Reply With QuoteYou may possibly have a air leak. Have a look for any split or broken pipes. Have you done any mods recently?Originally Posted by mikk@
Volkswagen Fan
Car: 1.6L Man
Problem: 1.Rough start in the morning and lumpy idle- then OK after 5 min
2.Flat spot in power ( i think its the MAF)
Apart from Vag Com check, anyone got any suggestions on things i should look at or replace?
Thanks in advance
Mick
Volkswagenist
You may possibly have a air leak. Have a look for any split or broken pipes. Have you done any mods recently?
Volkswagen Fan
Nah, no mods..
I got the car with an ABT? air induction kit but pretty standard otherwise..
Volkswagenist
Does that conect after the MAF or before it?
If it replaced the pipe after the MAF, it may be loose letting un-filtered (and un-meterd) air in. That would give you the symptoms you have now...
It would be worth while to suss it out.
Otherwise, disconect the MAF and see if it goes away. If it does you have a MAF that is returning a bad reading.
Sponsor
Do a visual for obvious stuff and then you really need to run a scan. Also measured vale blocks - block 03 will check for unmetered air. There is a Vac pipe that comes adrift on the intake elbow near the cyl head and having said that the intake elbows are notorious for splitting and can go unseen unless pressed as it is a concertina, when accelarating the split opens up.
Good luck
Jmac
Alba European
Service, Diagnostics and repairs. Mobile Diag available on request
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Volkswagen Fan
Here is a pick..
As it shows, air is first FILTERED then MEASURED before entering the engine and the last time i diconnected the MAF, the car wouldnt start at all.
Anyone know how effective the eBay cables are for checking faults?
ALSO, anyone heard the theory that if you change the length of pipe from air flow meter MAF to throttle on a standard car, it could cause problems?
Cheers
Last edited by mikk@; 26-05-2008 at 12:52 PM.
New Dubber
Sometimes the coolant temp sensor (G62) can cause this problem on cold start have you had the car scanned?
Volkswagen Fan
Nope.. i thought there might be some obvious things i can check myself before i get it scanned.
Any1 know of a worshop in Wollongong to perform scan?
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