Need a good mechanic in Atlanta
- Thread starter kernie
- Start date
First problem is P0507 (High Idle) - LS3 376/480
Car idles about 900 RPM
Stalls coming off power (like an exit ramp)
Fuel economy is terrible - fuel smell is present but no leak detected
If I wiggle the MAF connector (in air intake) I can make it stall
No obvious vacuum leak
Changed out MAF and wiring - eliminated surge when wiggled but not code
LS3 has minimum vacuum lines - all checked and no leaks detected
Think it's probably the intake manifold -
If that's the case I'd rather have somebody torque it properly
Second is AC needs a charge and leak fixed
Car idles about 900 RPM
Stalls coming off power (like an exit ramp)
Fuel economy is terrible - fuel smell is present but no leak detected
If I wiggle the MAF connector (in air intake) I can make it stall
No obvious vacuum leak
Changed out MAF and wiring - eliminated surge when wiggled but not code
LS3 has minimum vacuum lines - all checked and no leaks detected
Think it's probably the intake manifold -
If that's the case I'd rather have somebody torque it properly
Second is AC needs a charge and leak fixed
Fran Hall RCR
GT40s Sponsor
Contact [email protected] 770-654-3181 he is in Buford...
He can also go over the car and supply peace of mind ...you will love his other race cars at the shop.
He can also go over the car and supply peace of mind ...you will love his other race cars at the shop.
I would definately recommend getting it tuned - I used the crate GMPP ecu and it was okay to get the car to start but that's about it - it would constantly stall, it would pull 15* of timing for no reason, ran like ass, definately running rich (sounds a lot like your issues).
Regarding maf, you need to make sure it's in a straight 4'' section of intake piping, I think about a foot or so away from the throttle body. You also want to make sure the throttle body is attached to the intake manifold and not remote from it - having it far away can really fvck with things.
tightening intake manifold is easy
Torque on the manifold Bolts - LS1TECH
it's 89INCH-lbs as spec and all of the bolts have perfect access because it's not an f-body/etc...
post on corvette forum - I'm sure there's a bajillion shops that do work on LS engines and dyno tune them in the Atlanta area.
Regarding maf, you need to make sure it's in a straight 4'' section of intake piping, I think about a foot or so away from the throttle body. You also want to make sure the throttle body is attached to the intake manifold and not remote from it - having it far away can really fvck with things.
tightening intake manifold is easy
Torque on the manifold Bolts - LS1TECH
it's 89INCH-lbs as spec and all of the bolts have perfect access because it's not an f-body/etc...
post on corvette forum - I'm sure there's a bajillion shops that do work on LS engines and dyno tune them in the Atlanta area.
Kernie,
There is an organization in/around Buford that used to display at a few of the car meets that builds ignition systems for any engine. Last time I saw them at a show they had an LS setup. They had running displays at the meets. Had a card at one time but can't seem to find it now. I think if you ask around some of the hot rod shops they would be able to help you out. Just Googled ignition Ga. and came up with this:
https://www.youtube.com/watch?v=Q7brPiTepOs
Here is another source:
REVO Technik
Buford, GA
1 770 271 4726
Revo Technik high performance ECU tuning files release the full potential of your car, with software that is fully adjustable to suit individual driving styles and the car’s modifications
Hope this helps
Bill
There is an organization in/around Buford that used to display at a few of the car meets that builds ignition systems for any engine. Last time I saw them at a show they had an LS setup. They had running displays at the meets. Had a card at one time but can't seem to find it now. I think if you ask around some of the hot rod shops they would be able to help you out. Just Googled ignition Ga. and came up with this:
https://www.youtube.com/watch?v=Q7brPiTepOs
Here is another source:
REVO Technik
Buford, GA
1 770 271 4726
Revo Technik high performance ECU tuning files release the full potential of your car, with software that is fully adjustable to suit individual driving styles and the car’s modifications
Hope this helps
Bill
I second Fran's recomendation of H Craft. "H" was team manager for the Robertson Racing Ford GTs during their ALMS days, and still supports the same cars in vintage racing now. He knows his way around a race car.
He also built the Superlite LeMans that was at the recent Autofair show.
He also built the Superlite LeMans that was at the recent Autofair show.
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