Homer Posted April 14, 2007 Author Share Posted April 14, 2007 You could always just cut the plug off and use a couple of crimped bullet connectors. Good idea, i'll give it a go. Quote Link to comment Share on other sites More sharing options...
Homer Posted April 14, 2007 Author Share Posted April 14, 2007 New temp sesnor is in and wired up.. but it hasn't made any difference. The car won't even run now (this happened the other times too). Any more ideas? Quote Link to comment Share on other sites More sharing options...
Jake Posted April 14, 2007 Share Posted April 14, 2007 Any more ideas? Arson? Quote Link to comment Share on other sites More sharing options...
Homer Posted April 14, 2007 Author Share Posted April 14, 2007 Arson? it's crossed my mind! Quote Link to comment Share on other sites More sharing options...
Homer Posted April 14, 2007 Author Share Posted April 14, 2007 Okay, it JUST about manages to idle. The data from the log files show the following at 450rpm (it will not idle any higher): Injector duration: 6.8ms Injector duty: 3% Now, normally it has a 2.1ms duration and 1%, so the above confirms it is a massive overfuel causing the bad idle (Nothing has changed on the map). Only thing is - what can cause this that hasn't been mentioned already? Quote Link to comment Share on other sites More sharing options...
dandan Posted April 14, 2007 Share Posted April 14, 2007 Can you run it for long enough to compare hot idling to cold idling? Quote Link to comment Share on other sites More sharing options...
Homer Posted April 14, 2007 Author Share Posted April 14, 2007 Can you run it for long enough to compare hot idling to cold idling? Thanks for thge suggestion Dan. I could keep it going for 15 minutes to get it warm but I think thats extremely bad for the engine (bore wash, sensor fauling, plugs, etc). Also the last time this happened the car was warm (had just pulled up at a petrol station), so I do not think its a problem between the cold/warm idle settings. Quote Link to comment Share on other sites More sharing options...
Darren Posted April 14, 2007 Share Posted April 14, 2007 Any more ideas? Get it trailered to a Pro... then start enjoying it again Quote Link to comment Share on other sites More sharing options...
JamieP Posted April 14, 2007 Share Posted April 14, 2007 Quote Link to comment Share on other sites More sharing options...
Homer Posted April 14, 2007 Author Share Posted April 14, 2007 Get it trailered to a Pro... then start enjoying it again I already tried Phoenix (twice) but Mark, though a fantastic mechanic is not so great on the electronics side of things. It's already cost me a couple of grand and I've gotten no where (and am fast running out of money). I've been thinking about Turbofit for a couple of days, but all the knowledgeable guys I know and trust have been less than complementary about their work. I can't see there's any other option though, they offer the "All in one" service for single owners, they have a good customer base and their prices are very reasonable. Arrghh!!! decisions, decisions.... Quote Link to comment Share on other sites More sharing options...
JamieP Posted April 14, 2007 Share Posted April 14, 2007 but all the knowledgeable guys I know and trust have been less than complementary about their work. Cant any of these so called knowledgeable guys sort it for you? Quote Link to comment Share on other sites More sharing options...
Homer Posted April 14, 2007 Author Share Posted April 14, 2007 Cant any of these so called knowledgeable guys sort it for you? They've tried hard and offered sound advice on what to do, but to be honest I don't have the enthusiasm to work on the engine anymore. The last time it went to Phoenix, I was willing to pay £000's for it to be fixed once and for all, but essentially nothing got solved (asside from an issue I already knew about). Now I just want to pay someone to fix the damn thing. Quote Link to comment Share on other sites More sharing options...
JustGav Posted April 14, 2007 Share Posted April 14, 2007 You still running an emanage? If so, I know you probably have tried this, but I'll suggest it anyway... Get access to another one and try it... Failing that... Do a double and triple check on the wiring looms, including end to end checks. Check the sensors are giving you the readings they should be.. Tideous stuff but something may come up... Assume all current info is flawed and make no assumptions. Quote Link to comment Share on other sites More sharing options...
JustGav Posted April 14, 2007 Share Posted April 14, 2007 Something else to consider... Is the stock ECU still working right??? Remember the emanage is a piggyback, and it can only respond to what is sent to it. Quote Link to comment Share on other sites More sharing options...
Homer Posted April 14, 2007 Author Share Posted April 14, 2007 You still running an emanage? If so, I know you probably have tried this, but I'll suggest it anyway... Get access to another one and try it... Failing that... Do a double and triple check on the wiring looms, including end to end checks. Check the sensors are giving you the readings they should be.. Tideous stuff but something may come up... Assume all current info is flawed and make no assumptions. 1) I haven't tried another EMB 2) I have not tired end to end checks on the main loom, but the EMB is seeing EVERYTHING it should be seeing 3) Every sensor I can think of has been tested or replaced. I agree though, its a 'back to stock' job and work from there... I just have no time for it anymore. IMO, the key is the injector duration and duty... SOMETHING has to be causing it to do that... Quote Link to comment Share on other sites More sharing options...
