my logs diag. mk3 ibiza cupra

[defected123]

hi guys been having running issues lately cars not been wanting to rev over 4.5k properly and exhaust banging on gear change,so ive done some logs on block 1 (lambda correction) 2 (MAF) 20 (ignition) results are here.

 Thursday	20	January	2011	14:15:02											
6K0 906 032 AA		1.8L 20VT EU3       0002													
															
	Group A:	'001				Group B:	'002				Group C:	'020			
		RPM	Temperature	Lambda	Bin. Bits		RPM	Load	Inj. On Time	Mass Flow		Idle Stabilization	Idle Stabilization	Idle Stabilization	Idle Stabilization
	TIME					TIME					TIME				
Marker	STAMP	 /min	°C	%		STAMP	 /min	%	 ms	 g/s	STAMP	 CF	 CF	 CF	 CF
	0.36	840	93	-1.6	1111111	0.76	840	22.6	2.05	3.56	1.16	0	0	0	0
	1.56	840	93	0	1111111	1.96	840	22.6	2.05	3.44	2.46	0	0	0	0
	2.86	1160	93	0	1100011	3.26	2040	54.1	3.28	11.5	3.66	0	0	0	0
	4.15	1000	93	0.8	1100011	4.55	1360	75.9	7.38	23.83	5.07	0	0	0	0
	5.55	2400	93	0	1101001	5.95	2920	89.5	8.61	54.75	6.35	0	0	0	0
	6.76	2880	93	0	1110101	7.26	2080	55.6	5.33	23.5	7.75	0	0	0	0
	8.15	2440	93	0	1100001	8.55	2640	91.7	9.43	51.94	8.95	0	0	0	0
	9.35	3200	93	1.6	1100001	9.75	3520	144.4	15.58	103.33	10.15	0	0	0	0
	10.55	4160	93	0	1100001	10.95	4280	191.7	23.37	166	11.45	0	0	0	0
	11.85	3360	93	0	1100001	12.25	3040	130.8	14.35	83.36	12.74	0	0	0	0
	13.26	2880	93	0	1110101	13.75	2720	5.3	0	2.33	14.15	0	0	0	0
	14.55	2440	93	0	1110101	14.95	2400	8.3	0	3.75	15.35	0	0	0	0
	15.75	2320	93	0	1100101	16.15	2360	22.6	2.46	13.19	16.65	0	0	0	0
	17.16	2240	92	3.1	1101001	17.64	2240	18	1.64	7.39	18.04	0	0	0	0
	18.44	2200	92	6.3	1101001	18.84	2200	20.3	2.05	9.03	19.35	0	0	0	0
	19.85	2160	92	4.7	1101001	20.25	2160	29.3	2.87	13.19	20.65	0	0	0	0
	21.05	2160	92	6.3	1101001	21.45	2200	31.6	2.87	13.42	21.85	0	0	0	0
	22.25	2200	92	7	1101001	22.74	2160	29.3	2.87	12.67	23.14	0	0	0	0
	23.56	2200	92	7.8	1101001	24.04	2200	28.6	2.87	11.81	24.55	0	0	0	0
	24.95	2200	91	1.6	1101001	25.35	2200	22.6	2.05	9.03	25.75	0	0	0	0
	26.13	2200	92	6.3	1101001	26.53	2160	21.1	2.05	9.36	26.93	0	0	0	0
	27.33	2160	91	2.3	1101001	27.73	2160	35.3	3.69	17.58	28.13	0	0	0	0
	28.53	2240	91	-3.9	1101001	28.93	2280	44.4	4.1	19.53	29.33	0	0	0	0
	29.73	2400	90	0	1100001	30.15	2480	89.5	9.02	46.92	30.65	0	0	0	0
	31.16	2680	90	0.8	1100001	31.64	2840	124.1	13.53	71.75	32.13	0	0	0	0
	32.53	3200	90	0.8	1100001	32.93	3400	188	23.37	123.5	33.33	0	0	0	0
	33.85	3840	90	19.5	1100001	34.25	4000	189.5	27.88	144.56	34.65	0	0	0	0
	35.05	4400	90	22.7	1100001	35.45	4600	188.7	22.14	167.89	35.85	0	0	0	0
	36.25	4720	90	0	1100001	36.65	4680	191.7	21.73	181.11	37.14	0	0	0	0
	37.64	3160	90	0	1110101	38.13	3080	4.5	0	2.75	38.53	0	0	0	0
	38.93	2840	91	0	1110101	39.33	2680	7.5	0	3.89	39.73	0	0	0	0
