Hello, Im new here and need some help. My ls swap project is my 98 1500, swapped in a cammed LQ9. I followed Brendan step by step on lt1swap to strip both the ls & obs harness and then merge them. Using the obs fuse block and made my own stand alone relay/fuse block to power the LS harness. I took serious time re-working these harnesses and soldering all my connections the right way.
Got everything on the truck, Flashed base tune in, turns over but no start.
My issue is Im only getting spark on #1 spark plug. Non of the others are getting spark. I plugged #1 coil plug into #3 coil and got spark there. Verifying im only getting spark signal to #1 coil plug.
I have checked grounds.
I have replaced crank sensor.
I have checked each ground on each coil plug as well as 12vpwr.
I do notice that no matter where i check for power, once i start cranking it drops down to 10V. But that should still give me spark on all my coils i would think.
I have ohmed out each coil plug signal wire from the pcm pin to the plug and they are checked out fine.
Im all out of ideas, help please. Thanks
Got everything on the truck, Flashed base tune in, turns over but no start.
My issue is Im only getting spark on #1 spark plug. Non of the others are getting spark. I plugged #1 coil plug into #3 coil and got spark there. Verifying im only getting spark signal to #1 coil plug.
I have checked grounds.
I have replaced crank sensor.
I have checked each ground on each coil plug as well as 12vpwr.
I do notice that no matter where i check for power, once i start cranking it drops down to 10V. But that should still give me spark on all my coils i would think.
I have ohmed out each coil plug signal wire from the pcm pin to the plug and they are checked out fine.
Im all out of ideas, help please. Thanks