80 cant rev past 5k

I have a 80 2.0e 3A engine, allthough I can rev to the red line in neutral I cant seem to take it past 5k while being drivern, I have allready changed
plugs and filters any ideas?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Is this an automatic?
full throttle switch working? I have seen some screens inside of the large intake manifold rubber boot turned upside down? exhaust restriction like a partially clogged cat. conv? possibly wrong fuel pump relay causing the pump to shut down at a certain rpm?? restriction in the air intake for the air filter box? oil level too full? incorrect adjustment of the accelerator cable? bad distributor cap, rotor, plug wires or ign coil? bad knock sensor?
to name a few reasons or possible causes off the top of my head.
later, dave

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

This is a manual, what I dont understand is in neutral it free revs and sounds really smooth I can hit the red line with the pedal to the floor
But why do things change under load?, does the above rule out cable and throttle problems, under point towards poor fueling or air?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Could it have been Oliver Gunnell who typed:
||| ||| Is this an automatic? ||| ||| full throttle switch working? ||| I have seen some screens inside of the large intake manifold rubber ||| boot turned upside down? ||| exhaust restriction like a partially clogged cat. conv? ||| possibly wrong fuel pump relay causing the pump to shut down at a ||| certain rpm?? ||| restriction in the air intake for the air filter box? ||| oil level too full? ||| incorrect adjustment of the accelerator cable? ||| bad distributor cap, rotor, plug wires or ign coil? ||| bad knock sensor? ||| ||| to name a few reasons or possible causes off the top of my head. || || This is a manual, what I dont understand is in neutral it free revs || and sounds really smooth I can hit the red line with the pedal to || the floor || || But why do things change under load?, does the above rule out cable || and throttle problems, under point towards poor fueling or air?
free revving, i.e. not under load needs very little power (not a good idea for longevity), As soon as you put the engine under load, the spark has to work harder, you need more fuel, the advance and retard mechanism whether mechanical or electronic changes the timing, the amount of air drawn through the airfilter increases etc etc.
So any one (or more) of the suggestions already given.
Des
--
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com ).
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

I do get your point, but can i rule out accelerator cable problems and full throttle switch working as would these if not right affect free reving too?.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Most things are easy to check and not expensive for you to do, so why not check them out? ;-) Sometimes the simple things can cause the problem that you are experiencing. Like too much oil in the engine or an accelerator cable that is not properly adjusted. Even an upside down screen in the intake boot. Check things out!!! <g>
Does your ECM/ECU have blink code ability? I don't think that the Ross-Tech Vag-Com tool will work with your 89. :-( Do you have a good repair manual for this Audi? It might give you some other suggestions.
Oh and BTW when did you start experiencing this problem? What happened before the engine would not give you full power? How does the engine idle? Maybe the injectors are partially clogged??
later, dave Reminder........ Before you criticize someone, you should walk a mile in their shoes. That way, when you criticize them, you are a mile away from them, and you have their shoes. Frieda Norris
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

I think I need to see if there are any fault codes in the ecu dont I, Could anybody point me to a help page on this agian for a 1989 2.0e 3A engine?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
My guess, a faulty MAF sensor.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.