Computer Tuning
12-11-2011, 11:28 AM
#1
1st Gear Member
Thread Starter
Join Date: Apr 2008
Location: California
Posts: 109
Computer Tuning
Im having issues with my sn95, recently installed a E303 cam and a trickflow intake with spacer. Got the bigger MAF from bbk and 24lb injectors and a 70mm throttle body and an MSD pro billet distributor. bbk CAI and nitrous and still using the stock heads currently. I have done Nothing to the computer and have no idea where I should go. It surges at idle until its completely warmed up and then it tends to do better but is just kinda finicky. Any suggestions?
12-11-2011, 04:10 PM
#3
1st Gear Member
Thread Starter
Join Date: Apr 2008
Location: California
Posts: 109
Does anybody have a good Vacuum Diagram? I have replaced a few of the lines from the intake but Im not real sure where else to look. How do I reset the computer after the vacuum lines are checked? Disconnect the battery but it still holds a charge right?
12-11-2011, 05:11 PM
#4
6th Gear Member
Join Date: Oct 2005
Location: st clair shores MI
Posts: 6,028
yeah just pull a battery cable for about 10 minutes.
you may notice that it runs horribly bad right away and wont even stay running without help...that just shows that you need to fix some things. after a while the computer will adjust and make it run ok...but performance will suffer because its accomodating for whatever condition it is having
on the vac lines...look at the passenger side firewall, where all the plastic ones are...look for cracks and brittle lines. on the can on the passenger fenderwell, look for rotted rubber lines, and near the dizzy coming from the intake to the fenderwell....long section of rubber line that can get chewed up passing the dizzy or the connectors get rotted.
you may notice that it runs horribly bad right away and wont even stay running without help...that just shows that you need to fix some things. after a while the computer will adjust and make it run ok...but performance will suffer because its accomodating for whatever condition it is having
on the vac lines...look at the passenger side firewall, where all the plastic ones are...look for cracks and brittle lines. on the can on the passenger fenderwell, look for rotted rubber lines, and near the dizzy coming from the intake to the fenderwell....long section of rubber line that can get chewed up passing the dizzy or the connectors get rotted.
Last edited by nitrous_bob; 12-11-2011 at 05:13 PM.
12-11-2011, 05:22 PM
#6
1st Gear Member
Thread Starter
Join Date: Apr 2008
Location: California
Posts: 109
Thanks guys I appreciate it! I guess that might explain why it throws a fit randomly till about 3 grand and then takes off like a bullitt. Is the heater/ac controls in the sn95 vacuum operated by any chance because it only works on defrost.. haha
