1989 honda prelude check engine light on and won't hold charge

SOURCE: 1989 honda prelude enigne idles high then low irratic

I had the same problem on a Rover. There was a leak in inlet manifold that was caussing the problem.
To verify, spray some sealant to temporarily seal the inlet manifold .and the eratic idling should disappear for some time.
If it does, you know there is leak in inlet manifold which you can take of and refit with a new gasket.

SOURCE: 2002 Honda CR-V Battery Light needs to be reset

Get a code tool from the parts store. You can reset system with that.

SOURCE: 1989 honda prelude. engine surges. from normal to 2100 rpms

There is a warm up valve on the throttle body(should have 2 small coolant hoses). remove the valve and have someone start the car while you block the port to the valve on the intake. If that clears up the problem you can cut a piece of cardboard to mount in between the valve and intake.should straighten it out.

SOURCE: 89 Honda Accord Battery Light is On

The FuseLink is blown. It is a 100 AMP in-line fuse on the red wire from the alternator.

Colin Stickland

• 22516 Answers
• Posted on Nov 29, 2009

SOURCE: 1991 Accord battery light on (fuses/alternator ok): suggestions?

renew the alternator ,the brushes/commutator are gone .put it on a better becch test with a 60 amp loading minimum and see what i mean or better still remove the regulator housing and inspect the brushes and the commutator and see what i mean