Done some 3'rd gear logs today, look ok?

[kirkmiles]

Having a few running probs with the car, did some 3rd gear logs today, I see there is some timing pull but only on one cylinder? Im running a Revo stg 2 map on my AUQ. The MAF readings seem a little low for stage 2? Can anyone give me any feedback good or bad? Ive reset the fuel trims not too long ago and car seems to run much smoother after resetting them dont know if this is a clue? Any help much appreciated.

		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)
Marker	STAMP	/min	%	ms	g/s	STAMP	°KW	°KW	°KW	°KW	STAMP	/min	%	mbar	mbar
	0	1400	32.3	4.76	16.31	0.3	0	0	0	0	0.6	1440	88	1420	1070
	0.9	1520	94	8.5	29.17	1.25	0	0	0	0	1.61	1680	103	1530	1290
	1.91	1720	107.5	9.52	37.56	2.21	0	0	0	0	2.51	1880	115.8	1820	1460
	2.82	2000	121.8	11.22	48.64	3.12	0	0	0	0	3.42	2160	140.6	2020	1710
	3.72	2280	149.6	13.26	68.19	4.02	0	0	0	0	4.32	2480	167.7	2180	2100
	4.63	2600	175.9	15.64	93	4.93	0	0	0	0	5.23	2920	191.7	2270	2510
	5.53	3080	191	19.38	107.33	5.83	0	0	0	0	6.14	3320	183.5	2230	2390
	6.44	3480	191.7	20.4	126.25	6.74	0	0	0	3	7.04	3720	191.7	2220	2310
	7.35	3840	189.5	20.06	139.08	7.64	0	0	0	3	7.95	4120	186.5	2210	2270
	8.27	4240	182	19.72	146.28	8.55	0	0	0	2.3	8.85	4480	177.4	2140	2230
	9.16	4600	177.4	19.04	153.75	9.45	0	0	0	2.3	9.77	4800	174.4	2090	2150
	10.06	4920	171.4	19.04	159.69	10.36	0	0	0	2.3	10.66	5160	165.4	2020	2030
	10.96	5200	163.2	18.02	159.92	11.26	0	0	0	1.5	11.57	5440	160.2	1990	1940
	11.87	5520	158.6	17.34	169.42	12.17	0	0	0	1.5	12.47	5680	158.6	1960	1930
	12.78	5800	156.4	17.34	172.67	13.09	0	0	0	0.8	13.39	5960	153.4	1940	1910
	13.68	6040	153.4	17.34	174.03	13.98	0	0	0	0.8	14.3	6160	145.9	1910	1850

	Group A:	'118				Group B:	'031				Group C:	'003
		Engine Speed	Intake Air	Charge Pressure	Charge Pressure	Lambda Sensor	Lambda Sensor	Bin. Bits	Bin. Bits		Engine Speed	Intake Air Mass	Throttle Drive	Ignition
	TIME		Temperature	Solenoid Valve	(actual Value)	TIME	Current Value	Specified Value		TIME			Angle Sensor 1	Timing Angle
Marker	STAMP	/min	°C	%	mbar	STAMP					STAMP	/min	g/s	%	°BTDC
	0.3	1200	23	0	1000	0.6	1	1			0	1160	9.64	7.1	18.8
	1.21	1320	22	100	1100	1.51	0.945	1			0.92	1280	22.75	72.5	12.8
	2.21	1520	21	100	1260	2.51	1	1			1.81	1440	28.25	81.6	11.3
	3.12	1720	20	100	1380	3.42	0.984	1			2.82	1680	34.03	94.1	7.5
	4.02	1960	19	100	1530	4.32	0.969	1			3.72	1880	44.25	100	9.8
	5.06	2240	19	100	1840	5.43	0.992	1			4.63	2160	60.11	100	10.5
	6.14	2720	21	83.5	2410	6.44	0.93	0.914			5.77	2560	87.83	100	6.8
	7.04	3200	21	78.4	2440	7.34	0.875	0.883			6.74	3040	106.03	100	6.8
	7.95	3600	21	78.4	2330	8.34	0.867	0.883			7.64	3440	128.69	100	7.5
	9.19	4040	21	77.6	2290	9.55	0.852	0.867			8.65	3920	140.19	100	9
	10.16	4520	24	76.1	2190	10.46	0.836	0.844			9.86	4400	150.92	100	9
	11.06	4840	24	74.1	2080	11.37	0.813	0.828			10.77	4760	157.36	100	10.5
	12.17	5240	26	73.3	2020	12.47	0.828	0.836			11.78	5040	163.81	100	12.8
	13.19	5520	27	73.7	1940	13.49	0.828	0.836			12.78	5400	166.5	100	12
	14.09	5760	29	75.3	1900	14.39	0.828	0.836			13.79	5720	173.64	100	15
	15.2	6080	31	94.1	1920	15.49	0.828	0.836			14.82	5960	178.75	100	15.8

