Practical Reflash Tuning: Step 2: What Modifications Have Been Performed?
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Step 2: What Modifications Have Been Performed?
01.49
| 00:00 | - The next step in our tuning process is to investigate what modifications have been made to the car. |
| 00:06 | This is a really important step because overlooking any modifications at this point can have a really big impact on the way our tune proceeds. |
| 00:16 | We're also going to want to know what modifications, if any, have been performed so that we can make sure we create clear accounting for these modifications in our tune. |
| 00:27 | And this is going to save us time and ensure that we aren't overlooking anything critical. |
| 00:32 | The two key elements that I'm interested in here in particular are the fuel injectors and the MAF sensor. |
| 00:39 | And in this case, our job's incredibly easy because this car is 100% stock. |
| 00:44 | So there's no modifications that have been made to the car at all. |
| 00:48 | This means we're running the factory injectors, it also means we're running the factory MAF sensor, the factory airbox, and even the factory air filter element. |
| 00:58 | What this means is that we should be able to rely on the MAF scaling being accurate, and hence the load calculation that the ECU makes should also be accurate. |
| 01:08 | This is going to be helpful when it comes to dialling in our air-fuel ratio in open loop. |
| 01:15 | Now, for this particular worked example we're going to be looking at optimising the tune of a stock, standard car, and further worked examples on the same car. |
| 01:24 | We will be fitting a new intake system and we're going to be looking at rescaling both the MAF as well as the speed-density system and the ECU. |
| 01:33 | Lastly we will also be applying a one-bar speed-density patch to the ECU and tuning the car without the MAF sensor. |
| 01:43 | For now though, we can carry on and begin setting up our ROM. |
