| Hunting for idle |
Subject: Hunting for idle by lunytnz on 2013/8/15 5:28:27 In the past week, my 87 has started doing a little seek-n-find at idle. It's not super-bad, just bouncing between 600-700 RPM. My first thought is the IAC valve (I had trouble with that sticking years ago, so it might be due for a good cleaning, if not replacement). Is there a more likely culprit? Another thing I noticed is that the dash mileage was surprisingly high... it was reading about 25 MPG. It normally shows about 21 (and calculating it manually shows it's really about 19). I filled up today and the *real* mileage for the last tank was about 18 MPG. Are these symptoms possibly related? I don't *think* so, but life is full of surprises! I believe the MPG calc in the dash is based on injector pulse duration. Maybe the idle problem is throwing it off??? Cheers! |
