Questions about the Platinum Sprint series ECU settings or features? Ask here.
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Hey guys I am helping a friend with his tacho that isn't working. He has a 97 miata 1.8 engine running COP with 1zz coils. He is running a haltech sprint 500 and I was wondering if I can connect the ecu tacho output to the tach signal directly? Or do I need a tach adapter for the signal one like the MSD 8910?
Peterson wrote:Most likely yes if the tachometer receives signal from the oem ecu at the first place.Start at 5 volt 50% duty cycle as first attempt-base line.
Yes, already confirmed tacho receives the signal from the stock ecu. Thanks!
Everything went as planned he has his tach working again, but I found something in the base fuel table the injection time for 5 psi was 10.2ms and at 10psi it was 10.4ms So either one load is lean or the other is rich I ask him about it and told me AFR where consistent in the 10.9 area. I dont know if I am missing something here, btw injectors were 550cc.
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