	40.13	2440	90	0	1110101	40.53	2360	7.5	0	3.5	40.93	0	0	0	0
	41.33	2200	90	0	1110101	41.73	2160	7.5	0	3.5	42.13	0	0	0	0
	42.53	2120	90	0	1110101	42.93	2080	8.3	0	3.42	43.33	0	0	0	0
	43.73	2040	90	0	1110101	44.13	1960	9.8	1.23	3.94	44.53	0	0	0	0
	44.93	1920	90	0	1101011	45.33	1880	45.1	4.51	17.47	45.73	0	0	0	0
	46.13	1800	90	0.8	1111011	46.53	2520	46.6	2.46	11.03	46.93	0	0	0	0
	47.43	2600	90	7	1101001	47.84	2720	83.5	8.61	48.14	48.34	0	0	0	0
	48.74	3080	90	0	1100001	49.14	3200	172.9	20.5	111.31	49.64	0	0	0	0
	50.04	3680	90	28.9	1100001	50.44	3840	188	21.73	135.08	50.93	0	0	0	0
	51.35	4280	90	10.2	1100001	51.75	4120	37.6	1.64	0	52.23	0	0	0	0
	52.63	2720	90	0	1110101	53.03	2440	4.5	0	1.64	53.43	0	0	0	0
	53.92	2200	90	0	1100101	54.32	2080	9.8	1.23	3.47	54.72	0	0	0	0
	55.24	1960	90	0	1110111	55.64	1880	9	0	3.39	56.13	0	0	0	0
	56.53	1720	90	0	1110111	56.93	1680	9	0	2.92	57.33	0	0	0	0
	57.73	1560	91	0	1110111	58.13	1480	9.8	0	2.94	58.63	0	0	0	0
	59.03	1360	90	0	1100011	59.52	1320	45.9	4.92	15.22	60.03	0	0	0	0
	60.43	1320	91	3.1	1100111	60.83	1280	26.3	2.05	5.14	61.23	0	0	0	0
	61.73	1280	91	7	1101011	62.13	1240	30.1	2.87	7.08	62.53	0	0	0	0
	62.93	1240	90	7.8	1101011	63.33	1200	54.1	4.92	11.44	63.73	0	0	0	0
	104.31	2280	92	9.4	1100001	104.72	2320	67.7	6.97	32.75	105.21	0	0	0	0
	105.61	2680	92	0	1100001	106.01	3040	137.6	14.76	89.56	106.41	0	0	0	0
	106.81	3640	92	9.4	1100001	107.21	3920	178.2	23.37	132.28	107.61	0	0	0	0
	108.01	4680	92	29.7	1100001	108.41	4880	184.2	28.7	170.44	108.91	0	0	0	0
	109.31	4160	92	25	1100101	109.71	3440	121.8	15.58	94.78	110.11	0	0	0	0
	110.51	3680	92	9.4	1100001	110.91	3880	191.7	23.37	143.97	111.31	0	0	0	0
	111.71	4240	92	2.3	1100001	112.11	4280	91	9.43	47.11	112.51	0	0	0	0
	113.02	4240	92	8.6	1100001	113.42	4080	30.8	2.05	8.14	113.92	0	0	0	0
	114.4	2800	92	0	1110101	114.91	2680	6.8	0	4.08	115.4	0	0	0	0
	115.8	2480	93	0	1110101	116.2	2920	8.3	0	5.33	116.6	0	0	0	0
	117	2880	92	6.3	1101001	117.4	2960	77.4	8.2	48.5	117.8	0	0	0	0
	118.2	3000	93	11.7	1100001	118.6	3080	94	9.43	56.78	119.11	0	0	0	0
	119.59	3400	93	3.1	1100001	120.11	3560	188	25.42	134.11	120.51	0	0	0	0
	120.91	3840	93	29.7	1100001	121.31	4000	185.7	22.96	147	121.71	0	0	0	0
	122.09	4280	93	29.7	1100001	122.51	4280	157.1	17.63	109.83	122.91	0	0	0	0
	123.31	4480	93	12.5	1110101	123.69	3120	12.8	1.23	0.72	124.09	0	0	0	0
	124.49	2680	93	0	1110101	124.89	2320	5.3	0	2.28	125.29	0	0	0	0
	125.69	1400	93	0	1110111	126.09	1280	13.5	1.23	3.47	126.6	0	0	0	0
	127.1	1000	93	0.8	1111111	127.5	920	17.3	1.64	3.28	127.9	0	0	0	0
	128.3	840	93	3.1	1111111	128.7	800	18.8	1.64	3.03	129.1	0	0	0	0
	129.5	840	93	3.1	1111111	129.9	800	20.3	2.05	4.33	130.39	0	0	0	0
	130.79	840	93	-0.8	1111111	131.29	840	18	1.64	3.06	131.8	0	0	0	0

