Engine managment light on and on and on

[robo_1]

Why do it keep coming on after i reset with vcds???

And why does it only come on when car going down a hill de excelerating??? strange...

Friday, 31 August 2012, 17:08:22.

Control Module Part Number: 038 906 012 HC

Component and/or Version: 1,9l R4 EDC G000SG 4923

Software Coding: 00002

Work Shop Code: WSC 31480

VCID: 58C30B63AB1D

Additional Info: TMBAP21U048734562 SKZ7Z0C2076458

1 Fault Found:

16485 - Mass Air Flow Sensor (G70): Implausible Signal

P0101 - 35-10 - - - Intermittent

Any help is most welcome please.....Thanks

[Bowders1]

Looks like your MAF(air flow metre) has had it. Reset the code and run car again to confirm.

You can test MAF by unplugging sensor and if car does not run worse it has had it. But the code confirms that anyway

[robo_1]

Hmmmm, this is very strange..

This is what has been done to the Engine so far..

Cleaned out EGR and Manifold

Replaced MAF

Replaced MAP

Cleaned Turbo

New Air filter

Cleaned out all pipework and intercooler

All wire connections Cleaned an WD40 ed...

Now the Dam Engine Management light comes on..

Like i said.. This only comes on when i am going down a hill de exceleration foot on brake...

Weired i know... Theres nothing more i can do or replace..

Diagnostics time i think... :wall: :wall:

[Bowders1]

Hmmmm, this is very strange..

This is what has been done to the Engine so far..

Cleaned out EGR and Manifold

Replaced MAF

Replaced MAP

Cleaned Turbo

New Air filter

Cleaned out all pipework and intercooler

All wire connections Cleaned an WD40 ed...

Now the Dam Engine Management light comes on..

Like i said.. This only comes on when i am going down a hill de exceleration foot on brake...

Weired i know... Theres nothing more i can do or replace..

Diagnostics time i think... :wall: :wall:

replace the WD40 with silicon electrical spray or sealant makes a difference specially to the coilpacks.

Does sound like you need get diagnostics done buddy

[Clarkyzs]

Could it be dodgey wiring? Just with the engine moving each time you either let off the throttle to coast or to roll down a hill it may well be chaffing somewhere.

[kentphil1]

Search on here for Cage mod, could be worth doing if you have already renewed the MAF. I did mine and it made a feelable difference.

[Lofty79]

Was it a genuine Maf or a cheapy after market One?

[robo_1]

I replaced the MAF with a Bosch one from my local stealers...

Edited 3 September, 2012 by robo_1

[Lofty79]

wiring then mate, get in about it.

[robo_1]

Thanks for all you help guys...

Booking it in for diagnostics next monday... I will keep you all posted.. :whew: