Smart coil not firing (no spark)
Moderators: jsmcortina, muythaibxr
Smart coil not firing (no spark)
Have 99 jeep 4.0 running a microsquirt V3. Got a new smart coil with a built in ignitor. Ignout1 is going to pin A as my trigger and my sensor ground is pin B everything is just else is just as the manual says (see pinout below). I get no spark at all in test mode or cranking. Ive pulled a plug and tried to check with a single plug right to the coil and still nothing. Am I missing a resistor I need to hook up? Run the additional sensor ground just to the coil? No clue! Any help is appreciated I'm totally stumped.
Pinout:
A: Coil Trigger (0-5V signal) - Ignout1 (no resistors just straight to ms)
B: Coil Trigger (Ref Ground) - sensor ground
C: Ground to Cylinder Head
D: Battery Ground
E: Battery Positive (Relay or switched ignition)
Pinout:
A: Coil Trigger (0-5V signal) - Ignout1 (no resistors just straight to ms)
B: Coil Trigger (Ref Ground) - sensor ground
C: Ground to Cylinder Head
D: Battery Ground
E: Battery Positive (Relay or switched ignition)
Re: Smart coil not firing (no spark)
Can you post the tune file?
1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????
Re: Smart coil not firing (no spark)
For sure. Sorry, thought id attached it.
- Attachments
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- CurrentTune.msq
- (119.08 KiB) Downloaded 3 times
Re: Smart coil not firing (no spark)
Tune seems to be set correctly. What is the coil from?
1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????
Re: Smart coil not firing (no spark)
Coil is an AEM 30-2853 high output smart coil
Re: Smart coil not firing (no spark)
coil looks like it should be compatible, providing you wired it per there instructions. if you disconnect the coil and get a volt meter on the ign1 pinA of coil plug and use 'output Test Mode I/O' you should be able to toggle the pin between high and low using on & off eg 5v and 0v that output should have an internal pull up resistor already.
1990 bmw 320i daily driver with m20b25 ms3 sequential fuel, 380cc injectors, d585 coil near plug, home made cam sync, launch control, fan control, vss, homebrew egt logging what's next????
Re: Smart coil not firing (no spark)
Alright I'll check into the wiring some more I've got some ideas. At least I know all the settings and all that aren't the issue. Thanks a lot