LS376/480 Help
Thread Starter
Instructor
Joined: Mar 2009
Posts: 135
Likes: 0
From: St. Louis MO
LS376/480 Help
I am using a new crate LS376/480 in my GTM and need a little help. The car starts right up and idles fine. There is a slight hesitation when pressing the accelerator and if I rev it to about 3000rpm and let off, it will die. I have a OBDII code reader but when I connect it, it tells me there is a link error. As far as I can tell, everything is connected. The engine came with the pedal and ECU so it should all be compatable. Any help would be greatly appreciated.
Mike
Mike
Team Owner
Joined: Nov 2006
Posts: 21,136
Likes: 212
From: Long Island New York
Wish I could help you Mike but I dont know. Im sure someone here can give you some tips.
I am curious your engine choice though. Saw it in the GM catalog and thought they looked like a good option. Can you give us some thoughts on it after you get it up and running strong? Thanks. Good luck sorting it out.
I am curious your engine choice though. Saw it in the GM catalog and thought they looked like a good option. Can you give us some thoughts on it after you get it up and running strong? Thanks. Good luck sorting it out.
Safety Car
Joined: Jun 1999
Posts: 3,570
Likes: 3
From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas
Don't know what you have and how your are tuning and what's the set up.
You may be better off going to the HP Tuners website.
You may be better off going to the HP Tuners website.
Thread Starter
Instructor
Joined: Mar 2009
Posts: 135
Likes: 0
From: St. Louis MO
Designed by Factory Five Racing using a C5 as a donor. Donor parts include upper and lower control arms, brakes, fuel tanks, steering column, radiator and fans, window regulators and motors, mirrors and door handles, wiper motor, a/c compressor and some other small stuff. It's mid-engine using a Porsche transaxle. It is almost 6 inches shorter than a Vette and weighs 2400 lbs.
Last edited by GTM4ME; Jun 11, 2010 at 10:13 AM.
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Where is the MAF sensor mounted? I am willing to bet that the reason you are having an issue is because the design of that air intake system is causing a MAF signal disturbance at that RPM. Any flow measurement device needs X amount of down and up stream straight run to provide a decent laminar flow to the device.
Thread Starter
Instructor
Joined: Mar 2009
Posts: 135
Likes: 0
From: St. Louis MO
Thanks for the suggestion!!
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Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Ahh, ok if you are only running one side, then that should work fine, as long as you have good straight run after and before the sensor.
