H-I-J '76 Nova re-fit.

[FireSale]

Originally Posted by Nmbr1GMfan

I clamped the test light wire to positive and stuck the "record wire", when I push the button the test light lights indicating ground. Also, I'll assume when the ignition is cut after the finish line it will stop recording when I get this sorted out? Now it records till I shut it off in the program.

I have an Innovate Motorsports air/fuel recorder that activates off a short to ground momentary button like your setup. It's very sensitive to power interruptions. If I forget to shut the SD recorder off by hand and kill the engine it will dump all data from that run. Killing the engine at the stripe might be corrupting your data.


Have you been able to get a readable file at idle in the shop?

[Nmbr1GMfan]

Originally Posted by FireSale

I have an Innovate Motorsports air/fuel recorder that activates off a short to ground momentary button like your setup. It's very sensitive to power interruptions. If I forget to shut the SD recorder off by hand and kill the engine it will dump all data from that run. Killing the engine at the stripe might be corrupting your data.


Have you been able to get a readable file at idle in the shop?

Only by hitting record in the program.

[FireSale]

Originally Posted by Nmbr1GMfan

Only by hitting record in the program.

If you have a trusted line lock or transbrake button to spare, wire it in place of the factory button to eliminate a failed switch as the issue.
If that still fails, wire a switch to the alternate contacts mentioned in the manual. It's possible the factory trigger circuit (blue button circuit) is faulty in the box.


EDIT: BTW, that switch is a $13 part.

[Nmbr1GMfan]

Originally Posted by FireSale

If you have a trusted line lock or transbrake button to spare, wire it in place of the factory button to eliminate a failed switch as the issue.
If that still fails, wire a switch to the alternate contacts mentioned in the manual. It's possible the factory trigger circuit (blue button circuit) is faulty in the box.


EDIT: BTW, that switch is a $13 part.

I'll have it out to work at it later this week.