po121 after ported throttle body and manifold

supercatxr7 · Post by **supercatxr7** » Thu Sep 04, 2008 11:03 pm

I'm getting a po121 code after I had my throttle body ported. Anybody familar with this and can diablo fix the code through custom tuning?

Post by **06MonteSS** » Thu Sep 04, 2008 11:17 pm

A P0121 code is for the Throttle Position Sensor/Switch A Circ Range/Perf....

definitely does not sound like a tuning issue...

sounds like something's up with the throttle body / sensor after the work you had done to it...

supercatxr7 · Post by **supercatxr7** » Thu Sep 04, 2008 11:48 pm

Yes, but I was looking at other forums on LS1 tech and it is a common problem with ported t bodies on LS motors. Most were able to tune it out by adjusting the MinMAP to 0 and the MaxMap to 100. Maybe some of the tuners have experienced this or tuned it out?

Post by **mikel** » Fri Sep 05, 2008 8:59 am

Email me a copy of your current tune and we'll check it out.

Post by **06MonteSS** » Fri Sep 05, 2008 9:14 am

here's how to get your tune file outta your car Super... if ya don't remember from last time when I tweaked your tune.. heh..

http://diablosport.com/index.php?name=P ... pic&t=6547

supercatxr7 · Post by **supercatxr7** » Fri Sep 05, 2008 11:17 am

Yep, of course I remember! I just emailed the tune to both of you. Thanks!

Post by **mikel** » Fri Sep 05, 2008 11:22 am

Hey Lew, wanna take a crack at this one?

sickREDsierra · Post by **sickREDsierra** » Fri Sep 05, 2008 1:12 pm

the problem is clearly the Monte Carlo. it isnt meant to be a performance car.

JFWY

supercatxr7 · Post by **supercatxr7** » Fri Sep 05, 2008 1:23 pm

13.4's @ 104 with a few bolt ons, I don't think I'm doing too bad besides being wrong wheel drive!

supercatxr7 · Post by **supercatxr7** » Fri Sep 05, 2008 2:03 pm

Just an FYI, I put an unported throttle body back on it and it is fine. Seems porting the tbody requires additional tuning to account for the range of the tbody at idle and such. Let me know if you guys can do anything with the tune to compensate for this, as I would really like to use the ported tbody with my ported manifold.

thanks!

Post by **06MonteSS** » Fri Sep 05, 2008 2:36 pm

supercatxr7 wrote:Yep, of course I remember! I just emailed the tune to both of you. Thanks!

I didn't get your tune/email man...

[email protected]

sickREDsierra · Post by **sickREDsierra** » Fri Sep 05, 2008 2:59 pm

supercatxr7 wrote:13.4's @ 104 with a few bolt ons, I don't think I'm doing too bad besides being wrong wheel drive!

thats VERY good actually..

i only said that to mess with Lew. i know those cars are pretty quick.

Post by **06MonteSS** » Fri Sep 05, 2008 5:15 pm

mikel wrote:Hey Lew, wanna take a crack at this one?

Sure...

Supercatrx7 - you've got mail!!

Post by **06MonteSS** » Sat Sep 06, 2008 11:51 am

hey Super.. check out your ls1tech post...

http://ls1tech.com/forums/showthread.php?t=981171

supercatxr7 · Post by **supercatxr7** » Thu Sep 11, 2008 2:02 pm

Got the tune and loaded it, thanks. Code is gone, but shifting still isn't right. The shift points on light acceleration are still affected. Car pretty much starts out in first and shifts quickly to second and third on light acceleration from a stop. WOT is okay though.

po121 after ported throttle body and manifold

po121 after ported throttle body and manifold

RE: po121 after ported throttle body and manifold

RE: po121 after ported throttle body and manifold

RE: po121 after ported throttle body and manifold

RE: po121 after ported throttle body and manifold

RE: po121 after ported throttle body and manifold

RE: po121 after ported throttle body and manifold

RE: po121 after ported throttle body and manifold

RE: po121 after ported throttle body and manifold

RE: po121 after ported throttle body and manifold

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