Replaced IPD plenum w IPD Competition/82mm throttle body
#17
Any resolution
I've tried two different throttle bodies, reconnecting hoses, checking vacuum lines and everything else I can think of. My issue is the car will start and shut down within seconds or it will run and misfire. The only code thrown so far that pops up every time is maf below limit. Tried cleaning it and removing it and still the same results every time. Has anyone else had this issue at all?
#18
I've installed and uninstalled these many times. Take off the TB and run your hand inside of the plenum and feel where it mates to the rubber sleeve. It is very easy to have the rubber sleeve not set causing an air leak and a poor running engine. The rest of the stuff is in plain sight and easy to confirm its connected properly.
#19
I've installed and uninstalled these many times. Take off the TB and run your hand inside of the plenum and feel where it mates to the rubber sleeve. It is very easy to have the rubber sleeve not set causing an air leak and a poor running engine. The rest of the stuff is in plain sight and easy to confirm its connected properly.
#20
I've installed and uninstalled these many times. Take off the TB and run your hand inside of the plenum and feel where it mates to the rubber sleeve. It is very easy to have the rubber sleeve not set causing an air leak and a poor running engine. The rest of the stuff is in plain sight and easy to confirm its connected properly.
The void was equvalant to the size of a standard sized flat screwdriver tip. I mixed some epoxy tonight, spread it evenly on both sides of the intake tube and I'll give it 24hrs to cure before I complete the reinstall. I'll come back in a couple of days to report if all is better. For me it would mean no more MAF CELs or hesitation at engine idle.
#21
Not perfect but making progress.
I haven't given up yet. I want to like this mod, and I have been verifying and correcting everything I possibly could.
MAF CODE P1095 was my first issue the very next day after doing the mod. I was told to check for vacuum leaks so I took everything back out and upon doing the reinstall I noticed the leak at the top end ( bottom side) of my Fabspeed intake tube, I repaired it but continued to have MAF code come up. Even after resets of the TB and ECU. I decided to try a new Bosch maf and guess what, after the 1st start up with the new Maf, CEL comes on again (P1095).
I troubleshot further, continued to listen for leaks by moving hoses around and I could hear a faint hiss coming from the O-ring at the end of the quick connect hose attached to the side of the plenum. That hose is rigid but under its own weight tends to slope a bit and allow the O-ring to leak ever so slightly. I could have simply zip tied it to other hoses but I decided to swap out the O-ring for one I just happened to have in my garage. The new o-ring was a "God send", It took some force to seat and clip to the machined end of the plenum but it was exactly what I needed, no more hiss and the tube no longer sags under its weight. I have started the car multiple times since and so far, no CEL. The thing now is that at start up, the car sounds right, but after 45 seconds it would fluctuate a bit and I would have to help stabilize the rpm's by applying slightly on the gas for about another 30 seconds, but the good thing is, I think the new MAF is definitely helping in keeping the CEL from coming on. Fixing the leaks of course too, but the new MAF has my car running much smoother with this mod. With my dying MAF car was acting strange. Now no more flat spots getting up to speed. Now I'm just hoping the ECU continues to learn. I'm ready to pick up the phone and call IDP but sure I'm not going to get anyone because of the holiday.
I'm wondering if others have experienced the initial idle chasing mostly after cold starts at first with this mod, and did your stock ECU end up adapting to specific behavior I mention now, or did a specific tune correct it for you? I'm curious.
BTW I've been driving it pretty hard, doing some hard pulls as recommended to help adaptation, but just concerned about the stuttering messing up my car. I definitely don't want to continue letting that happen at the start of every day I drive it. It doesn't sound and feel healthy for the car.
MAF CODE P1095 was my first issue the very next day after doing the mod. I was told to check for vacuum leaks so I took everything back out and upon doing the reinstall I noticed the leak at the top end ( bottom side) of my Fabspeed intake tube, I repaired it but continued to have MAF code come up. Even after resets of the TB and ECU. I decided to try a new Bosch maf and guess what, after the 1st start up with the new Maf, CEL comes on again (P1095).
