Need help with a problem (air leak?)
#16
05-24-2013, 06:03 AM
LOL, it's part of the game! To be totally honest the car has thrown these codes before shortly after I got it. I figured I had done the throttle adaptation wrong. I reset the computer and it drove (mostly) fine for 700+ miles. Then last night- bam! I reset it again and it's running fine (well, as fine as it has run since getting it).
That's interesting. I've talked to a few other EVT 775ers and they don't seem to have these issues.
Agreed. And I don't wait to point any fingers and I've got nothing negative to say about any tuner, but I'm wondering if - like you say - part of these issues are tune related.
That's what I'm doing- I finally found a semi-local place to take my car to and in a couple of weeks they'll go over everything with a fine tooth comb. I DO expect them to find a leak somewhere, but I don't expect that will be the end of all my issues. You never know though.
I think we must like the pain!
The tune I have is, as I understand it, adjusted to accommodate the IPD Plenum which is part of the EVOMS build.
I'm just hoping someone hops on here and goes "OH FREAK YEAH! That same stuff happened to me and it was the [magic cure goes here]." I should check my warp core. Something always goes wrong with those.
Cam
That's interesting. I've talked to a few other EVT 775ers and they don't seem to have these issues.
Agreed. And I don't wait to point any fingers and I've got nothing negative to say about any tuner, but I'm wondering if - like you say - part of these issues are tune related.
That's what I'm doing- I finally found a semi-local place to take my car to and in a couple of weeks they'll go over everything with a fine tooth comb. I DO expect them to find a leak somewhere, but I don't expect that will be the end of all my issues. You never know though.
I think we must like the pain!
The tune I have is, as I understand it, adjusted to accommodate the IPD Plenum which is part of the EVOMS build. I'm just hoping someone hops on here and goes "OH FREAK YEAH! That same stuff happened to me and it was the [magic cure goes here]." I should check my warp core. Something always goes wrong with those.
Cam
And for the record.....and let it be known my EVT775 had some pretty serious issues when I bought it...so I shipped it to EVOMS where they spent 5 weeks with it. Without going into details much of what was done had to be redone and like I said some of the things you speak of I have just chalked up as normal modified 997tt stuff. The new (and worse) issue you are having is obviously something new all together and Im really looking forward to your findings. Best luck Cam! I will absolutely let you know what I find as there is a slight chance I have a small vac leak as well. Im gonna FB msg my # so I can tell you the things I might look at based on what went on w my car. I
#17
05-24-2013, 07:51 PM
Join Date: Feb 2013
Location: SLC, UT
Posts: 152
Rep Power: 41 
The new (and worse) issue you are having is obviously something new all together
#18
05-27-2013, 02:34 PM
Try looking at the FPR. The fuel pressure regulator has two fittings...if either if those is lose or completely off, the car is going to act up. Hopefully that will be the issue. If you find thins is the case, disconnect the battery, clear the code and see if that fixes the problem. I have a feeling that is the issue...
#20
05-27-2013, 04:51 PM
Join Date: Feb 2013
Location: SLC, UT
Posts: 152
Rep Power: 41
Try looking at the FPR. The fuel pressure regulator has two fittings...if either if those is lose or completely off, the car is going to act up
First things first - I think I damaged my MAF sensors when I cleaned them (I used CRC MAF cleaner). They may have had a previous issue (having been possibly damaged by an oversaturated BMC filter). Here a fault from a Durametric tool:
I ordered some new sensors but they won't be here until next week. I'll take a look at the FPR then. In the meantime, after throwing another CEL (8 codes), the car's in storage- we're taking a little break from each other. I have an appointment with a reputable semi-local shop on June 11th. I think that's probably when this will actually start getting sorted out.
Last edited by UTPorsche; 05-27-2013 at 04:56 PM.
#22
06-14-2013, 06:06 PM
Join Date: Feb 2013
Location: SLC, UT
Posts: 152
Rep Power: 41
Okay, quick update. Not the FPR, but it was a good idea. New MAF sensors didn't help. And my many tears and prayers also failed to solve the problems.
