Scott_M67 Posted September 29, 2009 Share Posted September 29, 2009 I've been reading through the MS threads and read where there can be problems with getting the factory tach to work, at least when using a different ignition system like EDIS. Can someone confirm if there any problems with getting the factory tach to work when using the stock turbo dizzy with MS 1 or MS 2. I've been on the fence on which MS to purchase, the cost difference is pretty minimal and it seems like MS2 is becoming widely used now. My main concern has been with reading about some guys having stability issues with the units and needing to occasionaly reload software when the system hickups, certainly not very ideal for a driver. Can this be due to a grounding issue or wires not shielded properly? Also is there any reason you can not or should not use a stock idle Valve with MS 1 or 2? Quote Link to comment Share on other sites More sharing options...
tech9 Posted September 29, 2009 Share Posted September 29, 2009 The tach should work exactly as it does on the car now. Just have to bring the tach signal to MS. The idle valve "should" work, I think I saw a few people using them before, if not there are a million options for MS. Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted September 30, 2009 Share Posted September 30, 2009 Yes, the tach works as it always did. I use the "air bypass valve" for cold fast idle with MSII. I did not tie the valve to MS. It just gets powered when the car starts. If the car is cold, it will idle fast. I had a few issues in the beginning with MSII not booting up, but I think those issues were due to my old laptop doing strange things, and some faulty relays I was using. Quote Link to comment Share on other sites More sharing options...
TrumpetRhapsody Posted September 30, 2009 Share Posted September 30, 2009 So you have the coolant lines hooked up Dave? Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted September 30, 2009 Share Posted September 30, 2009 No, I just run it in electric mode all the time. The coolant loop was eliminated long ago. The idle drops more quickly without the coolant in cold weather but it still keeps the idle up long enough. Quote Link to comment Share on other sites More sharing options...
Scott_M67 Posted September 30, 2009 Author Share Posted September 30, 2009 Good news on the tach. I didn't want another project trying to figure out how to get the tach to work too. So do I understand correctly that most guys are eliminating the cooling lines to the throttle body? Quote Link to comment Share on other sites More sharing options...
FlatBlack Posted September 30, 2009 Share Posted September 30, 2009 They are talking about the coolant lines to the Idle Air Control. I'm thinking about just hooking up my IAC to a switch. I don't know where I'm going to route the air lines though. I have no problem with my tach as I'm still using a coil and the ZXT dizzy, TR was having problems with his car running EDIS. Chris did you ever figure out what to do? Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted April 2, 2012 Share Posted April 2, 2012 I know, old old thread back from the dead. But I am currently digging into the archives in preparation for Megasquirting my L28ET, and I was wiring my ignition this weekend. The 280Z has a resistor in series with the tachometer signal from the coil (-), and mine is missing. What is the value of that resistor? Does anyone have one they can spare? Quote Link to comment Share on other sites More sharing options...
NewZed Posted April 2, 2012 Share Posted April 2, 2012 I know, old old thread back from the dead. But I am currently digging into the archives in preparation for Megasquirting my L28ET, and I was wiring my ignition this weekend. The 280Z has a resistor in series with the tachometer signal from the coil (-), and mine is missing. What is the value of that resistor? Does anyone have one they can spare? I measured 2.3 kOhms. But I need to keep mine. Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted April 2, 2012 Share Posted April 2, 2012 I measured 2.3 kOhms. But I need to keep mine. Thanks, that's a help. I can crimp bullets on a regular resistor, and plug it right in. Quote Link to comment Share on other sites More sharing options...
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