looks like the maf seems to be ok and also the timing spot on but ive been told numbers on the lambda over 20 is too rich and needs looking at but i wouldnt know where to start lol...any help would be great

didnt get change to give it a proper go at today as its slippery as hell and full of panic drivers but you can get an idea

cheers
richard

 

[truCido]

Looks like about 230bhp maybe a lil more, maybe we'll only log 2 blocks at a time from now on as its a little slow with 3

Block 001 is lambda adjustment so doesn't necessarily tell you anything I dont think? Gotta be honest I'm not really that familiar with that one

 

[James.Judd.1]

exactly the syptoms of mine when my coil packs go. The reason it pops and bangs is because unburnt fuel is getting into the exhaust. (also explain why it thinks its running rich)

My coil packs werent completely gone only under load/high boost.

Im not an expert just my personal experience.

 

[defected123]

did a quick bit of research on it and found if its in the minus's its underfueling and if its around past 20 its over fueling,need to log group 31 as thats the air fuel ratio but i cant with the lite vagcom,the maf sensor readout wont be exact to bhp cause i didnt really rev over 4.8k as it doesnt haha thats the problem its hesitates around that and then pops as i change gear,car should be around 280bhp with the mods i have

coilpacks i had 1 fail around a month ago and i replaced 2 at that time so i do have 2 oldish ones in,but no misfires detected in vagcom scan...it is only on full throttle high boost when i have these issues

 

[James.Judd.1]

it could of done anouther one.. propably worth buying a new one and try it in all 4 cylinders see if it fixes your problem... I would advise then changing all 4 after if it does fix it.

Mine never put up a misfire code, only lambda errors which i assumed where caused by the mixture of unburnt fuel and the bangs..

£35 ish for a coilpack its got to be worth a try... and if it doesnt you will deffinately need it sometime in the future.

