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Model specific boards => Golf mk4 => Topic started by: Tazzy on 14 December 2012, 17:31

Title: Continual Problem
Post by: Tazzy on 14 December 2012, 17:31

well ive had this problem for a while now, and everytime i think ive sorted it, i seem to of not have, ive spent alot of money on changing many parts from alot of different opinions and advice, well ive no more money to change anything else, this problem needs sorting

ive already changed the following...

Pipercross Air Panel Filter
NGK Spark Plugs
New Radiator
New Fuel Injection Pump Relay
New Fuel Pump
New Fuel Filter
New Mass Air Flow Sensor
New Crankshaft Sensor
New Lambda Sensor
New Thermostat
New Starter Motor
New ECU
New Clutch/Compression Plate/Thrust Bearing

the problem is that it wont rev past 4.5k rpm, it stuggle, which of course in fifth gear is 80mph

now today, it seems to of got worst, it now struggles at 3k rpm, which is an issue as im not going to be able to go on the motorway, cant really be doing 50mph now can i

what could it be? with numerous diagnostic readings, nothing is appearing, so it must be mechanical?

is it voltage? slipping clutch?

im out of ideas, its not like i redline it, mainly because i havnt been able to for a few years now, plus i live in birmingham, capital of traffic jams mainly because theres many re tards here that got their licenses from a cereal box :-)

1.8 20v non turbo

cheers ta, thanks very moochos

Title: Re: Continual Problem
Post by: T_J_G on 14 December 2012, 17:35

Ummmmm what car?

Title: Re: Continual Problem
Post by: Jin_C on 14 December 2012, 17:38

Was just about to ask the same, what engine?

This suggestion is pretty out there but could it be a very stretched throttle cable? Can you rev it higher if you manually move the TB yourself? (Assuming you have Drive By Cable)

Title: Re: Continual Problem
Post by: Big-G on 14 December 2012, 17:45

First thing to come to mind is fuel filter ? Changed it ?

Title: Re: Continual Problem
Post by: GTi_James on 14 December 2012, 17:49

horse in the back?  :lipsrsealed:

have cleaned everything out? really bad boost leak? coils gone? any codes at all?

Title: Re: Continual Problem
Post by: Tazzy on 14 December 2012, 17:59

ah sorry, i knew i forgot something, oops

mk4 (obviouly)

1.8 20v non turbo  :cry: 125bhp

ive also chance the fuel filter and fuel pump

i havnt tested pulling the throttle from the engine, ill try that tomorrow

anything else?

Title: Re: Continual Problem
Post by: navmk4gti on 14 December 2012, 18:27

I would think throttle body problem too :undecided:

Can you rev it all the way when just siting idle?

Title: Re: Continual Problem
Post by: Tazzy on 15 December 2012, 09:56

nope, whether im stationary or moving, it does the same, it also idles alot at 1k, which, with a loud exhaust also, i get some evil looks  :undecided:

Title: Re: Continual Problem
Post by: navmk4gti on 15 December 2012, 10:10

Hows your mpg? Sounds like maf or ignition amp

Title: Re: Continual Problem
Post by: Tazzy on 15 December 2012, 11:56

i do use alot of fuel, already changed the maf

Title: Re: Continual Problem
Post by: rio_gti on 15 December 2012, 12:26

Cat collapsing??

Title: Re: Continual Problem
Post by: Wazzzer on 15 December 2012, 13:38

do you have VAG COM?

Title: Re: Continual Problem
Post by: golfyste on 16 December 2012, 16:27

Firstly have you used all genuine parts (genuine maf etc) as if you haven't you may have already changed what is causing the problem a new part which is also causing the problem as it doesnt work properly.

second i would say clean your throttle body and try rev it by hand if cable throttle.