Help translating logs!

[B3NPM_Cupra]

Could somebody who knows what they are looking at tell me if all is ok with theese logs, e.g intake temp, mass aiflow etc. had the engine light on, maf came up but cleared it and hasnt come back. i keep loosing boost (peaks at 7 no higher instaed of 22) any help would be greatfull. taken in 3rd by the way if that helps, Boost 9 Timing 7 revo settings, on a K03

Group A:	'020			
	
TIME				
STAMP	 CF	 CF	 CF	 CF
0.02	0	3	0	3
1.79	3.8	4.5	6	3.8
3.74	3.8	3.8	5.3	3
5.59	3	3	3	0.8
7.32	0.8	0.8	0.8	0
9.18	0	3	0	0
11.01	3.8	6.8	0.8	5.3

Group B:	'004			
	RPM	Voltage	Temperature	Temperature
TIME				
STAMP	 /min	 V	°C	°C
0.59	1840	13.44	84	44
2.39	2280	13.44	84	39
4.4	3040	13.44	84	39
6.19	3880	13.37	84	39
7.91	4600	13.44	84	40
9.84	5040	13.3	84	41
11.6	5400	13.37	84	44


Group C:	'003			
	RPM	Mass Flow	Load	Ign. Timing
TIME				
STAMP	 /min	 g/s	%	 °BTDC
1.19	1960	31.08	98.4	14.3
3	2480	56.67	100	3.8
5	3320	93.36	100	1.5
6.71	4080	108.39	100	5.3
8.5	4840	120.5	100	9
10.4	5080	48.19	26.7	36.8
12.2	5560	121.61	100	6

 

[StanTheMan]

maf is ****ed, probably causing the bad cf's

but the data youve got is bad, not range.

 

[B3NPM_Cupra]

What do you mean bad not range? sorry..i really havnt got a clue what im doing with vag-com to be honest.

 

[PhilW]

Yeah maf is toast. Timing looks bad but as said above might be to do with the MAF. Or could be over optimistic timing advance, shitty fuel and plugs.

Get a new maf tho if its your car.


Do one block at a time. 4th gear from low down to redline. The time stamps have large gaps so you dont really get a full check on whats goin on.

 

[StanTheMan]

It appears youve logged it in something like 2nd gear?

You need ideally to log it in something like 4th, start @ 2000rpm and log until the redline (you will be doing 120+mph though at that point)

Will give you much more data and load the car right up.

 

[B3NPM_Cupra]

it was in 3rd....ill do another one later in 4th and try that. just so im learning here what makes you think the maf is toast?

 

[StanTheMan]

group c mass flow g/s should be showing peak figures of 140+

 

[B3NPM_Cupra]

ahh i see...ignor the 48.19 rteading..i had to let off a fraction. ill go out in a short while ang log it in 4th and post up the log. do the intake temps look ok? Thanks for the help by the way guys!

 

[StanTheMan]

You cant let off, the log is then useless.

Intakes look fine

 

[B3NPM_Cupra]

thanks stan for the help, ill find a better road and log in 4th later and repost. i have been told that the CF's should be no higher than 3 is that right? and it could be due to the fact my revo setting is on boost 9 on a standard k03.

 

[StanTheMan]

Ive found a happy medium of b7t7 with tesco's 99 petrol

Pulls 0'cf's across the board

 

[B3NPM_Cupra]

sounds good, car still pull well though, worried about loosing power if i lower the boost setting, plaease tell me if im being stupid and it does not work like that!

 

[Forbez]

As phil mentioned try logging one at a time, to lower the sample rate.

 

[B3NPM_Cupra]

Cheers, will do that later on. cheers for the help

 

[T7ODD]

Hang on... if it's boosting at 7psi then that MAF reading would be about right as you're back on standard power. Is the Revo definitely on (faulty switch?) or is it in limp mode?
Hve you tried unplugging the MAF to see if you get more boost? I guess a faulty MAF could also be reducing the boost.
Did you clear the faults and then reset the ecu by disconnecting the battery? I had this problem before - cleared the faults in Vag-Com but it stayed in limp mode until I reset the ecu.

 

[StanTheMan]

boost guage could be innacurate, mine boosts to 9psi with revo in stock.

 

[Forbez]

Da Defi one?

 

[StanTheMan]

Da Defi one?

nah, my old one used too... defi seems fine

 

[B3NPM_Cupra]

Hang on... if it's boosting at 7psi then that MAF reading would be about right as you're back on standard power. Is the Revo definitely on (faulty switch?) or is it in limp mode?
Hve you tried unplugging the MAF to see if you get more boost? I guess a faulty MAF could also be reducing the boost.
Did you clear the faults and then reset the ecu by disconnecting the battery? I had this problem before - cleared the faults in Vag-Com but it stayed in limp mode until I reset the ecu.

It was boosting ok (20psi ish) when i did these logs, ill have to rty and do some when the boost drops off. it is really intermitant, it can just happen and then after a few stop/starts it will dissaperar and full boost again.

 

[PhilW]

Any fault codes?