mad_pete Posted April 16, 2016 Author Share Posted April 16, 2016 Okay seems like something else is getting power off that circuit. If I turn the engine on the idle valve does do something so I think it is correct but something else is doing something too. If I turn the ignition off with the idle valve connected the engine keeps running for an amount or time so either the ninth injector is running or the squirt is able to draw power from that connection somehow. As soon as it's disconnected it stops. The tick tick could be the ninth injector running and the reason it was grumpy before was it had flooded the engine a little? Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted April 18, 2016 Share Posted April 18, 2016 It's hotwire, you shouldn't have a ninth injector? The ECU could be back-powered by 12v on that wire. The hotwire loom has duplicated colour codes (some dashes, some stripes) and wires that change colour half way through the loom so you need to be very sure what you're connecting. Running one new wire might be easier, even if just temporarily? Quote Link to comment Share on other sites More sharing options...
mad_pete Posted April 18, 2016 Author Share Posted April 18, 2016 I'm going to run 2 new wires. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted April 18, 2016 Share Posted April 18, 2016 Sounds like a plan... Quote Link to comment Share on other sites More sharing options...
mad_pete Posted June 16, 2016 Author Share Posted June 16, 2016 and 2 new wires it is happy, apparently not having it connected or having it connected to other random parts of the engine can impact performance. Tiny bit of hunting but much better and doesn't try to run away in drive or 1300 when idling in neutral. Do we have a section with idle valve settings people are using posting up. I don't yet understand what all the settings do and always useful to have something to copy. I might turn the engine idle down so the valve isn't working at it's min value. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted June 16, 2016 Share Posted June 16, 2016 Idea is now, to block the ISV hose, and set the idle to ~650rpm, then use the valve to bring it up to whereever you want it (850?). Quote Link to comment Share on other sites More sharing options...
mad_pete Posted July 31, 2016 Author Share Posted July 31, 2016 Ok done that and idle is very nice now. Quote Link to comment Share on other sites More sharing options...
zim Posted July 31, 2016 Share Posted July 31, 2016 I had the identical problem. First start would always crank, fire then die. Second crank was always fine. Can't remember how i solved it though, sorry G Quote Link to comment Share on other sites More sharing options...
mad_pete Posted July 31, 2016 Author Share Posted July 31, 2016 It's a bit better with that because the idle valve is giving fast idle on start. I'll play with that some more. Quote Link to comment Share on other sites More sharing options...
bodumatau Posted August 1, 2016 Share Posted August 1, 2016 Mine was also doing that and I seem to have solved it, you can set how long your Bosch valve stays completely open after the start, longest value is 255, that seems to give the engine enough time to find itself and when the valve closes mine dips briefly below 650 (even though I have the idle bypass valve at a higher idle that that, don't quite understand why yet) And then it settles. I also found that upping my after start enrichment has helped, but....as I am learning with megasquirt, rather try small increments that changing it by 20% cause then it unbalances something else and that doesn't work again.. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted August 1, 2016 Share Posted August 1, 2016 bodumatu - Things do affect each other, that's the nature of engine tuning! The knack is learning the hierarchy of settings, what to fiddle with in what order. Generally I'd say you want to get the ignition table right above all else, and then leave it alone. Then the fuel table, and only then tinker with all the enrichments and additions that happen at various times (crank, after-start, warmup, accel, decel/over-run, etc. etc.). Quote Link to comment Share on other sites More sharing options...
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