stock turbo
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Freshman User
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stock turbo
I have an early 99 7.3l, I've done the 6637 mod, and cut off the cat and muffler.
Yesterday I replaced the battery in it and had the other one unhooked. Today when I drove it I stepped on it and the boost went up to over 30psi and the service engine soon light came on. I tired it out a couple more time and it kept happening, anybody else had this problem, am I putting my turbocharger in danger and should I even chip it?
Yesterday I replaced the battery in it and had the other one unhooked. Today when I drove it I stepped on it and the boost went up to over 30psi and the service engine soon light came on. I tired it out a couple more time and it kept happening, anybody else had this problem, am I putting my turbocharger in danger and should I even chip it?
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Joined: Jan 2007
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From: Millersburg, OR
Did you unhook the red line to your wastegate? The stock turbo doesn't last for long at more then 27 psi...
Do you have a boost fooler? That may be why your SES light is coming on.. I think any more then 24 psi or so it will set a SES light and defuel the motor...
Do you have a boost fooler? That may be why your SES light is coming on.. I think any more then 24 psi or so it will set a SES light and defuel the motor...
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Joined: Feb 2009
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Layson has it lined out for you. The only reason your check engine light is coming on is because the PCM is seeing an "overboost" condition. Because excess wear on your turbo it isn't hurting anything.
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thanks guy
no i inspected my turbo and the red line to my waste gate isn't unhooked. no I don't have it boostfooled but am planning on it in the future.
I'm really wondering why it's suddenly putting out so much boost. I thought that they only hit more than 20 psi once they were chipped.
no i inspected my turbo and the red line to my waste gate isn't unhooked. no I don't have it boostfooled but am planning on it in the future.
I'm really wondering why it's suddenly putting out so much boost. I thought that they only hit more than 20 psi once they were chipped.
