 » Site Navigation | | | | » Recent Threads | | | |  |  |  |  08-15-2008, 03:43 AM | #1 | | Senior Member Join Date: Mar 2007 Location: Calgary/Edmonton, Alberta, Canada Posts: 379 |  HELP ASAP!!! DASC Problems
So I just installed my dasc today and everything seemed to be working fine except that I had a rough idle. Then i drove it for a while longer and the idle started to get really rough.....Soooo rough that my car actually stalled when I came to a stop. And it also seems to be making a putputput sound. With this sounds comes an uneven exhaust flow. And my cheak engine light is on aswell.
I've read a few other threads and what I gather is that I have a leak somewhere. My buddy and I are going to check for leaks in the morning using starter fluid, then we will be dissasembling it and putting gasket sealer on everything.
What could be causing my eneven exhaust flow? I think it could be from one of the flue injector o-rings but I'm not sure.
Please give me some advise asap because me car needs to be fully functional by saturday. __________________ http://i131.photobucket.com/albums/p...ignature-2.jpg
Current Mods: DASC, Depo 5000K Projector Headlights with 6000K Predator Chromiums, BavAuto Sport Springs, 17" Mille Miglia rims, 225/40 Falkens, 10" JL W3 Sub, Clarion APX1300 Amp, M3 Shifter (33% Less Throw), 8% Tint, M Lip, AC Schnitzer pedals, Carbon Gauge Bezel, Black Emblems, Clears All Around, Doubled up Break Lamps, Corner Light Delete, License Plate Delete.
Waiting to be installed: Bilstein Shocks/Struts with Heavy Duty Supports, Head Gasket and Spark Plug Seals, New ABS Sensors.
Future Plans: Smaller Dasc Pulley, NickG Stage 2, Supersprint Exhaust, Lower Temp. Spark Plugs, Heat Wrapped Hoses, Self Designed/Made Rear Spacers, Interior Swithches for Angel eyes and DRL's, Carbon Engine Panels, Custom Sub Box Located in Tool Kit, and anything else I come up with. |  |  | | 08-15-2008, 03:25 PM | #2 | | Senior Member Join Date: Mar 2007 Location: Calgary/Edmonton, Alberta, Canada Posts: 379 |
Bump __________________ http://i131.photobucket.com/albums/p...ignature-2.jpg
Current Mods: DASC, Depo 5000K Projector Headlights with 6000K Predator Chromiums, BavAuto Sport Springs, 17" Mille Miglia rims, 225/40 Falkens, 10" JL W3 Sub, Clarion APX1300 Amp, M3 Shifter (33% Less Throw), 8% Tint, M Lip, AC Schnitzer pedals, Carbon Gauge Bezel, Black Emblems, Clears All Around, Doubled up Break Lamps, Corner Light Delete, License Plate Delete.
Waiting to be installed: Bilstein Shocks/Struts with Heavy Duty Supports, Head Gasket and Spark Plug Seals, New ABS Sensors.
Future Plans: Smaller Dasc Pulley, NickG Stage 2, Supersprint Exhaust, Lower Temp. Spark Plugs, Heat Wrapped Hoses, Self Designed/Made Rear Spacers, Interior Swithches for Angel eyes and DRL's, Carbon Engine Panels, Custom Sub Box Located in Tool Kit, and anything else I come up with. | | | | | 08-15-2008, 06:45 PM | #3 | | Senior Member Join Date: Mar 2005 Location: NJ Posts: 1,625 |
What could be causing my eneven exhaust flow?
missfire!
check your fuel injectors as well... when I installed my DASC I never pluged back in one of the injectors & same thing happened - misfiring - rough idle - CEL. I was running on 3 cyls...
drove back to the garage, checked everything & found an unplugged injector.
also, the most obvious things are worth checking after a big job like that - cause lets face it, people miss ****... like plugs (motor & coil end) MAF connections - fuel delivery (lines / pressure regualator, etc.) - and off course vacum leaks (!) these are most common..
just park the car - grab yourself a beer - chill out for sec., & then go over absolutely everything you can see & all things which have been disconected and or changed during installation. __________________ 
SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!
Metric Mechanic's 2.0 stroker/258' intake cam/42 lb. inj./remap/HD fuel pump
/DASC w.3' pulley @ 15psi/SNOW System/3.45 LSD/Billstein PSS coils
/Stromung Exhaust/DS1's/X-Brace/Front & Rear H&R Sways/OMP 300mm SW
/SAP delete/ASC+T delete/Hayabusa valve springs/MM's LTW flywheel | | | | | 08-15-2008, 06:48 PM | #4 | | Senior Member Join Date: May 2006 Location: 43609 Posts: 3,425 |
One thing i can say is...check the check engine light code, it could very well tell you exactly where to look. __________________ 1995 Hellrot Clubsport 318ti -Gone 1996 Schwartz II Sport 357ti - 5.7L V8 LS1/6 1997 Moregrun Metallic 318ti - Gone
1998 Schwartz II sport 318ti - M50TUB25/5 | | | | | 08-16-2008, 12:23 AM | #5 | | Senior Member Join Date: Mar 2007 Location: Calgary/Edmonton, Alberta, Canada Posts: 379 |
Thanks, guys.
Marko, you called it!! I started to tear everything apart and when I finally got to the fuel rail I noticed that the #4 cylinder fule injector plug wasn't connected. So i plugged the b*tch in and she's purring like a kitten.
