holley hp efi help no spark
05-28-2014, 09:18 PM
#2
Teching In
Join Date: Oct 2010
Location: Newfield, NJ
Posts: 21
Likes: 0
Received 0 Likes
on
0 Posts
Have you performed a TPS Autoset? This must be performed. TPS will display "needs cal" until you complete this step.
05-29-2014, 01:26 PM
#7
Teching In
Join Date: Oct 2010
Location: Newfield, NJ
Posts: 21
Likes: 0
Received 0 Likes
on
0 Posts
Generally not if it's reading RPM from that sensor. Have you verified 12V on the injector and coil harness? Loose grounds are connected etc? Other areas are possible cam sensor or something not loaded in the tune properly. You can perform an *.SL Internal Log to check the cam/crank signals are being seen and sync'd properly.
Trending Topics
05-29-2014, 03:17 PM
#9
Teching In
Join Date: Oct 2010
Location: Newfield, NJ
Posts: 21
Likes: 0
Received 0 Likes
on
0 Posts
You need to "enable" the SL Log in the Datalog>Setup ECU Logging> Logging Type>System Log. The log file will be internal so you will need to download it after your cranking test. *.DL is a normal log (ECU Sensors) and the *.SL is a System Log showing inputs from cam and crank channels. Check for missing and/or mistimed cam pulses.
05-30-2014, 01:02 AM
#10
You could try batch fire to eliminate the cam sensor. If it runs fine in batch fire, you know the problem. If it doesn't run, then the cam sensor is likely not the problem.
Getting an rpm value to show up while cranking, pretty much takes the crank sensor out of the equation.
Getting an rpm value to show up while cranking, pretty much takes the crank sensor out of the equation.
06-04-2014, 09:24 PM
#11
no spark or no fuel to the cylinders means that you dont have voltage to the fuel ignition harness.
it ties into a relay along with the fuel pump
if that relay does not not have 12v power, you wont have spark or fuel power
I believe there is a Loose Green wire on the relay that is used to go out to a Low amperage fuel pump(no more than 10 amps)
Pin J1-A2,(should be a red wire), which is the fuel pump relay output, has to be sending power for the Coils/injectors to have power
it ties into a relay along with the fuel pump
if that relay does not not have 12v power, you wont have spark or fuel power
I believe there is a Loose Green wire on the relay that is used to go out to a Low amperage fuel pump(no more than 10 amps)
Pin J1-A2,(should be a red wire), which is the fuel pump relay output, has to be sending power for the Coils/injectors to have power
06-05-2014, 11:57 PM
#14
I have power to ignition harness and injector harness when i turn key on first five seconds. I also get the fuel pump primed when key is cycle.I have 12v at red and white wire when cranking.I have a few things to try on sunday. i only get to work on the car 1 day a week because of my work and the cars location. I will report back on sunday.Any other ideas?
06-08-2014, 07:35 PM
#16
does the RPM signal show an rpm value? or does it say stall/syncing/error
is the firing order set correctly in the file?
what is cranking timing, and have you verified with a timing light that it matches.
are you using one of the files that has LS1 stuff already setup in it... or did you make a completely new file from scratch?
what is your cranking fuel tables set as? and have you enabled the fuel prime % and set it to a value above 100%?
is the firing order set correctly in the file?
what is cranking timing, and have you verified with a timing light that it matches.
are you using one of the files that has LS1 stuff already setup in it... or did you make a completely new file from scratch?
what is your cranking fuel tables set as? and have you enabled the fuel prime % and set it to a value above 100%?
