02 C5 Reduced engine power P1515
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02 C5 Reduced engine power P1515
Hello dears
I have 2002 C5 AT
I upgrade the engine from LS1 to L96 it 6.0 from GM
with VR air intake with kooks headers and X pipe with Borla kit back
and the TB for new engine connect it with Adapter Harness from summit racing
It performance is perfect
but i get a problem with Reduced engine power alarm and the power it be down
I replace the TB Adapter , and I change the TB 5 times by LS3 comaro TB & C6 corvette and check the TB wire
but still the problem with P1515 code
Is any expert have any idea to correct this issue please
Thank you
I have 2002 C5 AT
I upgrade the engine from LS1 to L96 it 6.0 from GM
with VR air intake with kooks headers and X pipe with Borla kit back
and the TB for new engine connect it with Adapter Harness from summit racing
It performance is perfect
but i get a problem with Reduced engine power alarm and the power it be down
I replace the TB Adapter , and I change the TB 5 times by LS3 comaro TB & C6 corvette and check the TB wire
but still the problem with P1515 code
Is any expert have any idea to correct this issue please
Thank you
Melting Slicks
Joined: Nov 2009
Posts: 2,922
Likes: 219
From: West Branch, MI
You still haven't answered the question. What throttle body? LS3 or LS2? There is a big difference in them on being used on a C5. Does it have a silver throttle blade or a gold throttle blade? If you're using the LS3, it will NOT work with the C5. You'll have to use the LS2. Also, did you change the reluctor gear when you swapped in this L96? They come with a 58 tooth gear and the C5 requires a 24 tooth reluctor. Sounds to me like you might have other issues than just the p1515. Since you're a new poster here and you didn't finish your profile, where do you live? Have you had a professional Corvette shop give you any assistance?
Last edited by CactusCat; Apr 29, 2017 at 09:11 AM.
Thread Starter
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Joined: Apr 2016
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You still haven't answered the question. What throttle body? LS3 or LS2? There is a big difference in them on being used on a C5. Does it have a silver throttle blade or a gold throttle blade? If you're using the LS3, it will NOT work with the C5. You'll have to use the LS2. Also, did you change the reluctor gear when you swapped in this L96? They come with a 58 tooth gear and the C5 requires a 24 tooth reluctor. Sounds to me like you might have other issues than just the p1515. Since you're a new poster here and you didn't finish your profile, where do you live? Have you had a professional Corvette shop give you any assistance?
Thank you dear for your Interesting
I think the throttle body for LS3
this throttles body I fix it to check
They fix the reluctor gear it for C5
I am an old follower to this site but I didn't register only from last year
Thank you again
Last edited by L T Z; May 1, 2017 at 01:10 AM.
Thread Starter
Navigator
Joined: Apr 2016
Posts: 9
Likes: 0
Thank you dear for your Interesting
I think the throttle body for LS3
this throttles body I fix it to check
They fix the reluctor gear it for C5
I am an old follower to this site but I didn't register only from last year
Thank you again
I think the throttle body for LS3
this throttles body I fix it to check
They fix the reluctor gear it for C5
I am an old follower to this site but I didn't register only from last year
Thank you again
Melting Slicks
Joined: Nov 2009
Posts: 2,922
Likes: 219
From: West Branch, MI
https://ls1tech.com/forums/generatio...t-work-c5.html
https://www.corvetteforum.com/forums...-a-04-pcm.html
https://www.corvetteforum.com/forums...he-ls3-tb.html
https://ls1tech.com/forums/generatio...-question.html
Read through some of these older threads. Hopefully it will help you find what you need.
https://www.corvetteforum.com/forums...-a-04-pcm.html
https://www.corvetteforum.com/forums...he-ls3-tb.html
https://ls1tech.com/forums/generatio...-question.html
Read through some of these older threads. Hopefully it will help you find what you need.
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Thread Starter
Navigator
Joined: Apr 2016
Posts: 9
Likes: 0
https://ls1tech.com/forums/generatio...t-work-c5.html
https://www.corvetteforum.com/forums...-a-04-pcm.html
https://www.corvetteforum.com/forums...he-ls3-tb.html
https://ls1tech.com/forums/generatio...-question.html
Read through some of these older threads. Hopefully it will help you find what you need.
https://www.corvetteforum.com/forums...-a-04-pcm.html
https://www.corvetteforum.com/forums...he-ls3-tb.html
https://ls1tech.com/forums/generatio...-question.html
Read through some of these older threads. Hopefully it will help you find what you need.
already dear I read it before I writing hear but I didn't found what the exactly solution
Thread Starter
Navigator
Joined: Apr 2016
Posts: 9
Likes: 0
Thank you all for replay and support
I solver the problem
I change The TB with 2007 corvette
The problem is TB for corvette 2005-2007 LS2 only it work with C5 it is 90mm
The LS3 92mm not work with corvette C5
That for your information
Thank you
I solver the problem
I change The TB with 2007 corvette
The problem is TB for corvette 2005-2007 LS2 only it work with C5 it is 90mm
The LS3 92mm not work with corvette C5
That for your information
Thank you