hey guys I just got a emanage and I saw something about the unit seeing exactly half the rpms if I don't have a tach adapter, what is this thing and where can I get one. I was also wondering if I have to put resistors in front of the injectors because they are low impedence.
it should handle your injectors fine as far as i know. the tach signal you are getting from the wrong place. get it fromt he ecu, connector 2 (black) pin #10 and itl be dead on even if there isint a wire there just cut a slit in the little rubber thing and slip the wire in.
99 Turbo Sunfire GT | Ram 2500 | International Rollback | Mr Hanky the Suburban
Well you definately want to put some resistors in line with thoes injectors...... not only for the emanage, but for the stock ECU too. Otherwise you run the risk of burning out the drivers in both. Somewhere in the area of 10ohms but use a meter to check what you have now.
The tach adaptor (at least the MSD that I have) is a box that splices into the power supply wire of the ICM and senses when coil charges occur and supplys a tach signal approprately. The one thing I noticed when running my emanage off of the tach adaptor was that while I did get a correct RPM reading my injector duty cycle was wrong. So i ended up removing the tach adaptor and just dealing with tuning in 1/2 rpm's becasue with the double duty cycle problem I was having i couldn't use the additional injection map.
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does it effect anything tuning with half the rpmsor does it still work fully, because with the turbo I need the additional injector map
Well as long as you tune it understand that the 1/2 rpm issue is there you'll be fine. Just re-map the columns for half. I started at 400 (really 800)and I stop at 3300 (really 6600)
On the other hand, if you use the tach adapter the emanage will see full RPM, but i anticipate that you will run into the same duty cycle problem that I had. Good luck with your project.
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