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MG MGF Technical - K&N induction queory

Just fitted a K&N induction kit to my 1997 1.8i mgf ( sounds the dogs ) But now the car is idling at around 1500 rpm. Never had this problem with other cars i have modded before. So is there anything i need to adjust on the mgf to get it idling at correct rpm?
Thanks in advance for replies
Paul

Managed get the car idling at 1000 rpm by adjusting the throttle sensor.
Paul

Would have been easier if you'd just reset the ECU sensor input circuit:

- ignition on
- key accelerator five times within 10 seconds
- ignition out

Start engine.
Dieter

Dieter

Sorry, what do you mean by key accelerator. Do you mean rev the engine or just blip the accelerator with the ignition on but engine off.

Thanks.
Len

Len

Ignition on but engine not running then as Dieter says

Ted
Ted Newman

and he means 'press' by 'key'

Ignition on, but engine not running
Press Accelerator to the floor 5 times
Ignition off

Now restart engine to see effect!
Dave Livingstone

Ted and Dave,

Thanks for that.
Len

I fitted a K&N filter to my 98 MGF sometime ago, but had no difference in idle speed.
I did however have a difference in the amount of fuel I was using!!!!
It was because I would floor it at any opportunity that would make that wonderful noise. LOL.

Actually I just went out to my car (yes it's 1.00am here) and did the reset function. I will see if it makes any difference in the morning when I start the car. (The neighbours would not appreciate my enthusiasm by starting the car now.)


Cheers,
Branko.



Branko

I did the reset function, and to honest i cannot tell any differance at all.
Paul

>>I did the reset function, and to honest i cannot tell any differance at all.

Often the case. But, if the calibration in the ECU is way out, it can help.
Dave Livingstone

The other problem - that's not been mentioned yet - is when tightening a worm-drive jubilee clip to a plastic throttle body. What often happens is the throttle body will distort under the unequal clamping load, causing the throttle to stick and thus run a high idle.

Sometimes you can get away with this by simply undoing the clamp a little. Sometimes you don't - and replacement (52mm alloy throttle body beckons) becomes necessary.

The K&N instructions should come with a relevant warning. Tight enough is usually just sufficient to stop the spacer tube from being wriggled off...

http://www.mgf.ultimatemg.com/group2/air_filters/f_fitting.htm
Rob Bell

This thread was discussed between 26/02/2006 and 27/02/2006

MG MGF Technical index

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