Back to Square 1 no idea whats wrong

[ChrisCurzon]

the engine is its herssitating like mad banging and poping its horriable.

dont know taking them out this weekend to see what like now been in a month or so.

 

[ChrisCurzon]

heres the logs from 032 and did 030 too as think thats to do with lambda too aint it?

anyway here they are

	Group A:	'032				Group B:	'030			
		Lambda	Lambda	Bin. Bits	Bin. Bits		Bin. Bits	Bin. Bits	Bin. Bits	Bin. Bits
	TIME					TIME				
MARKER	STAMP	%	%			STAMP				
	0.76	-1.1	-9.4	        	        	0.38	111	100	        	        
	1.56	-1.1	-9.4	        	        	1.16	111	100

 

[m0rk]

it is, but useless on the mk3 as that's narrowband

 

[ChrisCurzon]

o right just saw it on vag com section.

that running rich then with -9.4?

 

[MikeA]

Just a quick question, have you fitted a 4 bar FPR along with Revo Stg 2?

 

[ChrisCurzon]

yep well long as its rigth one i have.

woudln't over fuel on a 3 bar FPR anyway would it? would under fuel.

 

[ChrisCurzon]

does anyone know how i cna tell with vag come if teh lambda sensor is faulty even if it doesent bring up a fault code?

 

[cupra_matt]

Mine started overfuelling at the weekend, sitting in the 11's at idle, no fault codes.

The most common component to cause this is the coolant temp sensor, i replaced that as i had a spare in my tool box and hey presto its back to normal.

 

[ChrisCurzon]

what did you log to to say in 11's.

will get awesome to check that did have one awhile back but could of gone again.

 

[cupra_matt]

I have wide band lambda and gauge in mine.

 

[ChrisCurzon]

ah rigth i dont know whats gone on mine done some logs of lambda's dont know if there rigth are not?

	Group A:	'031				Group B:	'032				Group C:	'033	
		Voltage	Voltage	Bin. Bits	Bin. Bits		Lambda	Lambda	Bin. Bits	Bin. Bits		Lambda	Voltage
	TIME					TIME					TIME		
MARKER	STAMP	 V	 V			STAMP	%	%			STAMP	%	 V
	0.4	0.805	0.79	        	        	0.8	-1.3	-7.8	        	        	0	7.8	0.79
	1.6	0.725	0.7	        	        	2	-1.3	-7.8	        	        	1.2	0	0.78
	2.8	0.095	0.095	        	        	3.2	-1.3	-7.8	        	        	2.4	5.5	0.09
	4	0.185	0.11	        	        	4.4	-1.3	-7.8	        	        	3.6	11.7	0.595
	5.2	0.64	0.665	        	        	5.6	-1.3	-7.8	        	        	4.8	21.1	0.105
	6.4	0.07	0.08	        	        	6.8	-1.3	-7.8	        	        	6	25	0.11
	7.71	0.075	0.08	        	        	8.09	-1.3	-7.8	        	        	7.2	25	0.07
	8.89	0.05	0.05	        	        	9.31	-1.3	-7.8	        	        	8.49	25	0.045
	10.11	0.045	0.05	        	        	10.51	-1.3	-7.8	        	        	9.71	25	0.045
	11.4	0.05	0.055	        	        	11.8	-1.3	-7.8	        	        	10.91	25	0.05
	12.6	0.065	0.06	        	        	13.1	-1.3	-7	        	        	12.19	25	0.065

 

[ChrisCurzon]

just had a thought as matt said coolant temp sensor could cause over fuelling recently the temp needle never seems to get to 90 and seems to stay just below that could that be the sensor not reading right and over fuelling it?

Just a thought.

 

[PhilW]

Forget logging 031 as its narrowband.

Does 032 show -1.3 and -7.8 most of the time?

If it does, go to lemmiwinks, set Secondary Fuel Tweak to 98.4% and set Primary Fuel Tweak to -7.23%. Save your settings.


Once again go back into VAG Com and reset your ECU to zero the fuel trims. Now drive your car around as before and allow adaptation to take place. Check your block 032 values, they should be close to zero, if not repeat the above steps using Lemmwinks to correct them. Once you have your fuel trims under control so they do not exceed the + or -10% range and you are happy with them.

 

[ChrisCurzon]

032 showed that all last nigth but other day showed -1.1 and -9.4 so its changing slightly.

 

[PhilW]

I edited my post now, i havent tried this method but it should work.

 

[ChrisCurzon]

cool cheers phil will give it a try.

need to get settigns turned back up though as tehre on somet liek HB2 and T2 at mine cause garage messges with them to make it run better they said.

 

[Neel-Cupra]

can anyone help, the following code keeps coming up:

17535 - Long term fuel trim mult. Bank 1 system too rich

ive checked the boost pipes, no boost leaks, maf reads 192 g/s, lamda maybe? can't work out what it could be

 

[Neel-Cupra]

anyone

 

[ChrisCurzon]

sorry mate dont know on that one. you not had it into a garage yet?

192 is good maf reading only getting like 154 of soemt on mine

 

[PhilW]

192 isnt a good reading, thats overeading, thats why its overfuelling.