Flickering blue light ?
Whilst driving at varying throttle, I have noticed that 'B' light
flickering as I slowly apply more throttle from cruise. If I continue to apply more throttle the light will go out briefly and then come back on solidly. There may also be a short orange blip from what I believe is the water level LED. The tank is full so not 'low' The setup of the gauge may not be perfect in terms of the number of bars lit while spraying, but I do get 4-5 bars when I am hard on the gas. In all other respects the system is working fine. So, does the flickering indicate I need to do some adjusting, or is it telling me that there is a problem ? Cheers... jondee86 |
Re: Flickering blue light ?
Reason I ask is that a month or so ago it was doing this flickering and one day
after I parked and turned the key off, I noticed that the pump was running ?? After investigating I found that the pump relay contacts had burned out and the relay was not always disengaging when powered down. Replaced the relay and no more flickering for a couple of weeks. Now it has started happening again. So I'm wondering if the flickering light correlates with the pump relay getting a "flickering" control signal ?? My injection initiates at around 14% IDC which is only just above my highway cruising speed. If I get a bit of head wind or reach a slight rise the system will be hovering on the verge of spraying. Logs show flowmeter counts of 1 or 2 for a few seconds sometimes before I either accelerate of back off the throttle. Could pump pulsation at very low injection rates cause the flickering light ?? Cheers... jondee86 |
Re: Flickering blue light ?
alter the THRES a little later.May be it is a bit too early?
question: 1. the serial number of the system 2. where is the pump installed? |
Re: Flickering blue light ?
I have been thinking about setting the THRES a bit higher as my current
bypass valve setup seems to be keeping inlet temps under control much better than the earlier setups I had. Are the small pots fully variable or do they have to be set at the marked positions ?? Can I increase by half a click instead of full click ?? The pump is installed in the trunk with the motor on top and the pump head level with the bottom of the tank. The pump has a dedicated power supply from the battery directly to the pump relay. I don't have the serial number to hand, but it is the HFS3-v3.1 system and your invoice is #2171 Cheers... jondee86 |
Re: Flickering blue light ?
Found it it was May 2016 when you ordered the system.
You wrote: Are the small pots fully variable or do they have to be set at the marked positions ?? Can I increase by half a click instead of full click ?? answer: it is continuously variable. where did you wire the little red wire on the grey connector? |
Re: Flickering blue light ?
The small red wire on the grey plug is connected to a common relay switched
12V power supply that is activated when the key is switched to the ON position. This relay also supplies switched power to... 1. the engine ECU 2. an Innovate LC-1 WBO2 and DB gauge 3. a small relay coil that is switched to ground by the ECU to generate a back emf voltage spike for drive my tachometer 4. the ISCV 5. the HFS-3 control unit 6. the HFS-3 alarm relay (white wire grey plug) I use this to turn on a LED on the dash to tell me that the system is spraying (via the brown wire grey plug) The green wire on the grey plug is connected to the ECU side of injector #4. Previously this was connected to an ECU AUX output programmed to mimic IDC. But when I upgraded the injectors and went to full sequential I needed the AUX output as an injector driver. As I recall, I did change some settings (THRES and GAIN) on the HFS-3 at the time I fitted the new injectors, so it is quite possible that I have messed up the settings. I will alter the THRES setting tomorrow and make a test to see if there is any change. Cheers... jondee86 |
Re: Flickering blue light ?
27-02-19 existing setting as base. Injection initiates ~ 14% IDC. Flickering.
28-02-19 plus 1/2 click on THRES. Injection initiates ~ 17% IDC. No change. 01-03-19 plus 1 click on THRES. Injection initiates ~ TBA. Test deferred. Deferred raising THRES as I need to get on the motorway to monitor MAT vs IDC at constant speed. Will do that when I get a chance. But I did have a short drive to try a few different settings of WL and WH. Tried them both at 12 o'clock and then with WL full ACW and WH full CW... neither affected the flickering, but did change the failsafe behavior. My log shows that the system is becoming active (showing flowmeter output) at IDC levels below the nominal 17% IDC initiate THRES setting. In several places I can see flowmeter output values of 1, 2 or 3 continuously for periods when the IDC is at 13-14%, particularly when the throttle is being gradually opened. With more rapid opening of the throttle the flowmeter indicates a "clean" turn on and a clean cutoff at around 17-18% IDC. This suggests that the pump turns on before the FAV becomes active, and that "leakage" past the valve is ocurring ? Does the pump have some hysterisis to make sure it is up to speed by the time the FAV initiates ? I also noted that the water level light is illuminating for around 3 seconds pretty much every time I apply a decent amount of throttle to initiate spray. But I can't tell if the onset of spray is delayed until the light goes out ? If it helps, the only thing I haven't done that may be pertinent, is add the solder blob to change the flowmeter resolution. I am running two jets (1 x 0.7 and 1 x0.4B) with the 380cc/min FAV restrictor. Cheers... jondee86 |
Re: Flickering blue light ?
Link FDC and tell me if the gauge displays full bars at WOT. I like to know of you are using full FiDC or not. This result of the test will tel me what is the best approach to your settings.
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Re: Flickering blue light ?
There is a video showing what the gauge does here (FIDC link installed)...
https://youtu.be/HqtZys_-PwY That is a second gear pull WOT to fuel cut at 8000rpm. Sorry about the camera being upside down but I had to attach it to the handbrake and couldn't get it properly lined up. You can see the lights OK though :) Here is the data from my log of the run. RPM vs IDC vs flowmeter count 5000...42.6...28 5500...49.8...39 6000...57.6...40 6500...63.7...42 7000...68.6...44 7500...76.8...43 8000...80.0...43 Cheers... jondee86 |
Re: Flickering blue light ?
you must not allow the bars go beyond 6 bars. Once the failsafe triggers, the boost will reduce and the B light will go blink. Try reading the user manual. Learn the set up the system yourself.
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