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Zed N/A power loss at lower RPM

Hi guys, I'm a total newbie to the zed n' I've got a 1995 N/A Jap import. It is basically standard apart from the exhaust and some sort of a air flow control.

 

I really don't know what this air flow control is but it has a on/off switch n' a controller ranging 1-9. When in idle I tried switching the air flow controller off and the rev counter slighly increased n' settled around 1000rpm. With the air flow controller on the rev is slightly below 1000rpm (750-800).

 

So my problem is I'm experiencing some sort of a power loss at lower rpms. This is noticable when I speed up from a stop in the normal cruising style. But if I'm more aggressive :nana2: it is not noticable. I wonder why this is...

 

So far I filled my tank only once n' I used usual juice but I'm hoping to use high octane juice from next time... Could it be the fuel I'm using? Or is it something to do with engine tuning? Or is this normal?

 

I appreciate your help... thanks

Featured Replies

My advice would be to remove the Airflow controller, its offers no advantage with your spec and will just cause running problems.

 

Performance issues could be a result of many causes.

 

Error codes putting it in safety mode. Vacumn leaks. Retarded timing, Running rich from Bad o2 sensors or FPR. Incorrect or old spark plugs.

 

Do an ECU test to check for Error codes.

Check around the engine bay with engine running for air leaks (or get hold of a boost leak detector)

Have the timing checked (should be 15 BTDC).

See if you can get the car checked by somebody with a conzult or Datascan, and check for o2 sensor problems.

  • Author

Never thought that zed is such an advance piece of machinary.

 

Thanks for the info... I'll have a look into the things you mentioned.

 

By the way, what does the air flow controller do? And can I remove it by my self? (I don't know how to though) Is it just enough to switch it off from the control box?

Does an N/A have a safety mode!?!?!

 

Yes. Same as a TT but without the restricted boost ofcourse, it still retards timing and runs richer fuel maps.

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