Steve Posted April 14, 2007 Share Posted April 14, 2007 When did it start doing this? Since mapping etc Have you checked and reloaded the map? Quote Link to comment Share on other sites More sharing options...
JustGav Posted April 14, 2007 Share Posted April 14, 2007 Homer, you on MSN? Got a few ideas for you and I might be able to spare a few multimeters and some time. Quote Link to comment Share on other sites More sharing options...
dandan Posted April 14, 2007 Share Posted April 14, 2007 If possible I'd definitely try another Emanage unit before reverting to stock. What exactly (if anything) were you doing on the car before this first cropped up? Were you doing anything near any footwell wiring, dash panels on/off or anything like that. I notice that two times out of three a plug change seemed to help - this cannot be the issue though (especially given the pulsewidths you mentioned). Do you know if the idle pulsewidth definitely dropped back to normal after the 2 out of 3 successful plug changes? How do these current afr's and pulsewidths compare to your normal cold start/ cold idling? Quote Link to comment Share on other sites More sharing options...
Homer Posted April 14, 2007 Author Share Posted April 14, 2007 When did it start doing this? Since mapping etc Have you checked and reloaded the map? This sudden refusing to idle/massive overfuel has happened 3 imes so far: 1st time: Right after I installed the injectors. It started working okay again after I changed the plugs. 2nd time: 6 weeks later I drive to a petrol station and filled up with fuel. As soon as i started the car again it did the same. Plugs were changed but it didn;t help. Car went to Phoenix on a low loader, after 2 weeks, they emptied the fuel tank, replaced the plugs (again) and changed the crank position sensor and it worked okay. 3rd time: 2 weeks later. The car was running okayish. Parked it up for the night, came out to start it the next morning and it was as before. The map has been reloaded and checked (changes to the map make little/no difference to the idle (though I can see the adjustements being made in the data log, the duration and duty remains massively mnore than it should be) . ECU has been reset. a couple of times too. Quote Link to comment Share on other sites More sharing options...
Steve Posted April 14, 2007 Share Posted April 14, 2007 Do you get any fault codes? Quote Link to comment Share on other sites More sharing options...
dandan Posted April 14, 2007 Share Posted April 14, 2007 It sounds like a sneaky little elec problem in your loom/coil packs/earths or possibly some sort of corruption in the EManage. What's the stock O2 sensor putting out? I know you're in the 10's but is the sensor actually reading rich voltage - just wondering if it's trying to tell the ecu to richen all the time as it's reading lean? What would the stock injector cold idle pulsewidths be, anyone have any ideas? Edit: Does the Emanage blue alter duration basd on battery voltage it's seeing? If so can that be disabled for testing purposes - extra duty could be being added if the emanage isn't seeing 12volts. Quote Link to comment Share on other sites More sharing options...
Homer Posted April 14, 2007 Author Share Posted April 14, 2007 If possible I'd definitely try another Emanage unit before reverting to stock. What exactly (if anything) were you doing on the car before this first cropped up? Were you doing anything near any footwell wiring, dash panels on/off or anything like that. I notice that two times out of three a plug change seemed to help - this cannot be the issue though (especially given the pulsewidths you mentioned). Do you know if the idle pulsewidth definitely dropped back to normal after the 2 out of 3 successful plug changes? How do these current afr's and pulsewidths compare to your normal cold start/ cold idling? Apart from the 1st time it happened, the other times I made no changes to the car. I had not been anywhere near the ECU area nor made any adjustments. It was just a case of parking the car with it working, then coming back and this massive overfuel starting. The injector duration and duty did drop back to normal after each occasion the problem was "solved". This is why I think this is the key to finding the cause. Quote Link to comment Share on other sites More sharing options...
Homer Posted April 14, 2007 Author Share Posted April 14, 2007 Do you get any fault codes? None at all (the bulb is working too ) Quote Link to comment Share on other sites More sharing options...
Steve Posted April 14, 2007 Share Posted April 14, 2007 Where are you located mate? Thinking you could try my EMB just to eliminate it. Quote Link to comment Share on other sites More sharing options...
Homer Posted April 14, 2007 Author Share Posted April 14, 2007 Where are you located mate? Thinking you could try my EMB just to eliminate it. Thanks mate, but I'm quite a way from you - Reading, Berkshire. Quote Link to comment Share on other sites More sharing options...
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