 

[superkarl]

Everything looks ok to me. Airflow is a little low like you say. But the CF isnt worryingly high. And inlet temps are nice. 1.4 bar boost is modest aswell i think for ko3 cars.

Having said that 178g/s is a respectable 220 odd hp. Obv tuners are getting alot more nowadays but that used to be expected from a stage 2.

 

[kirkmiles]

Everything looks ok to me. Airflow is a little low like you say. But the CF isnt worryingly high. And inlet temps are nice. 1.4 bar boost is modest aswell i think for ko3 cars.

Having said that 178g/s is a respectable 220 odd hp. Obv tuners are getting alot more nowadays but that used to be expected from a stage 2.

Thanks for the reply Karl. Just wondered why CF's were only on the one cylinder? So N75 duty cycle is ok? Car does seem to drive nice on WOT its seems more part throttle or coming on boost that its a bit rough. Any more comments welcomed

 

[<tuffty/>]

CF's on cylinder 4 which is where the coolant will be hottest... coolant flow is from cyl 1 to cyl 4 exiting out the side of the head... cyl 4 typically shows timing pull before other cylinders... its normal

<tuffty/>

 

[Alex C]

CF's on cylinder 4 which is where the coolant will be hottest... coolant flow is from cyl 1 to cyl 4 exiting out the side of the head... cyl 4 typically shows timing pull before other cylinders... its normal

<tuffty/>

Thanks, i get that too

 

[kirkmiles]

CF's on cylinder 4 which is where the coolant will be hottest... coolant flow is from cyl 1 to cyl 4 exiting out the side of the head... cyl 4 typically shows timing pull before other cylinders... its normal

<tuffty/>

Thanks tuffty, think im just hoping to find something that will explain whats happening lol. Why would it be that the car runs better when fuel trims have been reset? Also is there any other tests i can do with VCDS to give the car like a health check?

 

[<tuffty/>]

Where there any faults codes and what is block 032 reporting?

<tuffty/>

 

[kirkmiles]

Where there any faults codes and what is block 032 reporting?

<tuffty/>

The only code i have is for the SAI which i have removed. Before resetting they were on 1.2 Idle and -6.3 Multi. At the mo they are at 0.8 idle and -2.3 multi

 

[<tuffty/>]

-6.3 suggests its pulling fuel which might also suggest you may have a boost leak... short term trims would go positive if it was a large enough vacuum leak... whats the history of the MAF sensor?

<tuffty/>

 

[kirkmiles]

-6.3 suggests its pulling fuel which might also suggest you may have a boost leak... short term trims would go positive if it was a large enough vacuum leak... whats the history of the MAF sensor?

<tuffty/>

Ive boost leak tested a few times and cant hear any leaks. Could do with smoke testing really. If there is a leak it must be very small. I replaced Maf around 12months ago for a new genuine part. I cleaned the sensor just before doing the logs. Do the logs not tell the full story when it comes to the MAF? Drove the car a bit today and hasnt really faulted up yet. Im guessing once the fuel trims start to learn it will be back to its old self :-(

 

[<tuffty/>]

Fuel trims are there to help rather than hinder... Bosch designed tolerance into the ECU (+/-25%) to account for small issues such as leaks etc...

Smoke test will help for sure... systematically go around the charge system tightening up the clips too... OE clips are a bit fragile mind so be careful...

<tuffty/>

 

[kirkmiles]

Fuel trims are there to help rather than hinder... Bosch designed tolerance into the ECU (+/-25%) to account for small issues such as leaks etc...Smoke test will help for sure... systematically go around the charge system tightening up the clips too... OE clips are a bit fragile mind so be careful...

Yes will try and find someone who can smoke test. Most of hoses are silicone, have also changed the metal/rubber charge pipe hose to an AGU one so think thats ok. Also deleted most of the emisions stuiff and also have catch can. I hoped this would simplify things and cause less issues lol.Could it be my lambda sensors failing?