The car finally got so bad that I had to take it somewhere. I dropped it off at a company called RaceCo (inside the Miller Motorsports Park in UT). They were recommended by EVOMS and so far they have been exceptional.
They found a leak in one of the intercoolers. It was big enough that they couldn't really even pressure test the system to look for other leaks. The hole - I guess a crack along one of the welds - was bad enough that they were not able to fix it. So, two new EVOMS Gen 2 intercoolers inbound. After they are installed the pressure testing will resume. The "good news" is it the kind of leak that could be the cause of all my problems. The bad news is that it was not discovered in the PPI (to be fair, maybe it wasn't there at that point) and I've been driving the car around possibly doing more damage (i.e. overtaxing the turbos).
More to come...
The car finally got so bad that I had to take it somewhere. I dropped it off at a company called RaceCo (inside the Miller Motorsports Park in UT). They were recommended by EVOMS and so far they have been exceptional.
They found a leak in one of the intercoolers. It was big enough that they couldn't really even pressure test the system to look for other leaks. The hole - I guess a crack along one of the welds - was bad enough that they were not able to fix it. So, two new EVOMS Gen 2 intercoolers inbound. After they are installed the pressure testing will resume. The "good news" is it the kind of leak that could be the cause of all my problems. The bad news is that it was not discovered in the PPI (to be fair, maybe it wasn't there at that point) and I've been driving the car around possibly doing more damage (i.e. overtaxing the turbos).
More to come...
#24
06-14-2013, 08:01 PM
Join Date: Feb 2013
Location: SLC, UT
Posts: 152
Rep Power: 41
I hope no... I'm sorry to hear all this mess... I hope they can fix it and you can finally enjoy your car!!!
I'm looking forward to seeing what it can actually do. With my leak and the fact that my sport button wasn't working (how did that get missed in the PPI? Come on...) I'm not even sure if I ever hit full boost. Sure was fun for the few weeks it was sort of working though!
#26
06-20-2013, 05:41 PM
Join Date: Feb 2013
Location: SLC, UT
Posts: 152
Rep Power: 41
Lol. Im testing for boost leaks myself as we speak. God I hope its not intercooler related!
RaceCo has my new intercoolers installed and they are hopeful. They have pressure checked everything and there aren't any more leaks. Idle is stable and long term fuel trims are staying at +1 so far. They still have more testing to do, but I think we're on the right track (pun totally intended).
No idea what's up w/ the sport button yet, but it's clearly not working. Having talked with other EVT 775 owners they have indicated that when the sport button is pressed boost pressure and throttle response rise (anyone who has an EVT anything is free to chime in here to let me know what their sport button does or does not do). Hopefully EVOMS can help RaceCo figure out if the button worked at some point and determine why the button isn't working now.
It would be cool to have my car work.
Quick edit for anyone wondering what my sport button does: Nothing. No light, no change, no nuthin'. I have never seen my boost gauge go past 15 PSI (1 bar).
Last edited by UTPorsche; 06-20-2013 at 06:18 PM.
#27
06-20-2013, 06:14 PM
"It would be cool to have my car work."
Cam,
You are getting close! The karma is with you!! Soon it will !!!
Just as an fyi, my air leak seems resolved (at least until it happens again). Color me pragmatic!
I did a couple of pulls in sport mode today with the bar boost display engaged. It went "arrow up" past 18 psi and held which would seem to be indicative of pulling 20+ lbs boost as Evoms indicated it would. I don't think the alternative numeric display goes above 17 psi which is the max I've ever seen on it. Also, my button lights up and there is a noticeable change in throttle mapping in addition to the boost. I was running a 50-50 mix of pump and 100 octane race gas so that needs to be factored in as well. (Question: Does your suspension button to the left of the sport button light up? It should in conjunction when you push the sport button or when you push it independently without sport.)
