Last post on Oct 22, 2013 at 2:53 PM
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Fuel System, Electrical, Engine
#2 of 1702 kuro
Feb 16, 1999 (10:00 pm)
88 Integra with 130,000 mi. After running at freeway speed for about three minutes, check engine light comes on (doesn't when driving on city streets). If engine is shut off momentarily, light does not come back on for awhile. Doesn't appear to be any performance effects. Mechanic checked computer--said there was no code. Anyone have an idea?
#3 of 1702 akt
Feb 17, 1999 (5:26 pm)
I have the opposite problem with my 91 Tercel w/ 60k miles: Comes on during city driving, but then turns off when on the freeway. Sometimes it stays on for a few days, sometimes just a few minutes. And the times it comes on is just as eradic. My Tercel also doesn't seem to have any performance effects...
Feb 17, 1999 (6:37 pm)
I'm having the same problem with my 96 Acura Integra. The check engine light keeps coming on and going off by itself (about 5 times in the last 250 miles). I've only bought it 1 week ago, and I'm a little worried about it. Anybody ran any OBDII diagnostics on a car with a flaky check engine light?
Feb 18, 1999 (3:47 am)
these things can drive you crazy sometimes and there isn't always an answer readily available. You might all check your catalytic converters, especially on the cars with higher mileages, if no codes come up.
#6 of 1702 jags3
Feb 18, 1999 (10:34 pm)
The most "common cause" of the "check engine" light is the Exhaust Gas Recirculation
(E.G.R.) valve on most Asian vehicles. Although
it is sometimes quite disconcerting to have the
light come on it is usually not harmful to the engine or it's performance. The E.G.R. valve is
exposed to high temperatures and it can get
"carbon fouled" easily and therefore send a
signal to the Electronic Control Module (E.C.M.)
that there may be a problem (not necessarily
a significant one).
Feb 19, 1999 (2:03 am)
Yes, that's a good suggestion...on some cars, if the EGR valve and the tube that routes it are clogged, that can get pricey, they're hard to clean out. But you should have gotten a code on that, I would think. Definitely worth checking!
#8 of 1702 dhoff
Feb 19, 1999 (4:13 pm)
This is in reference to akt's Tercel and kuro's Integra -
Another cause of the check engine light coming on in a higher-mileage car is a faulty oxygen sensor.
Should still store a code, though. Shouldn't anything that causes the light to go on store a code?
Feb 19, 1999 (7:59 pm)
You'd think so, but he says no, so we're trying to diagnose based on that information.
Feb 19, 1999 (11:17 pm)
On most fords the check engine light comes on for no other reason but to get you to take the car in for a tune up and check up. (at about 60,000 miles). There is a reset the repair person resets to clear the light. On a van is is on the passenger side , in front of the door, hid behind the side panel. Hold in reset, turn on key switch, then release the reset switch.