iani Posted December 8, 2019 Author Share Posted December 8, 2019 I had some assistance today, we improved the exhaust pipe joints, the one near the collector wasn't on far enough, it moved forward by another 1.5cm or so. we then cleaned & refitted the O2 sensor before rebalancing the TB's. I've just driven the car for 25 miles, for most of that time it ran ok, I'm still running in a new engine so keeping the RPM down and not labouring the car. The O2 showed as being on the lean side most of the time, improving under load when it would hover around 14.7 +/1 0.5 or so. There didn't seem to be a lot of power available however, I would describe the throttle response as rather flat, when I came onto local roads on the way home it wasn't idling well either and I've put the car back in the garage now, I don't know where I go from here with it, I'm not sure it's up to a drive to Emerald. I am going to try another decent O2 sensor, I'll get one from 14.7 to match the controller, I may well have knackered the original by having wired it up incorrectly. Link to comment Share on other sites More sharing options...
spitfire6 Posted December 8, 2019 Share Posted December 8, 2019 14.7 is too low under load? You have setup the accel enrichments: Snap WOT is most rich? Cheers, Iain. Link to comment Share on other sites More sharing options...
iani Posted December 8, 2019 Author Share Posted December 8, 2019 25 minutes ago, spitfire6 said: 14.7 is too low under load? You have setup the accel enrichments: Snap WOT is most rich? Cheers, Iain. I haven't set it up Iain, Emerald did it remotely, that said, they did it before I sorted the air leaks, the O2 readings are much more stable now so they might need to do it again. Link to comment Share on other sites More sharing options...
spitfire6 Posted December 8, 2019 Share Posted December 8, 2019 Just now, iani said: I haven't set it up Iain, Emerald did it remotely, that said, they did it before I sorted the air leaks, the O2 readings are much more stable now so they might need to do it again. Emerald had a remote access to your pc connected ecu or just the ECU? While driving? Cheers, Iain. Link to comment Share on other sites More sharing options...
iani Posted December 8, 2019 Author Share Posted December 8, 2019 Just now, spitfire6 said: Emerald had a remote access to your pc connected ecu or just the ECU? While driving? Cheers, Iain. They remote into your pc, connected to the ECU, car was in the garage though, not driving. Link to comment Share on other sites More sharing options...
spitfire6 Posted December 8, 2019 Share Posted December 8, 2019 No modified RS232 cable, modem & telephone cable then? LOL. Are you logging all for them? Please keep us updated. Are you using spark advance for idle control? Thanks, Iain. Link to comment Share on other sites More sharing options...
rogerguzzi Posted December 8, 2019 Share Posted December 8, 2019 Hello Iain I give my micro squirt 6% authority and it seems to work ok I can see the AFR reading alter if driving on a steady throttle (I have not set my AFR base lines to lean) The way I see it if the Lambda sensor is not in a controlled loop it is just a visual display and partially defeats the EFI advantage!(just my take on it) Roger Link to comment Share on other sites More sharing options...
iani Posted December 8, 2019 Author Share Posted December 8, 2019 49 minutes ago, spitfire6 said: No modified RS232 cable, modem & telephone cable then? LOL. Are you logging all for them? Please keep us updated. Are you using spark advance for idle control? Thanks, Iain. The idle control is currently using only the IACV which gives a target RPM based on a table set by Emerald.nThe "Idle stabilisation using Ignition advance" is currently disabled, one of Emerald's documents states to leave this disabled whilst tuning, I might try it out to see if it improves things. Link to comment Share on other sites More sharing options...
spitfire6 Posted December 8, 2019 Share Posted December 8, 2019 Hi, If you have IACV avoid the ignition stabilization. Unfortunately I have no IACV & use a narrow band of the idle control spawn. Cheers, Iain. Link to comment Share on other sites More sharing options...
Nick Jones Posted December 8, 2019 Share Posted December 8, 2019 16 minutes ago, rogerguzzi said: Hello Iain I give my micro squirt 6% authority and it seems to work ok I can see the AFR reading alter if driving on a steady throttle (I have not set my AFR base lines to lean) The way I see it if the Lambda sensor is not in a controlled loop it is just a visual display and partially defeats the EFI advantage!(just my take on it) Roger I kind of agree..... though after recent experience on our Europe trip, you don’t want to give the controller more than about 5 - 6% authority as if something happens to the sensor system more than this might render the car undriveable. Mine has 5% and when the sensor failed the ECU was being told it was way rich and leaning to the 5%max. The failure was intermittent at first any you could certainly tell the difference. Link to comment Share on other sites More sharing options...
spitfire6 Posted December 8, 2019 Share Posted December 8, 2019 Hi, any form of feedback is ill advised until the engine is running fine. Not easy set feedback of fueling with TPS. But that's another day. Cheers, Iain. Link to comment Share on other sites More sharing options...
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