Noddle Posted April 29, 2008 Share Posted April 29, 2008 Hi, will this work ? As you can see from the picture, power is always on to the injectors, I take it, to fire them MS earth's them out, so when the power if off to the MS unit, I would think it would leave the injectors in a open circuit, ie, not firing I'm trying to wire it to fit in with the existing wiring, Nigel Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted April 29, 2008 Share Posted April 29, 2008 When the Megasquirt shuts off, it can sometimes leave the injector drivers on instead of off. It was designed for the injectors to be powered from the same point as the Megasquirt, and wiring it up otherwise can damage your injector drivers or leave the injectors on when you turn off the engine and flood it. Quote Link to comment Share on other sites More sharing options...
Noddle Posted April 29, 2008 Author Share Posted April 29, 2008 Ok, this should work then ? I can wire a relay in the engine bay for the injector power, have I missed any other wire that I may need ? I suppose I should say that, It's will be installed on a standard L24e, running stock electronic distributor, which uses the E12-80 module, no electric fan, no NOS, etc.. Nigel Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted April 30, 2008 Share Posted April 30, 2008 That's more like it. Quote Link to comment Share on other sites More sharing options...
Noddle Posted April 30, 2008 Author Share Posted April 30, 2008 That's more like it. Thank you for looking, since MS is going to be a large learning curve, I need to make sure I understand how I need to set it up, on that note, could you have a look at this schematic and see if I have it wired right, I'm planing to use the existing wiring and make the changes I need. The parts in Red are the changes I believe I need. As you can see from the picture it's not a "Z" but a R30 skyline Nigel Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted May 2, 2008 Share Posted May 2, 2008 I'm not sure on the TPS but it looks like you've got the right idea. Except you're only using the Injector 2 driver. You should have half the injectors on pins 32-33 (doubled up) and the other half on 34-35. Quote Link to comment Share on other sites More sharing options...
Noddle Posted May 3, 2008 Author Share Posted May 3, 2008 I'm not sure on the TPS but it looks like you've got the right idea. Except you're only using the Injector 2 driver. You should have half the injectors on pins 32-33 (doubled up) and the other half on 34-35. Thank you for picking up on the injector driver, am I correct in thinking that the TPS is a variable resistance type TPS, ie the more throttle the more or less resistance it has ? I believe the type on my car now is a switch type, ie, no throttle, full throttle, no in between, so this will need to be replaced. and again, thank you for looking at this, Nigel Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted May 5, 2008 Share Posted May 5, 2008 Check the TPS with an ohmmeter. I know a lot of the early Bosch L-Jetronics did not use a variable TPS. Quote Link to comment Share on other sites More sharing options...
Noddle Posted May 5, 2008 Author Share Posted May 5, 2008 Check the TPS with an ohmmeter. I know a lot of the early Bosch L-Jetronics did not use a variable TPS. You are correct, it's not a variable one, I need to source something else. anyway thank you for your help, I ordered my MS yesterday, I'm looking forward to playing with it. Nigel Quote Link to comment Share on other sites More sharing options...
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