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Aug 18, 2008 | 09:23 AM

RT0802

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Joined: Jul 2007

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Upgrade headache

I recently upgraded the stock turbo on my 02 Excursion 7.3 to a Garrett GTP38R. The excursion runs great with the new turbo, however, I now have a check engine light (P1249 wastegate control valve performance) code! Has anyone run across this before? What exactly do I fix on a new turbo and wastegate? Any ideas/comments?????

Aug 18, 2008 | 11:02 AM

weekendwarriorfsw32

Master of Strokes

Joined: Mar 2007

Posts: 6,808

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From: CA

Hey welcome to FTE and try posting this down in the 7.3 Forum but my best guess is your over-boosting and you need a over boost analyzer because the the computer is seeing over 21 PSI. You can get one here
Overboost Annihilator

Aug 24, 2008 | 11:31 AM

RT0802

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Thanks weekendwarriorfsw32. I appreciate the info on the overboost annihilator. I have one on order and will keep my fingers crossed that it solves the problem. It would be nice if one could plug trucks computer into a laptop and change the parameters on your own! Thanks again

Aug 24, 2008 | 11:36 AM

deereman4020

Postmaster

Joined: May 2008

Posts: 3,099

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From: horicon Wi

i think an engine scanner from auto enginuity would do that im sure some one else would chime in.
heres the link. AutoEnginuity® - OBD2 Scan Tool - Professional PC and PDA Diagnostics

Aug 24, 2008 | 12:31 PM

papadelogan

Snowboard season cometh..

Joined: Jan 2006

Posts: 5,406

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From: Gulf Coast of Florida

I believe that tool will let you READ codes, parameters, etc. but as far as changing the boost# when an SES light would be triggered, you're out of luck. Still, a GREAT diagnostic tool!!