Vagcom LOG help/clarification/guidence

[Azza_]

just revisiting this, after trawling tinternet i came across this thread from this very forum

http://www.seatcupra.net/forums/showthread.php?t=262399

as i say the logs i remember from right after mapping the car where better than currently, could this be a sign of the fuel pump failing to supply the fuel needed hence backing off boost?

not meaning to go on and question you guys seeing as you know more than me, just dont want to go to the guy who mapped the car saying hes wrong (when the car was actually making the bhp quoted to me) for him to check it and say its my fuel pump

 

[David McMahon]

for him to check it and say its my fuel pump

From the BMW scene, we're sometimes told just to get a Fuel pump anyway, even just to keep one as a spare, sometimes even *in* the car!

I don't know how much they cost but our local Seat dealer wanted £15/L just for gearbox oil...

 

[Azza_]

luckily you can get a replacement pump NEW for about 60quid and they are drop in pumps no mods needed, its definately on my TODO list

 

[David McMahon]

luckily you can get a replacement pump NEW for about 60quid and they are drop in pumps no mods needed, its definately on my TODO list

They supply enough pressure for your (seeing sig) 215BHP?

 

[Azza_]

stock pumps do yeah but being 12yr old itll be getting tired now so possibly not supplying the fuel needed to get me going properly

 

[David McMahon]

stock pumps do yeah but being 12yr old itll be getting tired now so possibly not supplying the fuel needed to get me going properly

Seems sensible to get one and use your old one as a backup.

 

[Azza_]

just to finish this off, i spoke to the guy who tuned my car, he ran me through a couple things and i sent him some fresh logs, he diagnosed a bad maf

went to eurocarparts this morning and bought a bosch reman MAF sensor, ran a quick log on the way home and managed what i think is a healthy 177g/s which is roughly 220bhp

so that seems to be that hopefully that will sort the knock out aswell and the lean uptop problem

 

[Azza_]

and the log (very short) to show the difference in what the maf is seeing

	817.67	0.4	0.8	        	        	817.98	2000	73.7	8.84	31.56	817.37	1920	33.1	1010	1020
	818.58	0.4	0.8	        	        	818.88	2200	119.5	13.94	55.64	818.29	2040	81.2	1430	1170
	819.48	0.4	0.8	        	        	819.79	2560	151.9	15.3	78.31	819.18	2280	134.6	1690	1550
	820.39	0.4	0.8	        	        	820.69	3000	160.2	17	94.44	820.09	2680	146.6	1870	1860
	821.3	0.4	0.8	        	        	821.61	3480	178.9	18.7	121.08	821	3160	169.2	2170	2040
	822.21	0.4	0.8	        	        	822.51	4040	191.7	21.76	152.72	821.9	3680	177.4	2070	2140
	823.12	0.4	0.8	        	        	823.42	4640	188	21.76	164.25	822.81	4280	191.7	2050	2270
	824.02	0.4	0.8	        	        	824.31	5120	175.9	20.74	170.92	823.72	4800	185	1950	2070
	824.91	0.4	0.8	        	        	825.23	5600	157.9	18.36	170.5	824.62	5320	166.2	1840	1920
	825.83	0.4	0.8	        	        	826.13	5960	151.1	17.68	175.94	825.53	5680	154.9	1780	1770
	826.73	0.4	0.8	        	        	827.04	6280	151.1	17.34	177.75	826.43	6040	151.1	1750	1730

sorry for another bump but seeing someone sort there problem and not reply bugs me so i like to be complete