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      08-11-2015, 12:11 PM   #1
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Unhappy Tuning Headache

Ok guys. So I just completed my three stage manifold install and flashed my AA stage 2 tune. Only problem is the car is idling very rough. I was able to pull codes reading cylinder misfires, MAF issue, and other fun stuff
Now I'm afraid it's a vacuum leak. I'm think it could also be the oil breather or PCV. Nothing broke when installing the manifold and everything was connected to the best of my knowledge and transferred over accordingly. Does the new tune need time to adapt? After 5 minutes running the idle was OK. BUT, even before I put the new tune on, I fired the car up after the manifold install and the idle was quite rough then as well. I'm thinking a leak/loose connection somewhere, but trying to be methodical before I start tearing apart the engine bay again lol
Thanks
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      08-11-2015, 12:16 PM   #2
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Quote:
Originally Posted by Nordkeyz73
Ok guys. So I just completed my three stage manifold install and flashed my AA stage 2 tune. Only problem is the car is idling very rough. I was able to pull codes reading cylinder misfires, MAF issue, and other fun stuff
Now I'm afraid it's a vacuum leak. I'm think it could also be the oil breather or PCV. Nothing broke when installing the manifold and everything was connected to the best of my knowledge and transferred over accordingly. Does the new tune need time to adapt? After 5 minutes running the idle was OK. BUT, even before I put the new tune on, I fired the car up after the manifold install and the idle was quite rough then as well. I'm thinking a leak/loose connection somewhere, but trying to be methodical before I start tearing apart the engine bay again lol
Thanks
This happened to me and a lot of other people but We had headers..

Hmm

Sounds like a bad connection if it happened before the tune but idk
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      08-11-2015, 12:21 PM   #3
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Ok, well at least I'm not on my own here haha Yeah, research has led me to believe that it may be the damn brittle CCV system.
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      08-11-2015, 12:30 PM   #4
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I did not experience a rough idle of any sort from my 3 stage install, header install, or tune install. It sounds as if something went wrong with your work.
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      08-11-2015, 01:35 PM   #5
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Spray some throttle body cleaner around the intake manifold and all hoses while the car is running. If the engine changes sound or rpm, you have a leak. Spray everything really good, try to narrow it down.
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      08-11-2015, 01:58 PM   #6
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Quote:
Originally Posted by Nordkeyz73 View Post
Ok guys. So I just completed my three stage manifold install and flashed my AA stage 2 tune. Only problem is the car is idling very rough. I was able to pull codes reading cylinder misfires, MAF issue, and other fun stuff
Now I'm afraid it's a vacuum leak. I'm think it could also be the oil breather or PCV. Nothing broke when installing the manifold and everything was connected to the best of my knowledge and transferred over accordingly. Does the new tune need time to adapt? After 5 minutes running the idle was OK. BUT, even before I put the new tune on, I fired the car up after the manifold install and the idle was quite rough then as well. I'm thinking a leak/loose connection somewhere, but trying to be methodical before I start tearing apart the engine bay again lol
Thanks
Did you flash it yourself with the provided tools? Did you have your car hooked to a steady powersource to ensure the battery voltage never dropped?

Was the manifold and valves new or used?
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      08-11-2015, 02:11 PM   #7
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Quote:
Spray some throttle body cleaner around the intake manifold and all hoses while the car is running. If the engine changes sound or rpm, you have a leak. Spray everything really good, try to narrow it down.
I will do this ASAP.

Quote:
Did you flash it yourself with the provided tools? Did you have your car hooked to a steady powersource to ensure the battery voltage never dropped?

