I have a 1987 honda prelude 2.0 Si and the PGM - Fi light comes on. Has any one had a similar problem and can you steer me in the right direction to fix it

Asked by Feb 03, 2012 at 12:39 PM about the 1987 Honda Prelude

Question type: General

When the car warms up the PGM - Fi light comes on and causes the car to idle high
and also surge.

1 Answer

2,735

Hi, sounds like you have an air leak on the inlet system, check all vacuum and breather system hoses, if there are no apparent leaks then try CAREFULLY and avoiding around the distributor cap and spark plugs, spray Brake or Carb cleaner sparingly around the inlet manifold gasket and throttle body, what you are looking for is an increase in engine speed, the Brake cleaner will help to locate a blown or damaged gasket. Finally you could check the E.C.U for fault codes. The E.C.U is located ( U.K ) in the passenger footwell. Check out this helpful sight - www.92lude.com , click on 'How to's' in the menu and find 'Engine diagnostic codes' this will explain how to recover fault codes, specialist diagnostic equipment is NOT required.

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