supra11487 Posted April 24, 2022 Report Share Posted April 24, 2022 Hi everyone, I have AMC spirit with a jeep 4.0 inline 6 based engine in it that I converted to efi. Running a link g4x stormx, 6 ls coils, bosch 312cc injectors, ford 5.0 throttle body and iac valve, gm 3 bar map, gm ethanol sensor, factory 2001 jeep cam sync as trigger 2, and a balancer made by hesco that is the same trigger pattern as the factory jeep 4.0 one (factory ones were on the flywheel/flexplate) as trigger 1. Both triggers are hall effect and trigger pullups have to b on to get an rpm signal. Trying to run sequential fuel and ignition, There are no faults on the ecu and everything seem to be responding correctly. My coils and injectors fire when preforming the test in the ecu menu in there assigned positions. The problem is I get no spark while cranking, I dont think the injectors are firing while cranking either but im trying to get spark settled first. Grounds and voltages have been checked with no difference. Attached with be my tune, a log, and pictures of the factory flywheel pattern and the damper im running with the pattern in it. any help would be appreciated thank you very much Cheers - Jimmy PC Datalog - 2022-04-23 7;34;37 pm.llgx spirit share file.pclx Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 24, 2022 Report Share Posted April 24, 2022 It is not happy with the trigger, you can see RPM dropping to zero every rev. I think this is probably because your wheel has three gaps but you have it set toi 2 in the software. Set trigger 1 number of gap to 3. I would probably change sync tooth to 1 also. If that doesnt help, please do a trigger scope while cranking and attach here. Quote Link to comment Share on other sites More sharing options...
supra11487 Posted April 25, 2022 Author Report Share Posted April 25, 2022 You're the man Adam that was it 100%, changed trigger one to 3 gaps and now have spark and injector pulses! These are the logs after i changed the gap count. Thank you again. PC Datalog - 2022-04-24 8;21;21 pmwithspark.llgx TriggerScopeLogwithspark.llgx Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 25, 2022 Report Share Posted April 25, 2022 Yeah trigger looks happy now I think. The base timing will need to be checked. The fuel table numbers will need to be much bigger for modelled equation. Set the whole table to 70% will usually be close enough to get it running. Quote Link to comment Share on other sites More sharing options...
supra11487 Posted April 25, 2022 Author Report Share Posted April 25, 2022 Sounds good, I will try to check timing hopefullytonight. Will also bump the fuel. Think I should still set sync tooth to 1? I will later and take another log. Cheers -Jimmy Quote Link to comment Share on other sites More sharing options...
supra11487 Posted April 26, 2022 Author Report Share Posted April 26, 2022 These are the logs I got from tonight after changing sync tooth count to 1. Checked my timing and it is at 0, going to get some help with the fuel and try to start. Thank you much Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 26, 2022 Report Share Posted April 26, 2022 After seeing the scope yesterday, Sync tooth 1 or 2 would be perfectly fine in this case. Quote Link to comment Share on other sites More sharing options...
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