Discussion
Has any one successfully used a scan tool with the obd port to access the ecu data? I have an ESP automotive scan tool (ELM232)that worked fine on my previous vauxhall, I keep getting a bus connection error with the Monaro ??
I have tried several different software packages with the same error
I have tried several different software packages with the same error
Yes if you have an LS2 it uses the CAN protocol over the previous VPW protocol.
efilive v2 handles both no problem. I helped Allan at WRC get his new v2 up and working for the twin turbo LS2 they did recently. Both protocols use the standard OBDII port.
PM me for more info if required.
efilive v2 handles both no problem. I helped Allan at WRC get his new v2 up and working for the twin turbo LS2 they did recently. Both protocols use the standard OBDII port.
PM me for more info if required.
as ringram can't advertise for himself thought I'd say he was excellent to deal with and continues to be if you have any questions re the EFI kit. I took advantage of the discounted price on v1 for the ls1 - useful even just as a logging tool for when you've got the car on the rolling road for example. Lets you see exactly whats going on with the engine management.
NB from what I understand though if you have a Wortec tuned car then they lock access to the engine management to protect their copyright on the tune they upload, be up to them whether they allowed you access to tinker with it. Sure one of their dealers will clarify.
NB from what I understand though if you have a Wortec tuned car then they lock access to the engine management to protect their copyright on the tune they upload, be up to them whether they allowed you access to tinker with it. Sure one of their dealers will clarify.
The scan tool will scan any PCM locked or unlocked, its only writing changes that are blocked. The PCM is always open for reading engine parameters and logging etc.
If you want to change the tune, then you are correct, though its possible to unlock a locked pcm if the key is lost or the new owner doesnt know who did the tune etc.
I believe most UK aftermarket LS2 tunes may be unlocked, but cant 100% confirm that.
If you want to change the tune, then you are correct, though its possible to unlock a locked pcm if the key is lost or the new owner doesnt know who did the tune etc.
I believe most UK aftermarket LS2 tunes may be unlocked, but cant 100% confirm that.
Yes, but not with the scan version. You need the full tune and scan version. Which is actually the same unit, you just unlock the tune functionality with a license key.
Its a bit less than 2x the cost of the scan unit. You also get 2 PCM licenses for it, so could tune 2 vehicles. However you can scan as many as you want there is no limit to how many you scan. Therefore going halves with someone else is an option.
Here are a couple of pics from the scanner for an idea on what info you can get. There are litterally hundreds of parameters you can log.
Its a bit less than 2x the cost of the scan unit. You also get 2 PCM licenses for it, so could tune 2 vehicles. However you can scan as many as you want there is no limit to how many you scan. Therefore going halves with someone else is an option.
Here are a couple of pics from the scanner for an idea on what info you can get. There are litterally hundreds of parameters you can log.
Edited by ringram on Friday 2nd February 15:20
ringram said:
Yes, but not with the scan version. You need the full tune and scan version. Which is actually the same unit, you just unlock the tune functionality with a license key.
Edited by ringram on Friday 2nd February 15:20
This is a step forward in the right direction, I'll be thinkin about getting one of these! The Monaro is mapped to use 95 ron fuel max, advancing the ignition map is then possible for using 97 / 99 ron fuel
Edited by Gelf VXR on Friday 2nd February 15:28
For an idea on what HSV changed to get extra power in their 285kw and 307kw LS2 stuff take a look at the tune on www.holdencrazy.com you can open them and take a look with the software for efilive which is free to download and play with from www.efilive.com downloads page.
There is also a page of modified tunes for ideas on supercharging, nos etc.
There is also a page of modified tunes for ideas on supercharging, nos etc.
ringram said:
For an idea on what HSV changed to get extra power in their 285kw and 307kw LS2 stuff take a look at the tune on www.holdencrazy.com you can open them and take a look with the software for efilive which is free to download and play with from www.efilive.com downloads page.
There is also a page of modified tunes for ideas on supercharging, nos etc.
There is also a page of modified tunes for ideas on supercharging, nos etc.
Which i have.
How come when i look at the two boosted tunes (Whipple Supercharged @7psi Non-Intercooled, 42lb Injectors, Whipple CAI.tun and ls1_magnacharger.tun) - the MAP for the main VE doesn't go above 105Kpa - am i missing something? - is this not a MAFless tune?
The Whippled Silverado still uses the standard GM operating system, which only recognises manifold pressure up to 105kPa. EFILive also includes a number of custom operating systems, which add, amongst other things, support for MAP up to 3 bar. Have a look at the two HSV tunes on HoldenCrazy, which use customs OS's. The section 'EFILive Custom Calibrations' will be populated in these tunes and you can see what other goodies are available.
You can also learn loads from the EFILive forum.
You can also learn loads from the EFILive forum.
Nice question.. There are many ways to tune, obviously the ideal way for serious FI is speed density with a custom OS to map out 105kpa+ ranges.
The modified tunes are only what people have submitted, as you say the ones you mention all look like maf based ones, pretty much like what most FI installs locally in the UK are.
When kpa exceeds 105 the PCM will use the 105 column from then on as a average guess, hence in one of the tunes you mention the VE table has extra high values there.
The same applies for spark etc, though spark goes much further into boost as most standard engines dont go over 0.80g/cyl of air. (See the high/low octane table) If you open eflive software one of the folders has the custom OS empty tune files in it. You can open them and you will see the extra custom tables that are there for up to 285kpa as well as spark adjustment etc. I know smiler is running a custom os for 2bar mafless. I think he is pretty pleased with the results over the standard os's.
I run custom os5 myself which can support maf based fueling as well as mafless and alpha-n (which is based only on rpm and throttle position), it also supports NO2 and forced induction and the security/valet mode where you can fix max rpm and road speed with a basic switch.
The custom os's are basically modified stock operating systems, that have a few extra tables and tweaks to extend the factory functionality.
The modified tunes are only what people have submitted, as you say the ones you mention all look like maf based ones, pretty much like what most FI installs locally in the UK are.
When kpa exceeds 105 the PCM will use the 105 column from then on as a average guess, hence in one of the tunes you mention the VE table has extra high values there.
The same applies for spark etc, though spark goes much further into boost as most standard engines dont go over 0.80g/cyl of air. (See the high/low octane table) If you open eflive software one of the folders has the custom OS empty tune files in it. You can open them and you will see the extra custom tables that are there for up to 285kpa as well as spark adjustment etc. I know smiler is running a custom os for 2bar mafless. I think he is pretty pleased with the results over the standard os's.
I run custom os5 myself which can support maf based fueling as well as mafless and alpha-n (which is based only on rpm and throttle position), it also supports NO2 and forced induction and the security/valet mode where you can fix max rpm and road speed with a basic switch.
The custom os's are basically modified stock operating systems, that have a few extra tables and tweaks to extend the factory functionality.
It just means you cant tune the engine ideally. It still works, but if you decided to run more or less boost than it was initially tuned for....you will create problems.
Ive maxed out map sensors on loads of cars. As Richard says, just use the final row for whatever boost you use.
Ive seen me run as much as 1.8 bar on a map sensor that maxed out at 1.15 bar lol.
Far from ideal, but its free and it works.
Ive maxed out map sensors on loads of cars. As Richard says, just use the final row for whatever boost you use.
Ive seen me run as much as 1.8 bar on a map sensor that maxed out at 1.15 bar lol.
Far from ideal, but its free and it works.
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