While at the track last weekend, I met Powderhound who has a Ruf Turbo and has a very functional electronic gauge package installed in his PCM module. The display can be switched between multiple parameters such as EGT's, oil temps, etc. I'll try to find out more about that. We were running with temps >100' on the grid and once my oil temps hit 240, I was done. As my wife reminds me, I had my mulligan two years ago when the turbo let loose so I'm rather sensitive about monitoring that stuff now.
See you at Miller in Sept I hope!
Cam,
You are getting close! The karma is with you!! Soon it will !!!
Just as an fyi, my air leak seems resolved (at least until it happens again). Color me pragmatic!
I did a couple of pulls in sport mode today with the bar boost display engaged. It went "arrow up" past 18 psi and held which would seem to be indicative of pulling 20+ lbs boost as Evoms indicated it would. I don't think the alternative numeric display goes above 17 psi which is the max I've ever seen on it. Also, my button lights up and there is a noticeable change in throttle mapping in addition to the boost. I was running a 50-50 mix of pump and 100 octane race gas so that needs to be factored in as well. (Question: Does your suspension button to the left of the sport button light up? It should in conjunction when you push the sport button or when you push it independently without sport.)
While at the track last weekend, I met Powderhound who has a Ruf Turbo and has a very functional electronic gauge package installed in his PCM module. The display can be switched between multiple parameters such as EGT's, oil temps, etc. I'll try to find out more about that. We were running with temps >100' on the grid and once my oil temps hit 240, I was done. As my wife reminds me, I had my mulligan two years ago when the turbo let loose so I'm rather sensitive about monitoring that stuff now.
See you at Miller in Sept I hope!
Last edited by Steamboat; 06-20-2013 at 06:24 PM.
#28
06-20-2013, 11:08 PM
Join Date: Feb 2013
Location: SLC, UT
Posts: 152
Rep Power: 41
You are getting close! The karma is with you!! Soon it will !!!
Just as an fyi, my air leak seems resolved (at least until it happens again). Color me pragmatic!
Question: Does your suspension button to the left of the sport button light up? It should in conjunction when you push the sport button or when you push it independently without sport.
While at the track last weekend, I met Powderhound who has a Ruf Turbo and has a very functional electronic gauge package installed in his PCM module. The display can be switched between multiple parameters such as EGT's, oil temps, etc. I'll try to find out more about that. We were running with temps >100' on the grid and once my oil temps hit 240, I was done. As my wife reminds me, I had my mulligan two years ago when the turbo let loose so I'm rather sensitive about monitoring that stuff now.
See you at Miller in Sept I hope!
Last edited by UTPorsche; 06-20-2013 at 11:10 PM.
#29
06-21-2013, 12:06 AM
Man Im soooooo glad to see you are getting your **** together. So effing frusteratiing. ATX Autosport should have my system smoke tested by midday tomorrow. Hoping for the best. Keep me in the loop!
#30
06-21-2013, 08:01 AM
"Fingers crossed. Seems like if you've got an EVT 775 then you've got an air leak. It's like part of the kit." It's "free" too!
"When I push the sport button nothing lights up. I do have aftermarket shocks (Bilstein Damptronics) - I don't know if that would affect anything. When I press the suspension button it lights up and the ride def. seem to get stiffer. At one point EVOMS told me the shocks weren't adjustable so I wouldn't have the suspension switching functionality. But it seems like I do.. "
I run Damptronics as well and it all works. Definitely a gremlin to be chased down...
"But I won't be in a 911" Do you have one of the winged Corvette's that kept going by me a year ago?? 
Those guys were quick!
It's "free" too!"When I push the sport button nothing lights up. I do have aftermarket shocks (Bilstein Damptronics) - I don't know if that would affect anything. When I press the suspension button it lights up and the ride def. seem to get stiffer. At one point EVOMS told me the shocks weren't adjustable so I wouldn't have the suspension switching functionality. But it seems like I do.. "
I run Damptronics as well and it all works. Definitely a gremlin to be chased down...
"But I won't be in a 911
" Do you have one of the winged Corvette's that kept going by me a year ago?? Those guys were quick!