I have a concern though. I never really noticed the heat comming fom my engine before. The temperature seems to rize quite quick but the temp. never goes above the normal running temp. I installed a new thermostat at the same time of the dasc install so it should be working perfectly. Maybee I am just super paranoid and in tune with my car now that I have worked on it myself.
Although my super is running really smooth, it sometimes will drop down in rpms when i come to a stop. It is a slight drop but it also did that before the install, just not as noticeably. Any way to fix this without totally tearing everything appart? __________________ http://i131.photobucket.com/albums/p...ignature-2.jpg
Current Mods: DASC, Depo 5000K Projector Headlights with 6000K Predator Chromiums, BavAuto Sport Springs, 17" Mille Miglia rims, 225/40 Falkens, 10" JL W3 Sub, Clarion APX1300 Amp, M3 Shifter (33% Less Throw), 8% Tint, M Lip, AC Schnitzer pedals, Carbon Gauge Bezel, Black Emblems, Clears All Around, Doubled up Break Lamps, Corner Light Delete, License Plate Delete.
Waiting to be installed: Bilstein Shocks/Struts with Heavy Duty Supports, Head Gasket and Spark Plug Seals, New ABS Sensors.
Future Plans: Smaller Dasc Pulley, NickG Stage 2, Supersprint Exhaust, Lower Temp. Spark Plugs, Heat Wrapped Hoses, Self Designed/Made Rear Spacers, Interior Swithches for Angel eyes and DRL's, Carbon Engine Panels, Custom Sub Box Located in Tool Kit, and anything else I come up with. | | | | | 08-16-2008, 10:58 PM | #6 | | Member Join Date: Apr 2008 Location: England, Newcastle Posts: 63 |
do you have any type of write up of your install and a list of the items you put in along with the actual DASC Supercharger, As im going to be doing a supercharger install soon could use a good DIY guide....
Also have you installed any gauges to monitor the DASC and oil temperature etc... | | | | | 08-18-2008, 12:10 PM | #7 | | Senior Member Join Date: Mar 2005 Location: NJ Posts: 1,625 |
yep, same here - last one in line - # 4. glad it worked out. DASC will not make your car run any hotter or cooler than before (at least I didn't notice anything).. if your car reached dead center & it stays there, you should be fine. The most important thing to do when changing coolant is to make sure to 'burp' the system. I, personally, had a really hard time doing this - got it wrong 2 times in a row, before I finally just took it to a local euro car shop 2 have it done properly. It only cost me a few bucks for labor (I gave them bmw coolant) & and it was worth it, if for nothing else but a peace of mind. These cars are famous for being difficult to burp (get rid of the air pockets). There is a write up on how to do it on this site somewhere... The needle droping (surging) is relatively normal - in fact, so much so that Nick G from Technique Tunning offers a remedy in all of his DASC tunning remap stages. I get the same glitch some times... Quote: Originally Posted by jgrimm  Thanks, guys.
Marko, you called it!! I started to tear everything apart and when I finally got to the fuel rail I noticed that the #4 cylinder fule injector plug wasn't connected. So i plugged the b*tch in and she's purring like a kitten.
I have a concern though. I never really noticed the heat comming fom my engine before. The temperature seems to rize quite quick but the temp. never goes above the normal running temp. I installed a new thermostat at the same time of the dasc install so it should be working perfectly. Maybee I am just super paranoid and in tune with my car now that I have worked on it myself.
Although my super is running really smooth, it sometimes will drop down in rpms when i come to a stop. It is a slight drop but it also did that before the install, just not as noticeably. Any way to fix this without totally tearing everything appart? | __________________
SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!
Metric Mechanic's 2.0 stroker/258' intake cam/42 lb. inj./remap/HD fuel pump
/DASC w.3' pulley @ 15psi/SNOW System/3.45 LSD/Billstein PSS coils
/Stromung Exhaust/DS1's/X-Brace/Front & Rear H&R Sways/OMP 300mm SW
/SAP delete/ASC+T delete/Hayabusa valve springs/MM's LTW flywheel | | | | | 08-18-2008, 12:11 PM | #8 | | Senior Member Join Date: Mar 2005 Location: NJ Posts: 1,625 |
DASC comes with an instruction manual + there is an actual PDF file scan of teh installation manual on this site, somwhere... good luck. Quote: Originally Posted by Corporate DGNR8 do you have any type of write up of your install and a list of the items you put in along with the actual DASC Supercharger, As im going to be doing a supercharger install soon could use a good DIY guide....
Also have you installed any gauges to monitor the DASC and oil temperature etc... | __________________
SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!SOLD!
Metric Mechanic's 2.0 stroker/258' intake cam/42 lb. inj./remap/HD fuel pump
/DASC w.3' pulley @ 15psi/SNOW System/3.45 LSD/Billstein PSS coils
/Stromung Exhaust/DS1's/X-Brace/Front & Rear H&R Sways/OMP 300mm SW
/SAP delete/ASC+T delete/Hayabusa valve springs/MM's LTW flywheel | | | | | 08-18-2008, 06:13 PM | #9 | | Member Join Date: Apr 2008 Location: England, Newcastle Posts: 63 |
Thanks ill try looking it up - im going to be using a Copper S, supercharger for a custom build...
Most likely the start of next year now, as im giving the car a new skin first, its just for a rough guide... | | | | |
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