# Coils are connected properly, ouput testing is working but no spark on cranking **URL:** \ **Category:** EMU BLACK / CLASSIC\ **Created:** [July 16, 2026, 4:37pm UTC](https://community.ecumaster.com/t/coils-are-connected-properly-ouput-testing-is-working-but-no-spark-on-cranking/6192 "2026-07-16T16:37:31Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![PRT\_RACER](https://avatars.discourse-cdn.com/v4/letter/p/f14d63/32.png) [@PRT\_RACER](https://community.ecumaster.com/u/PRT_RACER)\ **Post date:** [July 16, 2026, 4:37pm UTC](https://community.ecumaster.com/t/coils-are-connected-properly-ouput-testing-is-working-but-no-spark-on-cranking/6192/1 "2026-07-16T16:37:31Z")
Hello guys, am currently trying to make my teams fazer 600 engine to work but i have zero spark. First of all our wiring is correct so crankshaft position sensor and coils are working perfectly, also when i test the ouputs with the spark plugs outside the engine and grounded with the engine, we have very strong spark but when i am cranking the engine we have rpm , trigger scope (which does not have errors, isnt the best 24-1 that you can see but it can work) and no spark at the spark plug. I have tried everything at the software and nothing works, i was wondering if ecu master does not let you start up the engine internaly if you scope isnt on point or something like that for safety reasons or maybe i have something wrong in the setup that blocks the cranking spark. I am submiting my project as well if anyone has any idea whats going on. thank you for your time any help would be much appreciated [star.emub](https://community.ecumaster.com/uploads/short-url/n01Gp6bWKrh9QafZvvZAeNAI599.emub) (145.7 KB) ---
**Author:** ![matth](https://avatars.discourse-cdn.com/v4/letter/m/f475e1/32.png) [@matth](https://community.ecumaster.com/u/matth)\ **Post date:** [July 16, 2026, 8:15pm UTC](https://community.ecumaster.com/t/coils-are-connected-properly-ouput-testing-is-working-but-no-spark-on-cranking/6192/2 "2026-07-16T20:15:17Z")
You have 40 revolutions of start delay turned on. Try it with 0. ![image](https://europe1.discourse-cdn.com/flex013/uploads/ecumaster/original/2X/5/5932038f58b2a9b3fd5da46ea2236638c77cf887.png) ---
**Author:** ![PRT\_RACER](https://avatars.discourse-cdn.com/v4/letter/p/f14d63/32.png) [@PRT\_RACER](https://community.ecumaster.com/u/PRT_RACER)\ **Post date:** [July 16, 2026, 8:22pm UTC](https://community.ecumaster.com/t/coils-are-connected-properly-ouput-testing-is-working-but-no-spark-on-cranking/6192/3 "2026-07-16T20:22:11Z")
[starv2.emub](https://community.ecumaster.com/uploads/short-url/ygoFFEMtBvdpGwcpjh22PgjzF9m.emub) (146.2 KB) Thank you for the suggestion but it didnt work, i have twicked some other setting and now i am getting spark only at cylinders 1,4. 2,3 dont have any sparks. When I change the revs to 0 i dont have spark at all.