big_jimbob

Hey guys, as recommended I have got a obd cable and a copy of rom raider and have connected it to my 2001 bug eye wrx...

I took the car for a run with this connected and logged the results...

can anyone tell me what they mean and if everything looks ok?

Jim

scoobyboothy

iTrader: (1)

I'm still learning how to read the data, but from what I can see you seem to have alot of knock activity. I'm under the impression that this amount and the degree of correction is not good. However, I'm not an expert, so i don't eally know why it it's doing it, apart from modifications done and not mapped to suite.
splitpin may be able to decifer it more.

If you register on the romraider forum (free) and do the same there, after reading this link about logs http://www.romraider.com/RomRaider/I...eGuideToTuning

short logs at foot flat to floor is better for reading, and set it to start logging when you press the rear demister button for ease.
list all mods and your ecu type and wether you know if if it's been mapped

they should give you an opinion.

try and get hold of a copy of ecuedit version 1.2.0.72 . you can load your .csv file in this and view it as a graph.

benbrandwood

iTrader: (1)

Not sure that it matters here of course, but I'm sure you should note that you logged this data on your own private test track, well away from public roads and hence you were able to legally obtain the highest speed you've got in the log (83mph)

scoobyboothy

iTrader: (1)

there's no need to log vehicle speed anyway

big_jimbob

Yeh it was on private piece of land near my house, my uncle owns it....

im sure the speedo said higher than that anyway!

Jim

big_jimbob

Yep looks like iv got knock problems.....

Iv done a learning view map too (shows how the ecu compensates for knock)

here it is

big_jimbob

this is a follow on from my other post abot having probs on boost

petedotuk

There is a few spots that your ECU is pulling 6* of knock correction, 1 occasion looks like it was during a gear change (the revs dropped in that location)

You need to get a wideband and log AFR's so you can get better advice and 1 log in forth WOT from around 1500rpm to 6500rpm would be easier to read. Your boost seems to be unstable but then you are up and down the revs a lot so its hard to tell.

Has your car had a tune or has it got a boost controller fitted? At 1 point you hit 14psi and as soon as you lift off the throttle you get a little knock correction retard at 12psi. Its worth noting that the intake temps are always higher as soon as you come off boost (magnified on a TMIC) than they are when on boost so if you are running lean (due to no tune & above OEM boost level) then the higher intake temps can create knock.

I myself am still learning this tuning caper so it's not a professional view! lol

big_jimbob

Rite, well I will do a propper 3rd, then 4th gear log later and post it up....

AM i logging the correct things to determine my problem... anything that I have logged that I dont need or anything i havent logged that I do?

Jim

scoobyboothy

iTrader: (1)

make sure you log throttle plate angle and take a gander at the romraider guide to logging, it gives you an idea of what to log, to give the ones the know a bit more of an idea

Glowplug

iTrader: (8)

I can't even get bleeding RR to install.

Any one else running it on Windows 7 64bit succesfully??

H2o-uk

iTrader: (1)

just out of interest what type of ODB cable are you using ? I have a VAG COM Style ODB cable, but im struggling to get RR to read the ecu. I had it working once but not managed since, I don't know whether its my cable thats knackered.

Thanks

Myles

iTrader: (40)

I'd be interested to know also, I've just bought the cable and have got the .zip file for romraider but haven't extracted it yet.

Glowplug

iTrader: (8)

I made my own cable. My car has the SSM socket not a OBDII. Cable works fine with SSM and Evoscan but was wanting to have a look at RR, it just will not install. Ran as admin, in compatability mode, uninstalled Java. I'm proper atm.

jura11

iTrader: (7)

I'm running RR on my laptop(W7 64bit) without problem,just try these steps
http://www.scoobypedia.co.uk/index.p...shingFAQ#toc39
Look at this question:I’m having problems installing RomRaider with Windows Vista/Windows 7. What am I doing wrong?

big_jimbob

Yeh im running it on vista with a Vag.com OBD cable....

Hope this helps

Jim

bengo

iTrader: (17)

The learning view looks OK, your ignition multiplier is at 16 and the knock at high revs is nothing major. Your AFs look a little out in open loop (C&D Values). Have you got a wide-band because you'll need this to scale you MAF?

What modifications have you done to the car & what fuel are you using?

You'll need a tactrix cable and the correct flash block if you want to start modifying your rom.

dynamix

iTrader: (3)

You're not logging the right information to be able to tell whether there is anything going on.

The learning view is more revealing and points towards some changes that could possibly have been made in the induction system like and induction kit perhaps ? and that is pushing it lean. Possibly explaining the 2.11 degrees of timing retard that has been learnt at the top end of the load scale.

What is the objective behind the logging - is there a running issue?

big_jimbob

Yes there has been a running issue that I have been trying to capture, just seems that now iv got the cable and software that the issue has gone away!!

There has been a big flat spot/hesitation between 4-5.5k rpm...

Im not interested in re mapping the car myself, I just wanted to know if there was a problem and if i could find it......

There is a sports pannel filter fitted to the car and a prodrive back box. Apart from that its standard but I dont know if its been re mapped before hand.... any way of telling?

Jim

dynamix

iTrader: (3)

Def not mapped at that boost level IMO.

Possibly a weak fuel pump then. They are prone to going on the bug wrx's

Log:
- rpm
- load
- throttle
- maf g/sec
- fuel correction 1
- fuel learning 1
- map (pref in bar)
- injector duty %
- feedback correction (AK) .. not sure how romraider specifies these as I dont use it.
- fine learning (AP) .. not sure how romraider specifies these as I dont use it.
- ignition timing

That should give a good starter

big_jimbob

Ok not a problem I will do this tonight if thats possible...

how is best to do the run, in 3rd from 2k-redline?

Jim

Glowplug

iTrader: (8)

How did i not see that!

Thank Jura11.

jura11

iTrader: (7)

Sorry here is link http://www.scoobypedia.co.uk/index.p...shingFAQ#toc39

Glowplug

iTrader: (8)

dynamix

iTrader: (3)

Spot on - that should give an idea of what is going on.

try and do a few runs on the same log file so that it is more representative of a trend rather than a one off. (unless of course there is a lot of det activity)

big_jimbob

Rite, well since i have fitted the boost solenoid the car was still running rough on boost for about 50 miles.... then it just came good!

and has been good now for over 100 miles....

Any idea why this could be?

Pulls hard in all gears
and no hesitation...

Nothing touched since solenoid, not even had the bonnet up.....

Could it have been ****i fuel? (i have refueled with sainsburys 99octain stuff, was on tesco momentum...)

Thanks
Jim

dynamix

iTrader: (3)

sainsburys dont do a 99 ??

scoobyboothy

iTrader: (1)

sainsburys do 97ron,

you could have had a dodgy batch of momentum, as this isn't true 99ron fuel. It's got additives in to make it 99ron. My car has paddys when i use tesco stuff rather than v power!! it feels smoother on v power

big_jimbob

Very strange then, It must have been Sainsburys super unleaded at 97 ron, sorry.

It just seems strange that I changed the boost solenoid then 50ish miles later the problem got better... any chance the ecu took this time to either realise something had changed or to realise boost levels were back to normal?

Jim

dynamix

iTrader: (3)

Have you logged the car using the full datafields I suggested?