Cookie Monster Posted February 4, 2016 Share Posted February 4, 2016 R300 k series EU2 with roller barrels running an MBE 967.So after much checking last night it appears that there is no signal from the MBE to the injectors to put fuel in.Fuel pressure all good; spark good; plugs totally dry; injector resistance checked and measured 13ohms; wiring continuity all checked OK( yellow to MBE & brown to MFRU); 1 injector checked & clicking OK; on cranking both pins on injectors have 10 volts; checked short to earth & positive all OK. And yes there is fuel in it!So, do MBEs fail?Does anybody have a wiring diagram or a PIN out diagram for an MBE967?It has foxed 4 of us - 3 of whom who know what they are on about! That's not including me! Any thoughts, diagrams, ideas gratefully receieved.Thanks Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted February 4, 2016 Member Share Posted February 4, 2016 Have you talked to Paul Deslandes?Pin outs.Jonathan Link to comment Share on other sites More sharing options...
Cookie Monster Posted February 4, 2016 Author Share Posted February 4, 2016 Thanks Link to comment Share on other sites More sharing options...
Mankee Posted February 4, 2016 Share Posted February 4, 2016 I worked on an EU3 R300 on roller barrels a few years back. It ran horrificly and only fired on two cylinders. I tried the usual plugs, leads and coil pack. Turns out an ignition driver had gone down in the MBE. It had to go back to SBD to get sorted. Link to comment Share on other sites More sharing options...
revilla Posted February 5, 2016 Share Posted February 5, 2016 Random thought, and I know nothing about the MBE so please ignore if irrelevant, but ... it couldn't be an immobiliser issue could it? Link to comment Share on other sites More sharing options...
Cookie Monster Posted February 5, 2016 Author Share Posted February 5, 2016 The thought about the immobiliser had occurred to me too.Thanks Link to comment Share on other sites More sharing options...
pugwash Posted February 5, 2016 Share Posted February 5, 2016 Phil, sorry to hear of your woes. I am sure the experts have tried this but have you bypassed the inertia fuel cut off switch? I think it cuts the fuel pump and you say you have good fuel pressure so probably not, but I always start with the simple things first!Mark. Link to comment Share on other sites More sharing options...
Mark Durrant Posted February 6, 2016 Share Posted February 6, 2016 PhilWhen your car failed to start at Curbs we eventually got it going after changing the TPS. At the time you mentioned that you had only changed it 12 months earlier and whilst they are known to fail it is unusual given the short space of time. Also when they fail they generally start with a misfire at part throttle openings. I wonder of there is a fault with the wiring to the TPS, possibly with the plug to the TPS so it might we worth a check. Do you have the pin outs yet if not I will see if I can find out but it will be during next week.Good luckMark Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted February 6, 2016 Member Share Posted February 6, 2016 Do you need more on the pinouts than in post #2?Jonathan Link to comment Share on other sites More sharing options...
Cookie Monster Posted February 6, 2016 Author Share Posted February 6, 2016 Mark (Pugwash)The inertia switch is bridged so it doesn't cut out if a kerb etc is taken a bit aggressively! Thanks.Mark DYou're correct re TPS but replaced that again so I think the part is ok but wiring is somewhere to look at further. ThanksJKI think I'm ok with what I've got so far. The guys helping me will no doubt advise if we need anything more. Thanks Link to comment Share on other sites More sharing options...
Mark Durrant Posted February 6, 2016 Share Posted February 6, 2016 PhilDo you know another owner with the same ECU if so a quick swap should identify if this is the problem. Do not worry about the map as the engine will not be under load.Mark Link to comment Share on other sites More sharing options...
Cookie Monster Posted February 6, 2016 Author Share Posted February 6, 2016 MarkOne of the guys helping me has an EU3 R300 with the same MBE so will plug that in soon Link to comment Share on other sites More sharing options...
johnv Posted February 8, 2016 Share Posted February 8, 2016 Phil mine is EU2 with rollers and 967 MBE .. happy to come up and swap bits around any time Link to comment Share on other sites More sharing options...
Cookie Monster Posted February 8, 2016 Author Share Posted February 8, 2016 Thanks JohnMight take you up on that shortly depending on how we progress. Whereabouts are you? Link to comment Share on other sites More sharing options...
johnv Posted February 8, 2016 Share Posted February 8, 2016 Bagshot but I can get to you easy enough having joined the ranks of the semi-retired (preferably in the dry!) Link to comment Share on other sites More sharing options...
Cookie Monster Posted February 8, 2016 Author Share Posted February 8, 2016 Thanks - I may have some extended garden leave shortly so as I said I may take you up on it. Link to comment Share on other sites More sharing options...
Mark Durrant Posted February 9, 2016 Share Posted February 9, 2016 PhilYou will need a 967 MBE that has a map for the same engine type either EU2 or EU3. Link to comment Share on other sites More sharing options...
johnv Posted February 9, 2016 Share Posted February 9, 2016 just thought .. mine's EU2 but converted to wasted spark .. I think the map would be the same though, there's just an extra wire into the ECU? Link to comment Share on other sites More sharing options...
Cookie Monster Posted February 10, 2016 Author Share Posted February 10, 2016 JohnBm sent Link to comment Share on other sites More sharing options...
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