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Don@Lasotaracing.com

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Instructions for Sending Data to LaSota Racing

You’ll need a laptop. If using a laptop, be sure the XCal 2/X3’s USB drivers are installed and LiveLink is also installed.

Connect the X2/X3 to the vehicle via the OBD 2 port.

 Be sure the Main Screen is showing on the X2/X3. Connect the X2/X3 to the laptop via a USB cable and run LiveLink (you can skip all this if you can do on-screen logging).

Start the vehicle. Click on the “Graph” Icon and open the various “trees” to check the following PIDs (datalog items) use only upper case PIDs unless they are not available, then use lower case PIDS:

Heading	PID
Environment	Intake air temp or on factory blown cars downstream air temp
	Coolant Temp
Fuel	Fuel Source or if not available Open Loop Flag
	Short Term Trim Bank 1
	Short Term Trim Bank 2 (not available on single downpipe vehicles)
Fuel Pump	FP Duty Cycle (‘99 and up only)
	Injector pressure drop (‘99and up only)
Idle Control	Idle Air Integrator or ISC Intergrator
MAF	MAF Counts or MAF Voltage
Misc	Battery Voltage
	RPM or Engine Speed
Spark	Spark Advance or spark
	Spark Source

The PIDs may be in a different order and may be labeled slightly different.

Next click OK and click the green start logging button. Let the vehicle idle until the collant temp has reached at least 160* and once the short term fuel trims start giving good data (they will switch back and forth). The free rev to 1500 RPMs and hold it for 20 seconds, do the same thing at 2000, 2500, 3000 and 3500 RPMs. Click on the red stop logging button. Stop that log, and save it call it Free Rev Log.

Next on a dyno (if you have one) get it in 1:1 gear and starting at 1500 RPMS or so, slowly drive it to about 4000 RPMs, without going to WOT – save an A/F and X2/X3 log and Save it and label it as Loaded Revs. Or do this on the street – carefully, with a helper, drive it on a deserted road, in second gear slowly give it gas until about 4000 RPMs. Submit the A/F Log and the X2/X3 log. Save the files and send them to Don@lasotaracing.com. Be sure to indicate WHICH file was used for logging in case you received more than one tune. When you do the wide open throttle logging, you should also have the X2/X3 hooked up as described, save the WOT log and submit that with the A/F log. Look at the instructions for sending data for chip reburning below for info on how to do that. It will be the same, except you’ll also have the X2/X3 connected to the vehicle on OBD 2 vehicles.

Wide open throttle – this is best done on a dyno. But if you have a long deserted stretch of highway and a friend in the car and you will not exceed the speed limit or be unsafe, you can do it on the street. Do either third or fourth (in a 5 speed – 2-3 in an auto) gear runs, start at 2500 or so, don’t let the engine lug though. The target A/F at WOT is usually 11.5:1 for a blown vehicle and 12.5 for a NA vehicle. Stop the run if the A/F goes leaner than 12.2-12-3:1 (blower or turbo) 13.3 or leaner NA this can cause engine damage. It may be lean at the beginning of the run while the fuel transitions to open loop, this is OK, but by about 3500, it should transition. Stop it if it goes lean up top too.  STOP the run if you hear ping or detonation.

Instructions for Sending Data to LaSota Racing for Reburning a Chip

The four tunes sent burned onto the chip are for testing purposes. One or more may run great or they may not run good at all. Since every car and intake system is different, this is to be expected. We sent the four files most likely to work best – they were derived from SCT recommended base files and actual tunes done from cars with a very similar combo to your car. They are NOT intended for general driving purposes, mainly because adaptive control and closed loop operation are shut off. This makes it far easier to get the correct feedback so that a reburn can be made closer. Note: it may take 2-3 mailings back and forth to get close. Once it’s OK, I’ll turn all that back on.

First off, follow the instructions for chip install. Clean the processor as outlined – 95% of the reasons for chips not working is processors not cleaned properly.

Start the car on Position zero – it may or may not run good, it it seems to idle OK, then proceed with the test, if not. Stop the car, and move the switch to position “1”, then try again. NOTE: the instructions say you can switch programs on the fly, but in our experience, this stalls the car sometimes and may make it difficult to restart so turn the key off when switching programs. Proceed with tests in all positions.

You must have access to a wideband for these tests. It also is imperative to record MAF voltage (from the blue striped wire on the MAF connector, not the red one on the end fopr Zeitronix widebands) at each step. Many widebands allow you to log a “5v User Input” if you can do this, this would be best so the exact A/F and MAF voltage are recorded together. If not, use a volt meter to record MAF voltages at each step. It may be difficult to do this at the WOT parts. So it may be better to have a buddy in the car logging while you drive it – try not to speed or get in a wreck… If you cannot do voltages, please note the tune will be much more difficult to get perfect. Please fill out the forms and any datalogs and email scans of them or just send an email with the data .