Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I'm doing an engine conversion on a 1988 Mazda Rx7
I'm putting in a I6 engine where the oringinal motor is a rotary engine that has a tach signal like a 4 cylinder.
So how can I make the stock tach work properly with the new 6 cylinder output?
Any ideas on circuits or maybe you guys...
Thank you guys so much! It's a thing of beauty. You press the A/C button in the car and the idle raises up and the compressor clutch engages.
You've actually found a solution for MANY people who are having this problem with this popular swap.
In case anyone was wondering, it's a 95 Toyota...
yeah i don't know why it didn't work! :(
i'll try the one in post 52... any way I can test that the circuit it working with a multimeter? (regardless of whether it works for the ECU)
On a side note, i found a small LED in an old broken printer and the signal (4.6v) from the ECU was enough to...
Do the circuits posted allow the ecu to pull all the power it needs?
I tried giving it 12v through some resistors and it would stop engaging the compressor at about 600ohms from a direct ~14v source.
It needs about 20-25 mA to kick on (it's 13.6-14.0v when car is running) and holds solid...
well i made these two: https://www.electro-tech-online.com/attachments/relaydrvr-jpg.28937/
And couldn't get either to switch a small relay with supplied signal from AC amp...
not sure why
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