Need someone to look over data logs + help with boost surge issue

[LSL]

Hey, I was told to do some data logs to help figure out my boost surge issue so here they are, I'd be very grateful if someone that knows there stuff has a look over them!

The problem I'm having is it appears once a certain boost pressure is reached it dumps, then boosts back up again, it keeps doing this all the way up the rev range. It does it under part throttle too.
I also checked the adaptions as they can show leaks, they were 0% short term and -1.6% long term.

I done 2 runs for each of the groups all in 3rd gear.

Group A:	'002				Group B:	'020				Group C:	'115
	Engine Speed	Engine Load	Injection	Intake Air Mass	Cylinder 1 Ignition	Cylinder 2 Ignition	Cylinder 3 Ignition	Cylinder 4 Ignition	Engine Speed	Engine Load	Charge Pressure	Charge Pressure
TIME			Timing		TIME	Angle Delay	Angle Delay	Angle Delay	Angle Delay	TIME			(specified Value)	(actual Value)
STAMP	/min	%	ms	g/s	STAMP	CF	CF	CF	CF	STAMP	/min	%	mbar	mbar
9.43	720	23.3	2.72	3.25	9.83	0	0	0	0	8.93	720	22.6	980	980
41.21	1880	81.2	9.52	33.89	40.4	0	0	0	0	40.81	1760	51.9	1570	970
42.62	2440	142.9	16.32	71.11	41.71	0	3	0	3	42.22	2280	123.3	1690	1560
43.91	3120	112	14.62	93.14	43.02	0	3	3	6	43.51	2920	110.5	1620	1600
45.13	3680	160.2	18.7	128.47	44.33	6	5.3	6	6.8	44.73	3520	106.8	1560	1310
46.33	4360	154.1	20.06	126.17	45.53	6	5.3	6	6.8	45.93	4080	133.8	1630	1740
47.55	4800	152.6	21.08	140.17	46.75	5.3	5.3	5.3	6	47.15	4600	152.6	1640	1980
48.86	5360	152.6	23.46	154.89	47.96	5.3	3.8	5.3	6	48.44	5200	154.1	1640	1940
50.17	5840	140.6	21.76	156.72	49.35	4.5	3	4.5	9	49.77	5680	138.3	1630	1760
51.37	6280	121.8	18.02	146.06	50.57	4.5	3	7.5	8.3	50.97	6160	123.3	1570	1580
73.09	1800	13.5	0	4.81	72.18	0	0	0	0	72.58	1840	13.5	980	990
201.82	1800	25.6	4.76	17.86	202.32	0	0	0	0	201.43	1800	18.8	980	980
203.14	2280	118	12.92	57.25	203.54	0	0	0	0	202.72	2080	101.5	1720	1270
204.34	2960	160.9	18.36	88.61	204.74	0	0	0	0	203.94	2720	156.4	1690	2000
205.55	3640	113.5	12.92	49.19	205.95	0	0	0	0	205.14	3400	160.2	1620	1960
206.85	4320	105.3	12.24	87.14	207.26	0	0	3	6	206.45	4120	154.1	1650	2300
208.06	4920	124.1	15.64	113.17	208.56	0	0	6	5.3	207.67	4720	139.8	1640	1770
209.37	5560	129.3	17.68	134.92	209.77	0	3	6	5.3	208.96	5360	136.8	1650	1700
210.57	6080	124.8	17.68	145.58	210.99	0	3	5.3	4.5	210.17	5880	127.8	1590	1580

Group A:	'003				Group B:	'020				Group C:	'118
	Engine Speed	Intake Air Mass	Throttle Drive	Ignition		Cylinder 1 Ignition	Cylinder 2 Ignition	Cylinder 3 Ignition	Cylinder 4 Ignition	Engine Speed	Intake Air	Charge Pressure	Charge Pressure
TIME			Angle Sensor 1	Timing Angle	TIME	Angle Delay	Angle Delay	Angle Delay	Angle Delay	TIME		Temperature	Solenoid Valve	(actual Value)
STAMP	/min	g/s	%	°ATDC	STAMP	CF	CF	CF	CF	STAMP	/min	°C	%	mbar
78.54	1800	31.78	100	12	77.64	0	0	0	0	78.03	1720	20	95.3	1000
79.74	2240	57.11	100	9	78.94	0	0	0	0	79.34	2080	17	95.3	1390
80.96	2920	52.92	29.4	10.5	80.14	0	3	0	5.3	80.54	2680	15	54.9	2020
82.26	3520	64.06	76.9	19.5	81.46	0	3	0	4.5	81.86	3320	15	0	2280
83.57	4120	129.72	94.5	10.5	82.66	0	2.3	0	4.5	83.07	3920	15	0	1700
84.91	4680	126.97	99.6	10.5	83.98	0	2.3	6	3.8	84.38	4480	16	69.4	1370
86.1	5240	140.17	99.6	15.8	85.28	0	2.3	6	3.8	85.68	5080	18	64.3	1580
87.49	5840	142.47	100	21	86.59	0	1.5	5.3	3	87.09	5680	22	63.1	1630
88.7	6240	143.92	100	23.3	87.9	0	0.8	4.5	3	88.3	6120	24	62.7	1580
194.09	1720	4.36	2.4	14.3	194.49	0	0	0	0.8	193.7	1760	17	0	990
195.41	2040	43.78	100	14.3	195.8	0	0	0	3.8	194.91	1840	17	95.3	1100
196.72	2720	87.94	100	3	197.12	0	0	0	3.8	196.32	2480	14	66.7	1760
197.92	3440	124.36	96.9	8.3	198.33	0	0	0	3	197.52	3200	12	74.9	1380
199.24	4160	81.64	29.8	11.3	199.64	0	0	3	3	198.83	3920	12	60.4	1890
200.44	4760	85	42.4	20.3	200.84	3	3	3	7.5	200.04	4560	15	49.8	2090
201.76	5440	130.47	100	14.3	202.25	3	5.3	5.3	7.5	201.24	5160	18	53.7	1960
203.05	6000	158.94	100	13.5	203.47	2.3	5.3	5.3	6.8	202.65	5800	21	66.7	1810
204.36	6440	103.47	80.8	8.3	204.88	0	0	0	0	203.96	6320	26	33.3	1450

 

[badger5]

its over boosting from request so ecu is cutting it...
pulling a lot of timing also.

N75 failing or split pipe associated with its pipework?

unmapped from the boost requests.

fault codes expected to see with this would be charge pressure maximum exceeded type code..

 

[Sixty 9 GP]

What would be the major cause for the car to pull timing?

 

[badger5]

too much boost for starters... its overshooting request
oily charge pipe from pcv malfunction... check throttle body for oil dribbling out

I would be looking at why its over boosting first and fixing that

 

[LSL]

Thanks for the reply Bill! I checked all the pipework the other day and couldn't see any splits so I'll grab a new N75, it hasn't been throwing any fault codes though...

Also I've recently cleaned the TB and done away with the PCV system, there was no excessive oil then so I doubt that's causing any problems.