that once in a while they still get us.
Premium Supporting Vendor
Joined: Oct 2004
Posts: 23,599
Likes: 1,224
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
Premium Supporting Vendor
Joined: Oct 2004
Posts: 23,599
Likes: 1,224
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
Moderator emeritus
Joined: Jun 2001
Posts: 18,599
Likes: 3,951
From: Jacksonville Florida BWO Dayton, Cincinnati, Bloomsbury NJ, Cincinnati
2015 C7 of the Year Finalist
Shutting off a code is to disable it so it won't test for it and pop back up.
Clearing the code just turns it off until it comes right back on.
Disable the code.
http://www.ls2.com/forums/showthread...ve-amp-LS1EDIT
That link gives an idea of what disabling means. I don't know what software you are using to tune and that link is kinda old but I think it'll help.
Elmer
Clearing the code just turns it off until it comes right back on.
Disable the code.
http://www.ls2.com/forums/showthread...ve-amp-LS1EDIT
That link gives an idea of what disabling means. I don't know what software you are using to tune and that link is kinda old but I think it'll help.
Elmer
Last edited by eboggs_jkvl; Jun 1, 2015 at 04:52 PM.
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Platinum Supporting Vendor
Joined: Sep 2001
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From: VENTURA Ca
I'll probably get in trouble for saying this but here goes. The smaller
3 1/2" MAF tube requires that the MAF be scaled back to compensate. This lowers the torque value that the computer sees and changes how the transmission shifts.
It's kind of like the earlier C6 A6 cars that had to be scaled back in order to compensate for the 63# injector hard limit. The trans pressures etc. had to be upped to make up for it.
A guess, but an educated guess.
3 1/2" MAF tube requires that the MAF be scaled back to compensate. This lowers the torque value that the computer sees and changes how the transmission shifts.
It's kind of like the earlier C6 A6 cars that had to be scaled back in order to compensate for the 63# injector hard limit. The trans pressures etc. had to be upped to make up for it.
A guess, but an educated guess.
Thread Starter
Heel & Toe
Joined: Jun 2015
Posts: 20
Likes: 0
Yes sir, they adjusted maf among other things. Guy tuning it wasn't explaining to me. I had to catch info thru over hearing their discussion.
It made 640hp but has a hickup/cough when I pin it to the floor. It hickup and surges intermittently. Sometimes going lean, I saw 16, and hp was like it hit a wall.
Im baffled and worried.
Ray
It made 640hp but has a hickup/cough when I pin it to the floor. It hickup and surges intermittently. Sometimes going lean, I saw 16, and hp was like it hit a wall.
Im baffled and worried.
Ray
Premium Supporting Vendor
Joined: Oct 2004
Posts: 23,599
Likes: 1,224
From: Providing the most proven supercharger kits for your C5/6/7 609-752-0321
I'll probably get in trouble for saying this but here goes. The smaller
3 1/2" MAF tube requires that the MAF be scaled back to compensate. This lowers the torque value that the computer sees and changes how the transmission shifts.
It's kind of like the earlier C6 A6 cars that had to be scaled back in order to compensate for the 63# injector hard limit. The trans pressures etc. had to be upped to make up for it.
A guess, but an educated guess.
3 1/2" MAF tube requires that the MAF be scaled back to compensate. This lowers the torque value that the computer sees and changes how the transmission shifts.
It's kind of like the earlier C6 A6 cars that had to be scaled back in order to compensate for the 63# injector hard limit. The trans pressures etc. had to be upped to make up for it.
A guess, but an educated guess.
We sized our MAF tube that way for a specific reason, that reason being consistent MAF readings. Which is the reason why we have sold several of our MAF tubes TO YOUR CUSTOMERS.
OP, I'm a little concerned about the tuning of your vehicle.
Last edited by Zymurgy; Jun 26, 2015 at 04:58 PM. Reason: Deleted vendor to vendor pissing contest
Racer
Joined: Jul 2007
Posts: 441
Likes: 156
From: Jax FL
An incorrect guess, but hey, your sales are down so do what you need to right?
We sized our MAF tube that way for a specific reason, that reason being consistent MAF readings. Which is the reason why we have sold several of our MAF tubes TO YOUR CUSTOMERS.
OP, I'm a little concerned about the tuning of your vehicle.
We sized our MAF tube that way for a specific reason, that reason being consistent MAF readings. Which is the reason why we have sold several of our MAF tubes TO YOUR CUSTOMERS.
OP, I'm a little concerned about the tuning of your vehicle.
Racer
Joined: Jul 2007
Posts: 441
Likes: 156
From: Jax FL
I just would hate to see all the money you spent (and then some) go out the window due to bad tuning.