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2006 Si stumbles and turns off after returning back to stock

Posted: Fri Apr 05, 2013 10:00 am
by bossman
I am in th process of selling my Flashpro and after returning the calibration to stock the car won't stay idling. Help. I have an intake,J35 TB,RRC IM,header and exhaust,I'm thinking this should'nt cause problems with the stock ECU.

Re: 2006 Si stumbles and turns off after returning back to s

Posted: Fri Apr 05, 2013 10:06 am
by Spunkster
Try putting the stock TB and manifold back and see if that resolves the problem.

Re: 2006 Si stumbles and turns off after returning back to s

Posted: Fri Apr 05, 2013 10:12 am
by bossman
Spunkster wrote:Try putting the stock TB and manifold back and see if that resolves the problem.
unfortunately I sold the stock manifold. Would not having an IACV port make it do that?

Re: 2006 Si stumbles and turns off after returning back to s

Posted: Fri Apr 05, 2013 10:49 am
by Spunkster
IF you are returning it to stock you should completely return it to stock, or keep the FlashPro.

Re: 2006 Si stumbles and turns off after returning back to s

Posted: Fri Apr 12, 2013 11:46 am
by bossman
*update*

Car starts and runs fine on MAP based tunes but has the same issue with MAF based tunes as it does with the stock tune. What could be the cause of this?

Re: 2006 Si stumbles and turns off after returning back to s

Posted: Fri Apr 12, 2013 3:32 pm
by Hondata
The intake is modifying the flow past the AFM so much that the car will not run correctly. We've seen 40% or more different from stock. Solution is to run MAP based or put everything back to stock.

Re: 2006 Si stumbles and turns off after returning back to s

Posted: Fri Apr 12, 2013 6:37 pm
by bossman
Hondata wrote:The intake is modifying the flow past the AFM so much that the car will not run correctly. We've seen 40% or more different from stock. Solution is to run MAP based or put everything back to stock.
ok,but I was running an intake AND header on the stock program with no trouble and now it does'nt even wanna hold an idle. I'm thinking it's a bad maf sensor.

Re: 2006 Si stumbles and turns off after returning back to s

Posted: Mon Apr 15, 2013 6:35 am
by bossman
OK Hondata and fellow forum members, I found the problem to be that the intake pipe was actually backwards(and as such the air was moving through the MAF backwards aswell). At some point I must have turned the pipe around and switched ends the filter went on to better route it for cooler air and since I was already FP tuned the car never suffered from it. The car idles fine now. File this one away for dumb things that can make a big difference.

Re: 2006 Si stumbles and turns off after returning back to s

Posted: Mon Apr 15, 2013 11:01 am
by Hondata
Glad you got it sorted out; thanks for posting the resolution.