i know it cant kick out 375bhp logs new maf fitted and tc light on in 6th gear only??

[epox]

i know it cant kick out 375bhp logs


naw bosch maf tc light comes on only when accelerating hard in 6th gear.

any help welcome

	Group A:	'003				Group B:	'020				Group C:	'118
		Engine Speed	Mass Air Flow	Throttle Valve Angle	Ignition		Timing Retardation	Timing Retardation	Timing Retardation	Timing Retardation	Engine Speed	Intake Air	Boost Pressure	Boost Pressure
	TIME	(G28)	Sensor (G70)	Timing Angle	TIME	Cylinder 1	Cylinder 2	Cylinder 3	Cylinder 4	TIME	(G28)	Temperature (G42)	Control (N75)	(actual)
Marker	STAMP	/min	g/s	%	°BTDC	STAMP	°KW	°KW	°KW	°KW	STAMP	/min	°C	%	mbar
	35.56	2680	102.89	40	-1.5	35.86	0	0	0	0	35.27	2600	21	94.5	1590
	36.47	3120	162.22	42.7	12	36.77	0	0	3	3	36.16	2920	21	94.5	1930
	37.37	3680	237.14	44.3	4.5	37.68	0	0	3	3	37.08	3480	21	83.5	2440
	38.28	4320	247.94	48.2	11.3	38.57	0	0	2.3	2.3	37.97	4080	21	80.4	2510
	39.19	4880	263	51.8	14.3	39.49	3	3	5.3	2.3	38.89	4720	21	83.1	2300
	40.09	5400	272.28	52.9	11.3	40.39	3	3	5.3	2.3	39.79	5240	23	87.1	2190
	41	5840	290.06	54.5	13.5	41.3	3	2.3	4.5	1.5	40.7	5720	24	93.3	2110
	41.9	6240	305.67	55.3	12.8	42.21	2.3	2.3	4.5	1.5	41.6	6080	26	94.5	2090
	42.82	6560	301.25	50.2	14.3	43.11	2.3	2.3	6.8	1.5	42.51	6480	27	88.2	2030
	43.72	6840	206.08	44.7	-7.5	44.02	0	0	0	0	43.41	6800	30	77.6	2030
	44.62	5000	5.97	6.7	5.3	44.91	0	0	0	0	44.32	5760	29	0	1280
	169.52	2640	63.64	43.5	19.5	169.84	0	0	0	0	169.22	2080	24	94.5	1010
	170.44	2920	106.28	42	3.8	170.74	0	0	0	0	170.13	2760	22	94.5	1370
	171.33	3120	17.03	12.9	35.3	171.65	0	0	0	0	171.04	2960	20	0	1520
	172.25	3480	80.58	29.4	27	172.55	0	0	0	0	171.95	3200	19	0	1130
	173.15	4960	281.44	52.2	19.5	173.46	0	0	5.3	0	172.84	4360	20	76.1	1750
	174.07	6560	196.25	32.9	-6.8	174.36	0	0	0	0	173.77	6240	20	94.5	2080
	174.96	4440	185.42	49.4	9.8	175.27	0	0	0	0	174.66	5160	18	69	1120
	175.87	5440	295.42	54.1	12	176.17	3	0	0	3	175.57	5080	21	83.9	2440
	678.81	2240	12.75	9	34.5	678.21	0	0	0	0	678.52	2240	12	0	1030
	679.73	2440	53.86	54.9	13.5	679.12	0	0	0	0	679.42	2360	12	94.5	1070
	680.63	2800	85.03	40.8	13.5	680.03	0	0	0	0	680.33	2680	11	94.5	1450
	681.53	3240	149.14	43.9	6.8	680.94	0	0	0	0	681.23	3080	11	82.4	2030
	682.44	3920	171.42	46.7	10.5	681.84	0	0	0	0	682.13	3640	11	77.3	2540
	683.35	4520	117.94	49.8	16.5	682.75	0	0	0	0	683.05	4360	11	78	2450
	684.26	4680	5.97	5.5	4.5	683.65	0	0	0	0	683.95	4720	11	0	1880

cheers mark

 

[beachbuggy]

Definitely not kicking out 300grams from 2000mbar!

You our got the correct maf?

 

[epox]

ye correct maf took sensor out to check part nos with the old one.

just strange readings ant the tc light on only when ex hard in 6th.

vcds is throwing up maf error.

 

[beachbuggy]

Maf right way round?

 

[s33nyboy12]

Maf right way round?

hes gone to check lol!

 

[epox]

hope so! flow arrow towards turbo and square end of sensor also facing turbo.
square end is on the outside where electrics connect

cheers

tried cheep chiness maf and that was throwing tc light on any gear and when boost kicked in.

 

[s3dave]

Its easily done it must be, hell i left a well known mappers with it like that!! DONT ASK..

 

[epox]

car idles and drives fine fuel trim at idle and after long run lhs goes to 0.4 max and rhs stays at 0.

mark

 

[vroomtshh]

If the turbo outlet pipe is leaking, it'll read high and chuck a maf fault

 

[epox]

so what one is that!! lol its all ****** pipes
cheers

 

[vroomtshh]

The one directly off the turbo. I don't know what car you have to say much more

 

[epox]

hi 2003 s3 bam, red one on top of engine?

 

[vroomtshh]

hi 2003 s3 bam, red one on top of engine?

thats the one

 

[epox]

thanks, will check it out tmro
mark

 

[badger5]

how will turbo outlet pipe effect turbo inlet apparent flow?

dodgy maf it sounds like to me

 

[epox]

any one got a working new or second maf sensor i can purchase? now it should be in classifieds but!!!!!
just driving me mad. maf wasnew from ecp!

mark

 

[vroomtshh]

how will turbo outlet pipe effect turbo inlet apparent flow?

dodgy maf it sounds like to me

no idea, but you might remember me asking your advice on it. And that's what the problem was. The hose clip had come off at the turbo end, sometimes it drove perfect for days, other days it gave me a maf fault and was reading 290bhp of air on a standard map

i didn't find this until after I had tried 3 MAFs, and fully rewired the maf loom back to the ecu :-(

 

[epox]

hi guys.
did have a look this pipe this morning look ok , will have to do a proper strip down i think!!!!!

mark

 

[badger5]

no idea, but you might remember me asking your advice on it. And that's what the problem was. The hose clip had come off at the turbo end, sometimes it drove perfect for days, other days it gave me a maf fault and was reading 290bhp of air on a standard map

i didn't find this until after I had tried 3 MAFs, and fully rewired the maf loom back to the ecu :-(

how weird is that tho?

 

[vroomtshh]

how weird is that tho?

i know. I'm still not really sure how it did it, but it did. And was always a maf too high value.
It was odd as well because some times it would hold 18psi, other times it was showing all the signs of a boost leak
smoke test didn't show it up either

 

[epox]

ok checked all pipes no loose ones ! back to the maf.. more money for something that is a pain.
mark