LS1 S14 Wont start
09-04-2011, 11:45 PM
#21
Sorry, I didn't see this question.
The BCM is a module with several functions. Regarding VATS...your ignition key is 'coded' with a resistance value. When you turn the key, that specific resistance is recognized, and as a result, the BCM puts out a specific frequency (a VATS bypass module will do the same) to the ECM, which enables your fuel pump. The BCM resides in the passenger side kick panel.
I've described VATS as it applies to my own 98 engine. VATS can work differently on later years, but the principle is the same.
The BCM is a module with several functions. Regarding VATS...your ignition key is 'coded' with a resistance value. When you turn the key, that specific resistance is recognized, and as a result, the BCM puts out a specific frequency (a VATS bypass module will do the same) to the ECM, which enables your fuel pump. The BCM resides in the passenger side kick panel.
I've described VATS as it applies to my own 98 engine. VATS can work differently on later years, but the principle is the same.
09-06-2011, 05:37 PM
#22
Staging Lane
Thread Starter
iTrader: (3)
Join Date: Mar 2010
Posts: 79
Likes: 0
Received 0 Likes
on
0 Posts
I'm going to finish up all of the other non motor related stuff and then take it to my tuner and get him to wipe VATS and all of the unnecessary stuff from the PCM, and hopefully that will fix it.
09-07-2011, 04:09 PM
#24
Staging Lane
Join Date: Dec 2005
Location: Portland, Oregon
Posts: 86
Likes: 0
Received 0 Likes
on
0 Posts
nope, only a few sensors that will keep it from running - crank angle is the one that comes to mind. it will HATE starting if you have your coolant temp sensor unplugged
it should fire and run with none of the o2 sensors.
if you haven't deleted the VATS or bypassed it it's the likely issue
it should fire and run with none of the o2 sensors.
if you haven't deleted the VATS or bypassed it it's the likely issue
09-07-2011, 08:35 PM
#25
Staging Lane
Thread Starter
iTrader: (3)
Join Date: Mar 2010
Posts: 79
Likes: 0
Received 0 Likes
on
0 Posts
Were is the coolant plug? There are a couple of plugs close to my MAF plug that I cant find places for so it could be one of those
edit: I just went and checked and its not the coolant plug
Im hoping its just vats that is the problem
edit: I just went and checked and its not the coolant plug
Im hoping its just vats that is the problem
Last edited by yesaCSpencer; 09-07-2011 at 08:42 PM.
