Frustrated! SAI DIY - dead end??
11-18-2011, 12:38 PM
#31
do all 3 ports on each side need to be cleared?
since the airflow from all 3 ports meet up before the o2 sensors for the test maybe just having 2 ports on each bank cleared will allow enough airflow to meet the test.
if rerouting the plumbing directly to the cats pre sensor works it might be that just having 1 port on each bank clear allows enough air to meet the test as long as the check valve is in working order.
since the airflow from all 3 ports meet up before the o2 sensors for the test maybe just having 2 ports on each bank cleared will allow enough airflow to meet the test.
if rerouting the plumbing directly to the cats pre sensor works it might be that just having 1 port on each bank clear allows enough air to meet the test as long as the check valve is in working order.
11-18-2011, 03:14 PM
#33
Rennlist Member
I ended up able to clear 2 ports on one side and only one on the other. So far (knock on wood) I've put on about 8K miles and no CEL. I tried every kind of wire, cable and even my hammer drill, but could not get all three ports. I'm also on Larry's 2nd list for the magic box as I WILL NOT under any circumstances attempt that under the car on a creeper ream job again. So to answer K722070's question, apparently you do NOT need all 6, at least I didn't.
11-18-2011, 03:47 PM
#34
Race Director
I ended up able to clear 2 ports on one side and only one on the other. So far (knock on wood) I've put on about 8K miles and no CEL. I tried every kind of wire, cable and even my hammer drill, but could not get all three ports. I'm also on Larry's 2nd list for the magic box as I WILL NOT under any circumstances attempt that under the car on a creeper ream job again. So to answer K722070's question, apparently you do NOT need all 6, at least I didn't.
11-19-2011, 09:30 AM
#35
Rennlist Member
Nothing but Brad Penn 20w50 for 3 years now.
11-25-2011, 11:08 PM
#36
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It is official - given up...
After having tried everything I could try (all sorts of cables, sheaths, solvents, pushing air, casting spells, cursing (a lot)), I tossed in the towel. One of the SAIs was just plugged solid, and I spent most of the time on it.
On the bright side, now I have 8 new gaskets and a new air check valve in my cab. And, I can now drop and put up heat exchangers in a reasonable time. Same with the airbox.
And, at least, I can say that I have tried.
I cannot believe how tight the access is to some spots - I think Porsche did it deliberately to discourage DIYers.
Now I am left with some one-off tools - filed-off crow-foot wrench, quick-disconnect welded to the bottom of the old check valve, six cans of carb cleaner, a gallon of paint thinner, pipe-bomb-looking contraption that I fashioned to see if I could push a larger slug of solvent down the line (couldn't), and some other miscellanea.
Kudos to those who traveled down this path before me (I used a number of write ups here and elsewhere). And thanks for everyone who encouraged me.
Next thing - the "electronic route". Ultimately, cheaper and less frustrating. Either that, or a piece of electric tape over the CEL.
On the bright side, now I have 8 new gaskets and a new air check valve in my cab. And, I can now drop and put up heat exchangers in a reasonable time. Same with the airbox.
And, at least, I can say that I have tried.
I cannot believe how tight the access is to some spots - I think Porsche did it deliberately to discourage DIYers.
Now I am left with some one-off tools - filed-off crow-foot wrench, quick-disconnect welded to the bottom of the old check valve, six cans of carb cleaner, a gallon of paint thinner, pipe-bomb-looking contraption that I fashioned to see if I could push a larger slug of solvent down the line (couldn't), and some other miscellanea.
Kudos to those who traveled down this path before me (I used a number of write ups here and elsewhere). And thanks for everyone who encouraged me.
Next thing - the "electronic route". Ultimately, cheaper and less frustrating. Either that, or a piece of electric tape over the CEL.
11-26-2011, 04:12 PM
#37
Race Director
Sorry to hear M. I would think that with 5 of 6 ports clear that the SAI check engine light would not light. Just speculation on my part though. Good luck with it though.
