Golf AGG engine rev limiter.

[cpas]

Hi to you all.
I have just noticed (whilst overtaking a Sunday driver!!) that my 2 litre Golf (AGG) hits the rev limiter at 5000 RPM, nowhere near the 6k indicated red line. Is there a reason for this and is there an easy way of correcting it?
I have noticed that the engine runs reasonably well but is a little lumpy. Could these things be linked?
Thanks.

[VAG1]

How did it feel when it hit 5000rpm? When my car hits the rev limiter it seems to back off all the power suddenly and you know you've hit the limiter if that makes sense.

[5harp3y]

Timing is out, common mk3 8v problem. (5 sec google would have answered your question)

Make sure the cambelt /gearbox / dizzy etc etc are timed up correctly.

If the timing is correct then the hall sender / dizzy is kaput!

first thing to do though is get vagcom on it to check for fault codes

[cpas]

VAG1 said:

How did it feel when it hit 5000rpm? When my car hits the rev limiter it seems to back off all the power suddenly and you know you've hit the limiter if that makes sense.

Definitely rev limiter - as you say, suddenly no power! Not very fast in 2nd gear either!!!

[cpas]

5harp3y said:

Timing is out, common mk3 8v problem. (5 sec google would have answered your question)

Make sure the cambelt /gearbox / dizzy etc etc are timed up correctly.

If the timing is correct then the hall sender / dizzy is kaput!

first thing to do though is get vagcom on it to check for fault codes

Yes, I did Google it after listing on here Will look at these items now. Appears to be a common problem Car has done 115k miles so may need a new dizzy! Does the hall Sender just control the rev limiter or is it the main pulse generator for the coil?

[5harp3y]

it does the TDC timing for the ECU.

vagcom will flag it up if its kaput.

[cpas]

5harp3y said:

it does the TDC timing for the ECU.

vagcom will flag it up if its kaput.

Thanks for your replies.

Can I download Vagcom software from anywhere or do I have to get the car checked at VAG? One forum mentioned using it on a laptop.
Also, you said about gearbox timing - is there a TDC sensor on the gearbox or clutch then?
I've only had the car a while and haven't fully read all the info about the mechanisms and magic within!
I must join your forum sometime. Sounds very interesting.

[5harp3y]

Gearbox TDC marker is on the flywheel, can be seen through the inspection cap (green) on top of the gearbox. No actual sensor etc

You 'can' download vagcom onto a laptop etc, I havent and still need to get my car scanned.

Over at No-Rice.com there is a VAGCOM section, come along and join up, loads of helpful info there.

[cpas]

5harp3y said:

Gearbox TDC marker is on the flywheel, can be seen through the inspection cap (green) on top of the gearbox. No actual sensor etc

You 'can' download vagcom onto a laptop etc, I havent and still need to get my car scanned.

Over at No-Rice.com there is a VAGCOM section, come along and join up, loads of helpful info there.

Tanks again for your replies and I will stop bugging you soon!!!
I would assume that the gearbox timing mark must be aligned when the crankshaft marks are aligned on the bottom pulley since they are effectively fixed? So as long as these align with their markers and the cam shaft marks align then that should be OK? Can the dizzy timing be set with a strobe the same as old style 'points' cars? I have found some code readers on e-bay for about £30 but this seems to cheap. Are they really OK?

[5harp3y]

http://www.no-rice.co.uk/community/showthread.php?...

Should help loads

not sure on the code readers, never used one.

HTH