revilla Posted June 25, 2019 Share Posted June 25, 2019 It's the NEGATIVE corrections that you need. Was it set to allow -30% (video was out of focus, couldn't read it).I wouldn't bother using the "3" button to rich it up further, that's just making it worse.You want NEGATIVE trim.Lambda is proportional to AIR/FUEL ratio; increasing the lambda means reducing the fuel. Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 the settings currently just loaded are direct from the two steves a week ago or so. Link to comment Share on other sites More sharing options...
revilla Posted June 25, 2019 Share Posted June 25, 2019 That one plug does stand out as being odd/different. Are you sure it was oily, not wet with fuel and soot? Wondering if you have a problem with one injector leaking. Link to comment Share on other sites More sharing options...
CageyH Posted June 25, 2019 Share Posted June 25, 2019 I assume that you have not overwritten the original Maps with the changes suggested in this thread? My intention was to see if the lambda was working, and it appears to be. To be 30% out on fuelling makes me wonder if it is an injector scaling issue, but it is hard to know as the Lambda is only on one cylinder. Do you have a 4-1 cat in the exhaust with a lamba bung in it? Link to comment Share on other sites More sharing options...
aerobod - near CYYC Posted June 25, 2019 Share Posted June 25, 2019 A couple of observations:- with your narrow band sensor you can’t take any specific Lambda value to infer a specific amount of fueling, it can only tell you if it is lean or rich. This is because it is very non-linear with below 0.3 volts indicating A/F from infinity to 14.5, 0.3 to 0.6 volts indicating A/F from 14.5 to 14.9 and above 0.6 volts indicating A/F from 14.5 to zero. It is only accurate to signal to the ECU that you have switched between lean and rich or vice-versa, not what your Lambda / A/F value actually is.- If you still have one plug that is very wet and black with the others being dry and tan after getting closed loop oscillation either side of stoichiometric, it would probably mean the injector on that cylinder is malfunctioning and over fueling, the closed loop fueling trim will be completely misleading if that is the case. Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 I have reset using ey 1 every time I have returned to 10 the max correction and and saved then reloaded to check.I have ctrl-t the TPS to ensure that has been applied.Yes I have lamda bung in 4-1 with cat am I going to need a spanner? That was used for the mapping. for my reference How to configure the K6 to monitor a simple O2 sensor. www.emeraldm3d.com/software-manuals Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 @aerobod I think rj was suggesting I clean the injectors a while back.. is that something I can attempt? Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 @revilla that plug is still wet, I was just looking at it earlier (long removed from the car) Link to comment Share on other sites More sharing options...
revilla Posted June 25, 2019 Share Posted June 25, 2019 You're going to need a 22mm spanner and probably an extension cable with a 4-pin Econoseal on either end as I doubt the existing wire will reach back to the lambda boss on the collector. If you want one posting let me know how long! (Extension that is, not spanner!). Link to comment Share on other sites More sharing options...
aerobod - near CYYC Posted June 25, 2019 Share Posted June 25, 2019 You could, but it may require more than cleaning. If it is varnish or debris that is holding an injector open, cleaning may work, if it is an electrical problem it won’t. If you have a big difference in plug look it is either going to be a difference in fueling between cylinders or less likely in your case a bad misfire or very slight probability of a valve or bore issue. It may be prudent to take the injectors to an injector specialist for testing and rejuvenation as appropriate, it should be a standard Bosch injector if they need to source a replacement. Link to comment Share on other sites More sharing options...
revilla Posted June 25, 2019 Share Posted June 25, 2019 If the plug is still wet all this time later it does sound more like an oil issue than a fuel issue. Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 cheaper just to replace the injector? assuming that is something I can do unsupervised.. Link to comment Share on other sites More sharing options...
aerobod - near CYYC Posted June 25, 2019 Share Posted June 25, 2019 If the wet plug dries on its own, it is likely all fuel contamination, if it stays wet for hours more likely oil. There also should be blue smoke from the exhaust with slight revving if there is enough oil to coat the plug. Link to comment Share on other sites More sharing options...
aerobod - near CYYC Posted June 25, 2019 Share Posted June 25, 2019 You could eliminate the injector as a problem by doing that, also doesn’t hurt to have a spare if it isn’t the problem. The other 3 though could be a bit worn, so optimally they should be balanced. Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 I have enquired about availability of a set. R500K if anyone knows exactly the part. (please let it be simple work). Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 no blue smoke - I'd have seen that. Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 dup Link to comment Share on other sites More sharing options...
revilla Posted June 25, 2019 Share Posted June 25, 2019 Anthony do you have a catalytic converter? If so, from personal experience, you can be burning a hell of a lot of oil and see nothing in terms of smoke at all. My car was burning 1.7 litres every 1000 miles, no funny smells and no smoke. It was all burning up in the cat, as was the matrix of the cat itself! Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 back to #146fresh pic of plug here in a few minutes (out fo car now for weeks)and a pic of the existing plugs in the car before anyone asks, the ones with my hand showing are the new plugs, they have been out for the emissions test, about say 35 miles round trip, plus all this testing, so a lot of idling. The old ones don't know 5 or 10 thousand miles, really no much idea. Could be a lot less.next post: first are the old plugs picture taken a few minutes ago, plugs removed weeks ago, second are the current new plugs (end pic is injector) http://www.gomog.com/allmorgan/InjectorRatesBosch.htmlhttps://rimmerbros.com/Item--i-GRID018860 Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 yes I have been worried for my cat for ages, smt25 knows all about following me.apparently it's 37 deg c down in the valley, glad I'm not down there. Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 can't I just remove the injector and wash it in mild green fairy liquid? Link to comment Share on other sites More sharing options...
revilla Posted June 25, 2019 Share Posted June 25, 2019 Err .. No! It's the insides that need cleaning. Microscopically. Usually done with ultrasound. Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 oh well.. Redline are checking parts Link to comment Share on other sites More sharing options...
revilla Posted June 25, 2019 Share Posted June 25, 2019 I think I paid £60-ish for four injectors ASNU cleaned. By post. They do a full report on flow and spray pattern before and after too. At least that way you would know if you had an issue. Link to comment Share on other sites More sharing options...
anthonym Posted June 25, 2019 Author Share Posted June 25, 2019 yeah but how much longer will my car be off the road? ship to uk and back etc etc This Swiss mot fail has halted any plans I had ..given the compression test was ok a while back, my suspicions do rest on the injector at present. Link to comment Share on other sites More sharing options...
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