Hi, Hopefully I can still remember the MS.
Duty cycle is the amount of time the injectors are open. The injectors are configured for 2 squirts per engine cycle. (Most Zetec base maps are set to 4, it supposedly improves emissions, however it's only noticeable in a lab and causes rough idling due to the large injector size needed for the turbo) with big injectors you can't squirt a small enough amount of fuel quickly enough. Anyway that's not quite relevant right now. The gauge should read very low on idle / low kpa. Unless you put it under load, you won't see much. Worth setting megasquirt to log, then open the file in excel/notepad to see raw values. I had it happen once, after a very spirited drive and an on/off/on power quick combo down a steep hill, I lost power, sounds like running without one cylinder, restarting wasn't possible. 10 minutes later and it was fine. I suspect a flooding issue. If you haven't already, give it another go. Once also I totally lost everything, no idea how, but the ECU had scrambled the map and all settings. Re-loading the map sorted that. It's easy to do. Switch on the car, load megatune and then use the menu to load your last saved map. I gave you a copy of just about every version over time but think you tuned it more since. When I originally mapped the car I did have a bit of pinking, I set the plug gaps much smaller and that resolved that. Unless you've changed them, that may well be worth checking and changing. I can't for the life of me recall the gap now but seem to recall it was half that of a regular Zetec. Plugs are standard RS turbo focus from ford. Leads are standard Zetec. Fuel pressure shouldn't be an issue, but worth checking. Think it's around 3 bar, slightly higher than standard. It uses a standard valve, but is squashed slightly (can tell you how to do it if that comes up) Hopefully it won't be compression/head gasket or anything as serious as that, however HG is standard Ford Focus RS turbo (metal). Decomp was custom from the engine people who supplied quantum at one point. 3mm aluminium. You should have the original receipt if not I can rack my brains. Coil packs as Jim says fail two cylinders normally, it will still run on two but will be very obvious. I doubt the injector wiring will have any kind of issue, however you can if enough wire switch the connectors around, they all fire at the same time I recall. I may have some spare injectors knocking about but not sure. They are from a 200 SX 350cc ;one of the few side feed designs that fit the ford rail. It's possible to remove the inner two so long as you don't have extra large hands. The EDIS module may be worth a check. Jim may be able to guide you on that one. What else, lambda failure will make it run very rich, but shouldn't loose too much power. Depending what you've done with the tune of course. I err'd on the side of caution with that one. Vacuum and breathers should be ok, but worth checking the breather on the inlet manifold spacer plate - it should be blocked off (it's no use on a turbo) If you can describe how it sounds (or video it) I may be able to better guess if it was anything I ever faced. Hope that gives some things to consider. I'm at the end of the phone if you need help with megasquirt. If you can get it in the Internet whilst connected to the car I should even be able to check it over from here if needs be. Good luck and fingers crossed its simple. M > On 29 Oct 2015, at 10:38, Robert Craig <[email protected]> wrote: > > Just seen Jims reply. > > I'll do a compression test at the weekend. Makes sense for the short time it > takes. The car had run fairly hot on the Knockhill track day, so could have a > head gasket issue. No water in oil or oil in water, so could be a blow > between cylinders. > > Bob > > Sent from my iPad > >> On 29 Oct 2015, at 08:56, Jim Hearne <[email protected]> wrote: >> >> It's Matthew Wastells old car. >> It's a 2+2 with a 2L Mondeo silver top Zetec bottom end. >> Turbo charged with a Focus RS turbo, exhaust manifold and sump. >> The inlet manifold is actually just a RS1800 part. >> Big valve ported head. >> Decompression plate to reduce to compression (the first engine with highly >> expensive low compression pistons didn't go so well). >> Uprated injectors, Megasquirt ecu, chargecooler. >> >> I can't remember much of the rest of the spec. >> >> Jim >> >> >> >> >> >> >> >> -----Original Message----- From: Nigel Plant >> Sent: Wednesday, October 28, 2015 10:17 PM >> To: Quantum Owners Group >> Subject: Re: [Quantum Owners] Misfiring Zetec >> >> Hi Bob >> Is yours an Xtreme? If so, am curious about the inlet manifold >> configuration, but as for the misfire, would either suspect a wire >> connection issue on the injectors (did you buy it with turbo?) Or if an >> xtreme and the turbo sits high with coil pack on the side, the turbine can >> be quite near the coil pack, causing it to get too hot. I shielded mine to >> avoid a potential problem >> Nigel >> >> -- >> -- >> You received this message because you are subscribed to the Google Groups >> "Quantum Owners Group" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/quantumowners?hl=en >> >> IMPORTANT NOTE: All information presented herewith is provided on an "As Is" >> basis, without warranty or the implication thereof. Neither the Quantum >> Owners Club nor the individuals associated with the Quantum Owners Club or >> in the preparation of the above information shall have any liability to any >> person or entity with respect to liability, loss, or damage caused or >> alleged to be caused directly or indirectly by the instructions contained >> within this or related message(s). >> --- You received this message because you are subscribed to the Google >> Groups "Quantum Owners Group" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> >> -- >> -- >> You received this message because you are subscribed to the Google Groups >> "Quantum Owners Group" group. >> To post to this group, send email to [email protected] >> To unsubscribe from this group, send email to >> [email protected] >> For more options, visit this group at >> http://groups.google.com/group/quantumowners?hl=en >> >> IMPORTANT NOTE: All information presented herewith is provided on an "As Is" >> basis, without warranty or the implication thereof. Neither the Quantum >> Owners Club nor the individuals associated with the Quantum Owners Club or >> in the preparation of the above information shall have any liability to any >> person or entity with respect to liability, loss, or damage caused or >> alleged to be caused directly or indirectly by the instructions contained >> within this or related message(s). >> --- You received this message because you are subscribed to the Google >> Groups "Quantum Owners Group" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. > > -- > -- > You received this message because you are subscribed to the Google Groups > "Quantum Owners Group" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/quantumowners?hl=en > > IMPORTANT NOTE: All information presented herewith is provided on an "As Is" > basis, without warranty or the implication thereof. Neither the Quantum > Owners Club nor the individuals associated with the Quantum Owners Club or in > the preparation of the above information shall have any liability to any > person or entity with respect to liability, loss, or damage caused or alleged > to be caused directly or indirectly by the instructions contained within this > or related message(s). > --- > You received this message because you are subscribed to the Google Groups > "Quantum Owners Group" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. -- -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s). --- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
