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Practical Standalone Tuning: Step 5: Initial Startup

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Step 5: Initial Startup

03.29

00:00 - With our configuration and testing all complete now, it's finally time to start our engine for the very first time.
00:06 During this particular phase, what we're going to be doing is we're going to be taking note of the lambda value here on our dyno screen.
00:16 And what we're going to be doing at the moment is just broadly getting the engine running, we're not going to be too worried about an exact air fuel ratio at this point.
00:26 I'm going to be happy as long as the engine is running somewhere in the region of perhaps 0.9 lambda to perhaps lambda one.
00:33 And in order to do that, what I'm going to do in my efficiency table here is just highlight a broad area of numbers in which the engine is going to be operating, and this is going to allow me to make very quick, coarse changes to that entire block.
00:49 So at this point, I'm not really too worried about making specific accurate changes to individual cells, I just want to physically get the engine running, so that I can check and make sure that mechanically everything is sound and make sure that everything is working as I expect.
01:05 Let's get our fuel pumps up and running and we can try starting our engine.
01:10 Before we do actually start the engine, we also need to understand that at this point with little to no tuning in the ECU, we may need to use the throttle pedal in order to keep the engine running.
01:24 So I'm already expecting that, I'm going to be using my foot on the throttle in order to try and keep the engine running once it does crank and start.
01:32 So let's get it started up.
01:42 Now straight away the engine's actually started very easily which is great.
01:45 We can see, looking at our lambda that we're a little bit rich, we're sitting at about 0.85, actually once we bring the RPM back down, we're not even too bad, about 0.90.
01:58 So we can remove a little bit of fuel from this entire block of numbers, get us down into the 0.9.
02:05 OK so everything's looking really good at the moment.
02:08 The other thing that's always a good idea to check at this point is if we bring up our run time values display and we go through to our general tab, we can check and make sure that our battery voltage is adequate and that our alternator is charging and straight away we can see that at this point, we don't actually have any charging voltage from our alternator, we're sitting at 11.5 volts.
02:31 Now occasionally what this will require is the RPM to be brought up in order to get the alternator charging.
02:40 So I'm just gonna see if I can rev the engine and get the alternator charging now.
02:48 OK so we can see that a quick blip of the throttle and bringing the revs up there despite the fact that our fuel map is certainly not tuned, has got our alternator charging, we're now at 14.1 volts.
03:00 I'm still keeping the engine operating physically with my foot on the throttle.
03:03 We can see also that now our lambda has dropped a little bit lean.
03:09 So again I've still got that entire block of numbers highlighted, I can just bring up the entire block so I'm back in my range of 0.9 to lambda one.