Was the manifold and valves new or used?
I flashed it myself and had the car on a Schumacher battery charger. Brand new manifold and everything.
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      08-18-2015, 03:48 PM   #8
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UPDATE: So I replaced the oil breather hose and valve, and took apart every piece and cleaned it. I labeled everything and methodically checked to make sure everything was where it was supposed to be. Upon startup, there is still a rough spot that goes away after a minute. It's a lot better than when I first posted this but now I'm wondering if something else is the problem. GOD DAMN
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      08-18-2015, 05:00 PM   #9
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Keep getting misfires in all cylinders. I wish I could just enjoy this mod. So basically as soon as I switched to the DISA manifold, this all started happening. Is it possible to have the DISA wires swapped?
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      08-18-2015, 05:14 PM   #10
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DISA can't cause misfires.
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      08-18-2015, 05:26 PM   #11
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Ok. MAF maybe. I'm trying to think of all the parts I took off/unplugged for the DISA manifold swap. It HAS to be something I did, everything before the manifold ran fantastic. I was going to clean the MAF to start, good idea?
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      08-18-2015, 06:28 PM   #12
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What codes are you getting?
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      08-18-2015, 06:34 PM   #13
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Unplug the maf and see how it drives/starts.
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      08-18-2015, 09:41 PM   #14
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Going to start by unplugging MAF tomorrow as well as spraying some MAF cleaner. As far as codes I am now getting the following:

29CD Misfire, Cyl. 1
29CF Misfire, Cyl. 3
29CE Misfire, Cyl. 2
29CC Misfire, several Cyls


Before checking all connections today, last week I got a whole bunch:

Cyl 1,5,6, and several cyl Misfire codes.
2D06 air mass system
2D29 differential pressure sensor, suction pipe: plausibility
29E0 fuel mixture control
29E1 fuel mixture control 2

Then the initial installation gave some of the previous in addition to:

2F9E thermal oil sensor
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      08-18-2015, 09:47 PM   #15
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      08-18-2015, 10:08 PM   #16
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Ouch.
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      08-19-2015, 01:13 AM   #17
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Have you cleared All adaptations using INPA? After installing a new tune, I sometimes have to clear them twice to get the car settled down.
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      08-19-2015, 09:08 AM   #18
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I think you need to double check your ignition coils. Take them off and reinstall if necessary. You probably disturbed them during install somehow. Also check for wires and connections. See if you connected everything correctly. It could be lose wire (probably ground).
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      08-19-2015, 09:14 AM   #19
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Alright, I'll start today by doing all suggestions. You guys are great, thanks for the help so far! I will update with results.
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      08-19-2015, 11:38 AM   #20
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So, I smoke tested it, and got no visible leaks. Then I ran without the MAF, it ran even worse. Finally I cleaned the MAF with CRC MAF spray, and it's still hesitant. Just for kicks, I hooked up my battery charger and found out my charge is at only 10%!!! Could this be my issue?! I'm letting charge for now.

EDIT: Has anyone done the 3-stage swap and bumped into their coils or plugs, seems unlikely as I'm ridiculously careful and methodical. But I did notice a hole in the bottom of the air filter box right where it sits in the engine bay, is that supposed to be there?
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Last edited by Nordkeyz73; 08-19-2015 at 11:51 AM. Reason: More stuff noticed.
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      08-19-2015, 12:14 PM   #21
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Quote:
Originally Posted by Nordkeyz73 View Post
So, I smoke tested it, and got no visible leaks. Then I ran without the MAF, it ran even worse. Finally I cleaned the MAF with CRC MAF spray, and it's still hesitant. Just for kicks, I hooked up my battery charger and found out my charge is at only 10%!!! Could this be my issue?! I'm letting charge for now.

EDIT: Has anyone done the 3-stage swap and bumped into their coils or plugs, seems unlikely as I'm ridiculously careful and methodical. But I did notice a hole in the bottom of the air filter box right where it sits in the engine bay, is that supposed to be there?
What is your battery voltage at idle?
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      08-19-2015, 12:44 PM   #22
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Quote:
Originally Posted by Nordkeyz73 View Post
. But I did notice a hole in the bottom of the air filter box right where it sits in the engine bay, is that supposed to be there?
Yes it is. It's for

A bump stop or whatever it's called. It's just a piece of rubber that is on screws to the bottom where your filter sits and absorbs air filter vibrations. I lost of that rubber piece can result in very loud and booting noise inside of the cabin.
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