I troubleshot further, continued to listen for leaks by moving hoses around and I could hear a faint hiss coming from the O-ring at the end of the quick connect hose attached to the side of the plenum. That hose is rigid but under its own weight tends to slope a bit and allow the O-ring to leak ever so slightly. I could have simply zip tied it to other hoses but I decided to swap out the O-ring for one I just happened to have in my garage. The new o-ring was a "God send", It took some force to seat and clip to the machined end of the plenum but it was exactly what I needed, no more hiss and the tube no longer sags under its weight. I have started the car multiple times since and so far, no CEL. The thing now is that at start up, the car sounds right, but after 45 seconds it would fluctuate a bit and I would have to help stabilize the rpm's by applying slightly on the gas for about another 30 seconds, but the good thing is, I think the new MAF is definitely helping in keeping the CEL from coming on. Fixing the leaks of course too, but the new MAF has my car running much smoother with this mod. With my dying MAF car was acting strange. Now no more flat spots getting up to speed. Now I'm just hoping the ECU continues to learn. I'm ready to pick up the phone and call IDP but sure I'm not going to get anyone because of the holiday.
I'm wondering if others have experienced the initial idle chasing mostly after cold starts at first with this mod, and did your stock ECU end up adapting to specific behavior I mention now, or did a specific tune correct it for you? I'm curious.
BTW I've been driving it pretty hard, doing some hard pulls as recommended to help adaptation, but just concerned about the stuttering messing up my car. I definitely don't want to continue letting that happen at the start of every day I drive it. It doesn't sound and feel healthy for the car.
#22
Problem continues
I'm still having the same exact issue. Car doesn't seem to want to adapt. Not sure why anymore. Upon every cold start the car missfires to the point of almost stalling and only after another minute does she stabilize and run smooth. I'm gonna go back to my stock setup to have to figure this one out. Seems like everyone else just had the car "learn" and adapt.
#23
Remembering back to the original post I have to say that any adjustment was smooth and the motor ran good from the get go. Something that wrong has not to do with adaptation imo. I'd be concerned about air leaks as has been stated.
#24
Mine worked fine from the first install. Putting it all in is done by feel in the back where you can't see anything. My fingers came out bloody though. I got used to tight spaces from working on motorbikes over 20+ years.
#25
Just got my 997.1 S back on the road. Did a Aasco flywheel, Quaife LSD, GT3 TB, Comp plenum and Evoms intake. I drove the car for about 5 miles and still may need some more driving but I did get a MAF code P1095 and P2087,P2089 (lean codes both banks at idle). I was told no tuning would be needed and the ECU should adapt. I cleared codes and will drive it again tonight. If I get the lean codes again I suspect I am getting unmetered air in. Hoping for the best.
#26
Just got my 997.1 S back on the road. Did a Aasco flywheel, Quaife LSD, GT3 TB, Comp plenum and Evoms intake. I drove the car for about 5 miles and still may need some more driving but I did get a MAF code P1095 and P2087,P2089 (lean codes both banks at idle). I was told no tuning would be needed and the ECU should adapt. I cleared codes and will drive it again tonight. If I get the lean codes again I suspect I am getting unmetered air in. Hoping for the best.
#27
Yes I agree. My battery was totally dead so its on the charger now and codes are cleared. Checked again for air leaks with spraying some brake cleaner around the connections and got no fluctuation in the idle. I also installed Billy Boat Headers. Its amazing how good the throttle response is. Also put in some PTX gear oil and no more hard 1st and 2nd gear engagements. Looking forward to getting it back on the road.
#28
To fabspeed, why didn't you guys ever incorporate an air straightener in your tube to begin with? Seems like it's a requirement when running a competition plenum and gt3 throttle body. Oh well..., hope this post helps others.
#29
2006 Carrera S Cab.
I installed the Fabspeed Air Intake and GT3 TB and Plenum. Had no issues from the start and has worked flawlessly ever since.
Also installed the Fabspeed Mufflers, Cat Bypass Pipes and ECU Tune since then with no issues.
No Check engine lights or codes and car runs perfectly.
Had the TB and Plenum installed by Local Porsche Dealer and replaced the rubber boots to the Plenum at the same time as they had problems with the ones on previous vehicles not sealing when changing the TB.
It is hard to say whether I notice a difference in power but sure sounds nice.
Would I do it again, not sure may be just the Mufflers and Air Intake as that alone made the car sound really good.
I installed the Fabspeed Air Intake and GT3 TB and Plenum. Had no issues from the start and has worked flawlessly ever since.
Also installed the Fabspeed Mufflers, Cat Bypass Pipes and ECU Tune since then with no issues.
No Check engine lights or codes and car runs perfectly.
Had the TB and Plenum installed by Local Porsche Dealer and replaced the rubber boots to the Plenum at the same time as they had problems with the ones on previous vehicles not sealing when changing the TB.
It is hard to say whether I notice a difference in power but sure sounds nice.
Would I do it again, not sure may be just the Mufflers and Air Intake as that alone made the car sound really good.