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 608 Posts Member #: 1106 Post Whore Hungerford, Berks |
29th May, 2010 at 08:37:50am
Evo, Thats interesting...
’77 Clubman build thread
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1267 Posts Member #: 831 Post Whore Montreal, Canada |
29th May, 2010 at 04:08:06pm
Going to 3.0.3u is a good idea.
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608 Posts Member #: 1106 Post Whore Hungerford, Berks |
29th May, 2010 at 06:51:16pm
A fairly busy day...
’77 Clubman build thread
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 8604 Posts Member #: 573 Formerly Axel Podland |
29th May, 2010 at 08:50:23pm
On 29th May, 2010 Graham T said:
Tomorrow I am going to try one squirt per engine cycle. I had a quick look at this today and on tick over, the engine sounded much smoother and the AFR's came right almost straight away... I assume that you mean the "hybrid" mode? If not then it should have only been firing the injectors one squirt per engine cycle per cylinder anyway. It may be a good idea to check that there is no AE ocurring to cause the spikes. I still occaisionally get spikes caused by AE at low revs. Check your pulse width trend. Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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608 Posts Member #: 1106 Post Whore Hungerford, Berks |
9th Aug, 2010 at 01:04:21pm
Still working on this. I have gone full circle during the last couple of months with variations on setup: Single injector timing, single fuel VE table; hybrid mode; dual injector timing, single fuel table and now I am back to dual injector timing and dual fuel VE tables.
’77 Clubman build thread
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 6745 Posts Member #: 828 Post Whore uranus |
9th Aug, 2010 at 07:29:48pm
am i reading this right ? the pulse widths seem to be very erratic ,shouldnt they be smoother ?have you a good steady map reading ?could this be causung the erratic afr's? Edited by robert on 9th Aug, 2010. Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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8604 Posts Member #: 573 Formerly Axel Podland |
9th Aug, 2010 at 07:53:26pm
Map reading looks steady enough.
Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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608 Posts Member #: 1106 Post Whore Hungerford, Berks |
9th Aug, 2010 at 09:38:17pm
The pulse width variations are generally in the region of 0.010 to 0.030 ms.
’77 Clubman build thread
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Forum Mod  1927 Posts Member #: 1761 Stalker Bristol |
9th Aug, 2010 at 10:19:46pm
Yes do go allong to MITP, i would like to see both those EFi cars of yours up close! |
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8604 Posts Member #: 573 Formerly Axel Podland |
10th Aug, 2010 at 08:47:23am
Did you ever do the complete swap of the wideband instruments to check repeatability? Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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608 Posts Member #: 1106 Post Whore Hungerford, Berks |
10th Aug, 2010 at 12:52:27pm
Yes I swapped complete units, controllers and sensors between exhaust branches.
’77 Clubman build thread
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8604 Posts Member #: 573 Formerly Axel Podland |
10th Aug, 2010 at 04:50:42pm
On 9th Aug, 2010 Graham T said:
I now have an alternator problem, which will be resolved this afternoon, when I pick up a new one. What was the problem with the alternator? As we are dealing with such small voltages on the AFR instruments, then any voltage spikes may affect the readings. How have you earthed the LC-1s? You need to ensure that the LC-1s and the MS unit share a good earth. Also use as many of the earths on the MS as possible, although some MS looms come with a combined earth anyway. Mine has several earth wires that I combined. Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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8604 Posts Member #: 573 Formerly Axel Podland |
10th Aug, 2010 at 04:57:19pm
I've just been reading your build thread.
Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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608 Posts Member #: 1106 Post Whore Hungerford, Berks |
10th Aug, 2010 at 05:12:23pm
yes 4 driver board. I Need to look at that to confirm configuration. ’77 Clubman build thread
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608 Posts Member #: 1106 Post Whore Hungerford, Berks |
10th Aug, 2010 at 08:40:07pm
On 10th Aug, 2010 Paul S said:
How have you configured it to drive just the two injectors? Under the advance menu, In sequential setup, I have: injector Drivers set to standard drivers Bank 3 and 4 input fields are greyed out. Under basic setup, in injector characteristics, I have: bank 1 set to: Injector opening time - 1.000 Battery voltage correction - 0.115 PWM current limit - 100 PWM time threshold - 25.6 Injector PWM period 66 Bank 2 is set to off ’77 Clubman build thread
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608 Posts Member #: 1106 Post Whore Hungerford, Berks |
11th Aug, 2010 at 08:59:00am
On 10th Aug, 2010 Paul S said:
On 9th Aug, 2010 Graham T said:
I now have an alternator problem, which will be resolved this afternoon, when I pick up a new one. What was the problem with the alternator? As we are dealing with such small voltages on the AFR instruments, then any voltage spikes may affect the readings. How have you earthed the LC-1s? You need to ensure that the LC-1s and the MS unit share a good earth. Also use as many of the earths on the MS as possible, although some MS looms come with a combined earth anyway. Mine has several earth wires that I combined. I noticed about a week ago that the voltage report by MS was starting to vary (11.6 - 13.7v). Each time I made an injection timing change, the result seemed random. I then noticed that the ammeter was intermittently showing no charge. I have fitted a new alternator and the voltage is back to around 13v, although, still not as stable as I would have thought. The LC-1s are earthed back to the MS. I bought a loom from DIYautotune. So I have combined a portion of the earths, running them down to the same bolt on the engine as the engine earth strap is bolted on with. On 10th Aug, 2010 Paul S said:
Did you ever do the complete swap of the wideband instruments to check repeatability? I repeated my tests of the LC-1’s last night, this time only having one input to the MS plugged in at a time, swapping the output to that channel when I changed between LC-1’s. It looks like you were correct and I do have an issue with one of them. In the below plots, the Inner AFR trace shows a constant 7.4 AFR, because there was no input connected to it. 
Controller 1 is the old controller that I removed from our turbo mini, so it’s about 3 years old. However, before I jump in and buy a new one, I’m going to do the same tests, but swap the power and earth wires between the 2 controllers, to doubly make sure that I do not have a wiring issue. I turned on Injector bank 2 in the injector characteristics window this morning and changed the settings to reflect bank one. By the time the engine had warmed up, I had to change the Injection timing 2 by +30degs to get the AFR’s level again. I’ll take it for a run at lunch and see what differences I get through the full load and rev range. ’77 Clubman build thread
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608 Posts Member #: 1106 Post Whore Hungerford, Berks |
11th Aug, 2010 at 09:08:47pm
At last.
’77 Clubman build thread
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857 Posts Member #: 1778 Post Whore Northants |
11th Aug, 2010 at 09:41:46pm
Much better |
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8604 Posts Member #: 573 Formerly Axel Podland |
11th Aug, 2010 at 10:07:24pm
Glad you sorted the problem.
Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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 (2)[/url] by [url=https://www.flickr.com/photos/150672766@N03/]Rod Sugden[/url], on Fli) 5988 Posts Member #: 2024 Formally Retired Rural Suffolk |
11th Aug, 2010 at 10:12:20pm
How much better do you want it..... :) Schrödinger's cat - so which one am I ??? |
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6745 Posts Member #: 828 Post Whore uranus |
12th Aug, 2010 at 09:06:24am
blimey ,big improvement ,was it the sensor controller ? Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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608 Posts Member #: 1106 Post Whore Hungerford, Berks |
12th Aug, 2010 at 11:33:19am
No, it was a combination of being an idiot and bad maintenance...
’77 Clubman build thread
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608 Posts Member #: 1106 Post Whore Hungerford, Berks |
12th Aug, 2010 at 07:07:26pm
’77 Clubman build thread
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857 Posts Member #: 1778 Post Whore Northants |
12th Aug, 2010 at 07:32:10pm
Great Stuff! |
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8604 Posts Member #: 573 Formerly Axel Podland |
12th Aug, 2010 at 07:39:17pm
That's better than we've ever got from mine. Congratulations.
Edited by Paul S on 12th Aug, 2010. Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
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