LS swap starts and dies not VATS
08-07-2017, 03:38 PM
#1
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LS swap starts and dies not VATS I am having problems with an ls swapped chevelle that I cannot figure out.
The car starts right off but dies a few seconds later, Fuel pressure from the pumps is good. I logged injector duty % and it drops to 0 or so after a couple seconds. seems as tho the computer is shutting the fuel off.
My first thought was VATS so I went into the tune and changed them to "none"
I am still having no luck tracking down the problem.
The car started off by starting and idling roughly, which is understood it was just a base tune from a 04 GTO with similar specs.
The computer is out of a 2004 express van originally. The harness has been cleaned up as well. checked the grounds and everything seems good.
The oddest thing is at one point the car did go back to running and idling after a new sender for the temp sensor but only when it was not threaded into the head. after threading the new sensor in the head it went back to stalling after 3 seconds.
after unplugging and plugging back in it started and ran again. was even able to drive it down the driveway.
Shut the car down and tried to restart and bang. again would die after 3 seconds.
New crank position sensor and cam position sensor as well.
Does anyone have an idea of what the next move is??
I thought it could be something in the tune but ive tried quite a few with no luck.
What else could be shutting this thing down like that?
any help would be greatly appreciated. thank you
Attached is a log maybe that helps
The car starts right off but dies a few seconds later, Fuel pressure from the pumps is good. I logged injector duty % and it drops to 0 or so after a couple seconds. seems as tho the computer is shutting the fuel off.
My first thought was VATS so I went into the tune and changed them to "none"
I am still having no luck tracking down the problem.
The car started off by starting and idling roughly, which is understood it was just a base tune from a 04 GTO with similar specs.
The computer is out of a 2004 express van originally. The harness has been cleaned up as well. checked the grounds and everything seems good.
The oddest thing is at one point the car did go back to running and idling after a new sender for the temp sensor but only when it was not threaded into the head. after threading the new sensor in the head it went back to stalling after 3 seconds.
after unplugging and plugging back in it started and ran again. was even able to drive it down the driveway.
Shut the car down and tried to restart and bang. again would die after 3 seconds.
New crank position sensor and cam position sensor as well.
Does anyone have an idea of what the next move is??
I thought it could be something in the tune but ive tried quite a few with no luck.
What else could be shutting this thing down like that?
any help would be greatly appreciated. thank you
Attached is a log maybe that helps
10-19-2017, 08:08 PM
#5
Launching!
It sounds like it could be the Oil-Pressure kill switch? Maybe?
-Kyle
-Kyle