 

[truCido]

like you said need 031 and 115 really must be someone around you with full version? or if you're near Bill @ Badger5 I'm sure he'd do some logging for you on the dyno for a small fee

 

[defected123]

yea i think ill do some coil pack checks ive got a spare which i will move around and see if that cures it if not it needs the other checks....thing is if the air fuel mixture is out....2 things whats caused that and how do you go about making it right ? cheers

 

[twenny]

Alright mate

could be coils again but For the cost of a set of plugs id change them to rule them out first , have you gone to a colder grade? ,if your still on the standard ones heat range wise with all your mods id maybe try a grade colder ,

but id certainly look there first , for cost etc , how long since plugs were changed ? and what plugs are in bud.

just somthing to try before you spend loads on getting it diagnosed mate .
youd be amazed how often plugs get overlooked in these issues .

all the best

twenny

 

[defected123]

yea think ill try having all new coils in and see what happens then go down the plugs route...got ngk BKR7E's in atm,they look fine and are not that old,just puzzled to why all of a sudden it could be the air fuel ratio as ive no idea what causes it to just go out :S cheers guys

 

[defected123]

been out all day working on the car and cleaned plugs which look fine and replaced the 4th coil pack with a spare i had and its still the same ,maf is fine from the logs and cant see why my air fuel ratio would be wrong....so i unplugged my n75 valve and took it for a run its only boosting to 10psi but i can have my foot full down on power and not have the popping holding back issues....then i plugged it back in and back upto 20psi but its like hitting a limiter around 4.5k and wont go any further then bang i change gear and have a massive pop from the exhaust...getting pissed off now with what it could be i dont know if getting a full set of coilpacks and new plugs will solve this as there's 2 coilpacks in that are relativly new and swapping them over and stuff is doing nothing....cheers

 

[James.Judd.1]

Buy 4 new plugs and 4 new coil packs, you have exactly the same syptoms as i had.
I done the same thing as you by using a spare coilpack and that made no diff.. In the end decided to change all 4, problem solved. Could be a duff spare one you have like I did.

I also done the same and unplugged my n75, limiting boost to about 7psi and it ran fine like you said.
The reason it ran fine is coz the coilpack is failing under high load/boost.. 4500rpm is about where peak performance of the engine is and where the coilpack completely gives up. Meaning no spark and unburnt fuel getting into the exhaust and thats why it pops and bangs.

 

[defected123]

I will do this I think mate.....could the fuel pump have anything to do with it on high loads ?
Cheers

 

[defected123]

put 2 brand new coilpacks in today to go along with the 2 that are already only a month old and i still have this problem waiting for new spark plugs to be deliverd tomorrow to try that but its only on full throttle like i can be a tiny tiny bit off from full throttle and its almost fine :S

also friday night prior to replacing the coilpacks it went down to 3 cylinders temporarily then was fine again so it must be ign related in some way

 

[seatcupramad23]

you might want to check the actuator , mine have sort of the same symptoms , if i'm half throttle will rev with no hesitation and pull all the way to red line nicely but i'f use full throttle especially in high gears if hesitates , had it logged by bill @badger5 turned ot my actuator weren't holding pressure, can't say for sure in your case but worth a check i'd say

 

[ibizacupra]

given this was bennys old car, i wonder if its wiring issue on the engine multiplug has returned?

 

[defected123]

given this was bennys old car, i wonder if its wiring issue on the engine multiplug has returned?

what happend with it bill ? im a little stuck atm im waiting for some plugs to arrive tomorrow but im sure its ign related not the afr like we said a few weeks ago....what was the issue before ?

 

[defected123]

got myself a new problem today window regulator and motor packed up haha each day brings me something new .....but ive noticed that my exhaust is blowing and looking under the car can see condensation water and a little bit of smoke escaping from around the middle of the exhaust slightly looks like there could be a small hole,wonder if this is causing my car to be playing up with the rev issue ?

 

[ibizacupra]

issue before was cutting out randomly, throttle body and a shed load of fault codes..
the fix then (2+ years or more ago now) was twisting the pins in the multi socket, so they forced a good connection. it had a clutch done previously and the loom had been wrenched about badly which i think kicked off the issue.

 

[defected123]

Yea I see bill it's not really cutting out just feels like something is restrictive.....would this small hole in the exhaust cause my issue ?

 

[samv20vt]

im haven same problem have for like 7 months now and cant figure out wats rong driven me crazy got data log software but dont no how to do it